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Document:	DEC 3000 Model 300 Series AXP Hardware Reference Guide
Order Number:	EK-PELCN-OG
Revision:	C01
Pages:	312
Original Filename:	https://web-docs.gsi.de/~kraemer/COLLECTION/DEC/pelcnogc.pdf

OCR Text

DEC 3000 Model 300 Series AXP
Hardware Reference Guide
Order Number: EK–PELCN–OG. C01

Digital Equipment Corporation, Maynard, MA

Second Printing, January 1994
The information in this document is subject to change without notice and
should not be construed as a commitment by Digital Equipment Corporation.
Digital Equipment Corporation assumes no responsibility for any errors that
may appear in this document.
© Digital Equipment Corporation, 1994.
All Rights Reserved.
Printed in U.S.A.
The postpaid Reader’s Comments form at the end of this document requests
your critical evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation: AXP,
Alpha AXP, DEC, DEC Open3D, DEC PHIGS, DECchip, DECnet, DECwindows,
Digital, OpenVMS, RX, RZ, ThinWire, TURBOchannel, VAX DOCUMENT and
the DIGITAL logo.
Open Software Foundation is a trademark of, and Motif, OSF, OSF/1 and
OSF/Motif are registered trademarks of the Open Software Foundation, Inc.
CD is a trademark of Data General Corporation; ISDN is a registered
trademark of Fujitsu Network Switching of America; MIPS is a trademark
of MIPS Computer Systems, Inc.; PostScript is a registered trademark of Adobe
Systems Incorporated.
All other trademarks and registered trademarks are the property of their
respective holders.
FCC NOTICE: This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference, in which case users
will be required to correct the interference at their own expense.
S2437

This document was prepared using VAX DOCUMENT Version 2.1.

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Introduction to Your System
Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graphics Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated Services Digital Network (ISDN) . . . . . . . . . . . . . . . .
Audio Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Personalization Capabilities . . . . . . . . . . . . . . . . . . . . . .
Firmware Update Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–2
1–7
1–9
1–11
1–12
1–13
1–14

2 Adding, Removing, and Replacing Internal Options
Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recording Information Before Making Changes . . . . . . . . . . . . . .
Understanding SCSI IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identifying and Locating Options . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Installing a Removable-Media Drive . . . . . . . . . . .
Removing and Installing a Fixed Disk Drive . . . . . . . . . . . . . . . .
Removing and Installing a Memory Module . . . . . . . . . . . . . . . . .
Removing and Installing a TURBOchannel Option (For Models
300/300X/300LX Systems) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Installing the CPU Module . . . . . . . . . . . . . . . . . .
Removing and Installing the Power Supply . . . . . . . . . . . . . . . . .
Removing and Installing the System Module . . . . . . . . . . . . . . . .
Restoring the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1
2–3
2–12
2–13
2–21
2–22
2–27
2–33
2–38
2–44
2–46
2–50
2–55

iii

3 Connecting External Options
Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tablet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expansion Boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Device Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–1
3–2
3–2
3–3
3–3
3–4
3–5
3–6

4 Using Console Commands
Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BOOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTINUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DEPOSIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXAMINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HALT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HELP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INITIALIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–1
4–3
4–6
4–8
4–15
4–16
4–20
4–24
4–25
4–29
4–30
4–31
4–32
4–45
4–58
4–59

5 Using the Password Security Feature
Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Secure Console Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Invoking the Password Security Feature . . . . . . . . . . . . . . . . . . .
Changing, Erasing, and Disabling the Password . . . . . . . . . . . . .

5–1
5–2
5–3
5–7

6 Using an Alternate Console Device
Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Alternate Console Feature . . . . . . . . . . . . . . . . . . . . .

6–1
6–2

7 Troubleshooting by Visual Inspection
Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Troubleshooting Tables . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–1
7–2
7–10

8 Advanced Diagnostics
Chapter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preliminary Power-up Test Displays . . . . . . . . . . . . . . . . . . . . . .
Messages from Other Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Problem Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–1
8–2
8–11
8–12

A Hardware Specifications
Appendix Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1
A–2

B Internal Options: Specifications and SCSI ID Settings
Appendix Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RX26 Drive Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RX26 Diskette Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ25 Fixed Disk Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ25L Fixed Disk Specifications . . . . . . . . . . . . . . . . . . . . . . . . .
RZ26 Fixed Disk Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ26L Fixed Disk Specifications . . . . . . . . . . . . . . . . . . . . . . . . .
RZ28 Fixed Disk Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .

B–1
B–2
B–3
B–6
B–12
B–15
B–18
B–21

C Port Pinouts
Appendix Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External SCSI Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10BASE-T Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISDN Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard/Mouse or Tablet Port . . . . . . . . . . . . . . . . . . . . . . . . . .
RS-232 Synchronous/Asynchronous Communications Port . . . . . .

C–1
C–2
C–4
C–5
C–6
C–7
C–8

D Associated Documents
E Help in Debugging Programs
Appendix Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Examining the Impure Area . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Examining the Machine Check Logout Area . . . . . . . . . . . . . . . .

E–1
E–2
E–3

F Supplementary Information for PTT Network Users
Appendix Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

F–1

Guide to DEC 3000 Model 300 Series AXP
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firmware Update Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . .
The show device Display . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The show config Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Display with Error at Startup . . . . . . . . . . . . .
The show mem Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turning Off the System Unit . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the System Cover . . . . . . . . . . . . . . . . . . . . . . . . .
Attaching the Antistatic Wrist Strap . . . . . . . . . . . . . . . . . . .
Power Cable and Connectors . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI Cable and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing a Removable-Media Drive . . . . . . . . . . . . . . . . . . .
Installing the Shield and Filler Panel . . . . . . . . . . . . . . . . . .
Removing the Shield and Filler Panel . . . . . . . . . . . . . . . . . .
Cabling the RX26 Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing a Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Mounting Bracket from a Disk Drive . . . . . . .

xv
1–2
1–15
2–4
2–6
2–9
2–11
2–16
2–18
2–19
2–19
2–20
2–21
2–23
2–24
2–25
2–26
2–28
2–29

Glossary
Index
Figures
1
1–1
1–2
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
2–9
2–10
2–11
2–12
2–13
2–14
2–15
2–16

2–17
2–18
2–19
2–20
2–21
2–22
2–23
2–24
2–25
2–26
2–27
2–28
2–29
2–30
2–31
2–32
2–33
3–1
5–1
6–1
6–2
8–1
B–1
B–2
B–3
B–4
B–5
B–6
C–1
F–1

Cabling a Drive in Position 1 . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling a Drive in Position 2 . . . . . . . . . . . . . . . . . . . . . . . . .
160 MB Memory Configuration . . . . . . . . . . . . . . . . . . . . . . .
8-Megabyte SIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32-Megabyte Simm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Installing a Memory Module . . . . . . . . . . . . . .
Removing and Installing a TURBOchannel Option . . . . . . . .
Removing the TURBOchannel Filler Plate . . . . . . . . . . . . . . .
Removing the CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . .
The Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . .
Reinstalling the Metal Shield . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Ethernet ROM . . . . . . . . . . . . . . . . . . . . . . . .
Removing the System Module . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the System Cover . . . . . . . . . . . . . . . . . . . . . . . . . .
Reconnecting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Display After Restoring Your System . . . . . . . . . . . .
External Connections to the System Unit . . . . . . . . . . . . . . .
The Secure System Jumper . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Alternate Console to the System . . . . . . . . . .
Alternate Console Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . .
Position of Diagnostic Display Lights . . . . . . . . . . . . . . . . . . .
RX26 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ25 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ25L Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ26 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ26L Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ28 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Communications Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ports to Which Warning Label Applies . . . . . . . . . . . . . . . . .

2–30
2–31
2–34
2–35
2–35
2–36
2–41
2–42
2–45
2–47
2–48
2–49
2–51
2–53
2–56
2–58
2–59
3–6
5–5
6–3
6–5
8–3
B–5
B–9
B–14
B–17
B–20
B–23
C–1
F–5

vii

Tables
1
1–1
2–1
2–2
2–3
2–4
4–1
4–2
4–3
4–4
4–5
4–6
4–7
4–8
4–9
4–10
4–11
4–12
4–13
4–14
4–15
4–16
4–17
4–18
4–19
4–20
4–21
4–22
4–23
4–24
5–1
5–2
5–3
5–4
viii

Telephone Numbers of Digital Support Centers . . . . . . . . . . .
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Elements of the show device Display . . . . . . . . . . . . . . . . . . .
Elements of the show config Display . . . . . . . . . . . . . . . . . . .
Elements of the show mem Display . . . . . . . . . . . . . . . . . . . .
TURBOchannel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supported Keys and Control Characters . . . . . . . . . . . . . . . .
Parameters/Qualifiers for the boot Command . . . . . . . . . . . .
Device Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Naming Convention Common to Both Operating Systems
................................................
Alternate Naming Convention for DEC OSF/1 System . . . . .
set[env] Command Environment Variables and Values . . . . .
boot_osflags Command Values . . . . . . . . . . . . . . . . . . . . . . . .
set diag_section Command Values . . . . . . . . . . . . . . . . . . . . .
Selecting a Keyboard Language . . . . . . . . . . . . . . . . . . . . . . .
Environment Variables and Values for the show Command
................................................
Test Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Erase Disk Utility Prompts . . . . . . . . . . . . . . . . . . . . . . . . . .
Diskette Formatter Utility Prompts . . . . . . . . . . . . . . . . . . . .
Verify Utility Prompts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASIC Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . . . .
FEROM Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . .
NVR Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCC Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NI Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TC Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISDN Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . . . .
CXT Diagnostic Subtests . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Console Command Access . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steps to Making the System Secure . . . . . . . . . . . . . . . . . . . .
Entering a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Entering a Login Command . . . . . . . . . . . . . . . . . . . . . . . . . .

xiv
1–3
2–5
2–7
2–11
2–39
4–4
4–8
4–11
4–12
4–12
4–33
4–39
4–40
4–42
4–46
4–60
4–62
4–63
4–64
4–66
4–67
4–68
4–69
4–70
4–71
4–74
4–75
4–77
4–78
5–2
5–3
5–3
5–6

5–5
6–1
6–2
7–1
7–2
7–3
7–4
7–5
7–6
7–7
8–1
8–2
8–3
A–1
A–2
A–3
A–4
A–5
B–1
B–2
B–3
B–4
C–1
C–2
C–3
C–4
C–5
C–6
D–1
D–2
D–3
D–4
F–1
F–2
F–3
F–4

Changing a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Alternate Console . . . . . . . . . . . . . . . . . . . . . . . . .
Alternate Console/Printer Port Parameters . . . . . . . . . . . . . .
Preliminary Troubleshooting of System Problems . . . . . . . . .
Troubleshooting Monitor Problems . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Mouse/Tablet Problems . . . . . . . . . . . . . . . .
Troubleshooting Keyboard Problems . . . . . . . . . . . . . . . . . . .
Troubleshooting SCSI Device Problems . . . . . . . . . . . . . . . . .
Troubleshooting Network Problems . . . . . . . . . . . . . . . . . . . .
Troubleshooting Audio Problems . . . . . . . . . . . . . . . . . . . . . .
Console LED Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRU Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Console-Level Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Unit Dimensions - Desktop . . . . . . . . . . . . . . . . . . . .
System Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . .
System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Environmental Specifications . . . . . . . . . . . . . . . . . .
Acoustics—Declared Values per ISO 9296 and ISO 7779 . . . .
J5 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J6 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J7 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ25L Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . .
External SCSI Port Pin-outs . . . . . . . . . . . . . . . . . . . . . . . . .
10BASE-T Port Pin-outs . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISDN Port Pin-outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Port Pin-outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard/Mouse or Tablet Port Pin-outs . . . . . . . . . . . . . . . .
Synch/Asynch Communications Port Pin-outs . . . . . . . . . . . .
DEC 3000 Model 300 Series AXP System Printed
Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End User Documentation, QA–MT4AB–GZ . . . . . . . . . . . . . .
General OpenVMS AXP Operating System Documents . . . . .
Miscellaneous Documents . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Specifications for the System Module . . . . . . . . . . . .
Module Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearance and Creepage Distances . . . . . . . . . . . . . . . . . . . .
Cables Supported by the Approved Module . . . . . . . . . . . . . .

5–7
6–2
6–4
7–3
7–5
7–6
7–7
7–7
7–8
7–9
8–4
8–6
8–10
A–2
A–2
A–3
A–4
A–5
B–10
B–10
B–11
B–12
C–2
C–4
C–5
C–6
C–7
C–8
D–1
D–4
D–5
D–5
F–2
F–3
F–4
F–7

Preface

About This
Guide

This guide describes how to:
•

Remove and replace internal options

•

Connect external options

•

Use console commands to run tests and utilities, and to set
and show the value of parameters

•

Set the password security feature

•

Connect and use an alternate console

•

Identify and solve problems

This guide also provides system and option specifications, port
pinouts, a list of associated documents, help in debugging
programs, and information for PTT network users.

Two Methods of
Adding Options

You can add internal options by:
•

Adding the options yourself.

•

Having a Digital service representative add them.

You can add external options to your system, by connecting them
to the SCSI port, the ISDN port, the Audio port, and the RS232
asynchronous/synchronous communications port.
If you choose to add internal options yourself, note that additions
typically take about 15 minutes for each option. If you choose
to add external options, note that additions typically take about
5 minutes for each option, although some procedures may take
more or less time.

Conventions in
This Guide

The following conventions are used in this guide:
Convention

Description

Return

A key name is shown enclosed to indicate
that you press the named key on the
keyboard.

UPPERCASE
lowercase

The console program does not distinguish
between uppercase and lowercase
characters in typed user input. All
examples in this guide show user input
in lowercase. All system output is in
uppercase.

show

A word in this typeface indicates a
command that you must enter from the
keyboard at the console prompt (>>>). For
example, boot.

variable

Lowercase italicized letters in commands
indicate a variable value that you must
provide. The value must be an actual
option like a number or logical such as
on/off. For example, >>> set language 3.
A variable may be indicated by angle
brackets < > as in the following help
command example:
>>> he[lp]

Return

Result:
BOOT
HELP ADVANCED
INITIALIZE
SET[ENV] <envar> <value>
SHOW | PRINTENV [<envar>]
TEST

[]

xii

The information contained within these
brackets is optional. The brackets are not
part of the command syntax and should
not be typed.

Convention

Description

{}

The information contained within these
braces is required. The braces are not part
of the command syntax and should not be
typed.

Quotation marks indicate a literal string.
A command in lowercase surrounded by
quotes will not convert to uppercase and
will be put on the network as lowercase.
For example, >>> B esa0 -fi "test.sys"
will remain in lowercase letters.

Options/qualifiers are identified by a dash
and indicate that additional information
can be, or in some cases must be, supplied
on the command line. The dash must be
supplied.

WARNING:

Warnings contain information to prevent
personal injury. Read these carefully.

CAUTION:

Cautions provide information to prevent
damage to equipment or software. Read
these carefully.

A number in a circle corresponds to a
number in an illustration.

xiii

Digital Support

Digital Services representatives are available for on-site support
for warranty and service contract customers. If you are not
currently eligible to receive this support but would like to be
eligible, please contact either a Digital Support Center listed in
Table 1, or your local Digital office.

Support
Center Contact
Numbers

Table 1 lists the Digital Support Center contact numbers. If a
number for your area is not listed below, please contact your
local Digital office for assistance.
Table 1 Telephone Numbers of Digital Support Centers

xiv

Country

Telephone Number

United States

1-800-354-9000

Canada

1-800-267-5251

Canada (Quebec)

1-800-267-2603

United Kingdom

[44]25659200

France

[33]92955111

Germany

[49]-(89)-95913218

Australia

009 252-277

Figure 1 is a guide to the DEC 3000 Model 300 Series AXP
documentation.

Figure 1 Guide to DEC 3000 Model 300 Series AXP
Documentation

READ THIS
FIRST:
Setting up
Your System

To use a workstation,
and handle problems.

Adding
Memory

To get the system
set up and running,
and connect to a
network.

Adding a
RemovableMedia Drive

For Digital Services
personnel or customers.

Adding an
Internal Fixed
Disk Drive

MLO-011294

1
Introduction to Your System
Chapter Overview
Introduction

The DEC 3000 Model 300 Series AXP system is a
high-performance, desktop system that uses Digital’s
DECchip 21064 RISC-style microprocessor. Your new
DEC 3000 Model 300 Series AXP system is a member of a
family of powerful desktop systems based on the Digital Alpha
AXP architecture. It provides all the advantages of a 64-bit
computing environment and the choice of multiple operating
systems.

In This Chapter

This chapter covers the following topics:
•

Product Description

•

Operating Systems

•

Graphics Capabilities

•

Integrated Services Digital Network (ISDN)

•

Audio Capabilities

•

System Personalization Capabilities

•

Firmware Update Utility

1–1

Product Description

Product Description
System
Components

The DEC 3000 Model 300 Series AXP system consists of four
basic components:
•

System unit

•

Monitor

•

Keyboard

•

Mouse

Figure 1–1 shows the system and its components.
Figure 1–1 System Components

MLO-010619

Model 300
Series Features

1–2

There are four variants of the DEC 3000 Model 300 series of
systems: the Models 300, 300X and 300LX with TURBOchannel
option support, and the Model 300L. Table 1–1 lists the features
of each system.

Product Description

Table 1–1 System Features
Feature

Models 300/300X/300LX

Model 300L

Order Number

Operating systems:

DEC OSF/1 AXP;
OpenVMS AXP

Same

–

CPU speed:

150 Mhz - model 300
125 Mhz - model 300LX
175 Mhz - model 300X

100 Mhz - model 300L
–
–

–
–
–

TURBOchannel
options:

Two slots

None

Refer to Chapter 2

Monitor support:

Monochrome 19"
Monochrome 17"
Color 16"
Color 19"

–
Monochrome 17"
Color 16"
–

VR319–DA/D4
VRM17–HA/H4
VRC16–HA/H4
VRT19–HA/H4

One or two additional
monitors (requires up to
two TURBOchannel HX
options)

Not available

Monitor resolution:

1280 x 1024

1024 x 768

–

Memory:

8-megabyte standard
inline memory modules
(SIMMs), expandable to 64
megabytes in 16-megabyte
increments.

Same

MS16–BA

32-megabyte SIMMs
expandable to 256
megabytes in 64-megabyte
increments.

MS16–DA

(continued on next page)

1–3

Product Description

Table 1–1 (Cont.) System Features
Feature

Models 300/300X/300LX

Model 300L

Order Number

Graphics:

Integral 8-plane 2D
graphics, 1280 x 1024
HX TURBOchannel option

Integral 8-plane 2D
graphics, 1024 x 768

PMAGB–BE/BF

2D TX
TURBOchannel option
(DEC OSF/1 AXP only)

Not available

PMAGB–JA/JB

PXG+ 8-plane 3D Z-buffer
(DEC OSF/1 AXP only)

Not available

PMAGB–DA/DB

PXG+ 24-plane 3D (DEC
OSF/1 AXP only)

Not available

PMAGB–EA/EB

8- to 24-plane
upgrade for PXG+
(DEC OSF/1 AXP only)

Not available

24-bit Z-buffer upgrade
for 8-plane PXG+
(DEC OSF/1 AXP only)

Not available

PMAG–HA

ZLX-M1 24-plane
3D Z-buffer
(DEC OSF/1 AXP only)

Not available

PMAGC–AA

3D Denali graphics
(DEC OSF/1 AXP only)

Not available

PEXGA–AA/BA
/CA

PMAG–GB

(continued on next page)

1–4

Product Description

Table 1–1 (Cont.) System Features
Feature

Models 300/300X/300LX

Model 300L

Order Number

Network
connections:

10BASE-T (twisted-pair)
10 Mb/s Ethernet port

Same

–

AUI or ThinWire
(10base2) connection using
a Digital-recommended
adapter
Industry-standard ISDN
port for voice and data
Secure system
feature:

Additional system security
for limited access to
console functions

Same

–

Audio technology:

Telephone quality audio
input/ output, including a
built-in speaker. Headset
available with some
models.

Same

–

(continued on next page)

1–5

Product Description

Table 1–1 (Cont.) System Features
Feature

Models 300/300X/300LX

Model 300L

Order Number

External SCSI-II
port:

One on-board 5 MB/s SCSI
channel for both internal
and external devices (up
to two internal and five
external devices)

Same

–

Optional dual SCSI
TURBOchannel module

Not available

PMAZC–AA

Communications
port:

25-pin synchronous/
asynchronous connection
to a printer, plotter,
modem, or console
terminal.

Same

–

Battery backup
clock:

Battery-run backup
internal clocking
system for synchronous
operations.

Same

–

Internal devices:

Two 3½-inch RZxx fixed
disk drives: RZ25, RZ25L,
RZ26, RZ26L or optional
RZ28

Same

RZ25–EP
RZ25L–EP
RZ26–EP
RZ26L–EP
RZ28–EP

or
One 3½-inch RZxx fixed
disk drive and one 3½-inch
RX26 removable-media
drive

Future Options

1–6

RX26–FB

Additional options for your system may be available at a later
time.

Operating Systems

Operating Systems
A Choice of
Operating
Systems

Digital’s Alpha AXP architecture supports multiple operating
systems for your DEC 3000 Model 300 Series AXP system.
This section gives a brief description of the operating systems
currently available for this product:
•

OpenVMS AXP

•

DEC OSF/1 AXP

Information about installation and operation of each operating
system is provided in system-specific software documentation.

OpenVMS AXP

The OpenVMS AXP operating system:
•

Is a general-purpose, multiuser operating system that can be
used in many different environments for a wide variety of
applications.

•

Promotes ease-of-use and improved programming
productivity, and facilitates system management.

•

Offers a combination of commercial strength and open
system benefits, including the following:
integrated networking
system security
distributed computing
windowing capabilities

•

DEC OSF/1
AXP

Supports a large number of industry standards that facilitate
application portability and interoperability.

The DEC OSF/1 AXP operating system complies with the OSF
Application Environment Specification (AES), which specifies
the interface to support applications that run on a variety of
hardware platforms.

1–7

Operating Systems

The DEC OSF/1 AXP operating system:
•

Is Digital Equipment Corporation’s implementation of
the Open Software Foundation (OSF) operating system
components and Motif graphical user interface and
programming environment.

•

Complies with standards and industry specifications,
including FIPS 151-1, POSIX (IEEE Std. 1003.1-1988),
XPG3 BASE branding, XTI, and AT&T System V Interface
Definition (SVID) Issue 2 (Base System and Kernel
Extensions).

•

Is an advanced kernel architecture based on Carnegie Mellon
University’s Mach V2.5 kernel design with components from
Berkeley Software Distribution 4.3 (BSD) and other sources.
DEC OSF/1 AXP provides numerous features to assist
application programmers in developing applications that use
shared libraries, multithread support, and memory mapped
files.

Factory
Installed
Software

1–8

If there is a yellow sticker over the power connector on the
back of your system unit, your operating system is already
installed on an internal fixed disk. Depending on which
operating system you ordered, your wrokstation will start with
the OpenVMS AXP Factory Installed Software (FIS) procedure,
or the DEC OSF/1 AXP Initialization Transition (IT) program.
Refer to your factory-installed software instructions for:
•

Startup procedures

•

Examples of startup screens

•

System prompts

•

Password information

•

Graphics Capabilities

Graphics Capabilities
The Model 300L
System

All DEC 3000 Model 300 Series AXP systems are shipped with
an integral, high-performance, accelerated 2-D, 8-plane, color
graphics frame buffer on the system module. However, the
Model 300L does not support additional graphics heads; that is,
you cannot connect more than one monitor to the system.

The Model
300/300X/300LX
Systems

Additional graphics capabilities are supported on the DEC 3000
Model 300 Series AXP systems; support is operating-system
specific.
•

OpenVMS Operating System
If your DEC 3000 Model 300 Series AXP system is running
the OpenVMS AXP operating system, you can add one or two
two-dimensional (2D) HX graphics options in TURBOchannel
slots 0 and/or 1. This HX option provides additional 8-plane,
accelerated 2D graphics and windowing operations. You can
add two HX options and two additional monitors to expand
the display area. Information about setting up your system
to use more than one monitor is provided in the OpenVMS
Alpha Version 1.5 Upgrade and Installation Manual.)

1–9

Graphics Capabilities

•

DEC OSF/1 Operating System
If your DEC 3000 Model 300 Series AXP system is running
the DEC OSF/1 AXP operating system, version 1.3B or
later, — the two-dimensional (2D) HX graphics option, the
two-dimensional (2D) TX graphics option, the 2D/3D ZLX
graphics options, or the 3D HX+ graphics option can be
installed in a TURBOchannel slot.
Adding either the HX option (for DEC OSF/1 AXP and
OpenVMS AXP), or adding either the HX+ or the TX option
(for DEC OSF/1 AXP only), allows you to expand the display
area. The TX option provides 8-bit and 24-bit accelerated
2D graphics, windowing operations, and a hardware cursor.
The HX+ option provides 8-bit and 24-bit accelerated 3D
graphics, windowing operations, and a hardware cursor.
Information about setting up your system to use more than
one monitor is provided in the DEC OSF/1 Guide to System
Administration.

Installation
Information

1–10

For information about installing graphics options in the Model
300/300X/300LX systems, see Chapter 2.

Integrated Services Digital Network (ISDN)

Integrated Services Digital Network (ISDN)
ISDN Not Yet
Available

Though your DEC 3000 Model 300 Series AXP system can
provide ISDN capabilities, it is not as yet agency approved and
available for your DEC 3000 Model 300 Series AXP system.
When your system is shipped, a foam block covers the ISDN port
on the back of the system unit.
Once agency approval of ISDN for the DEC 3000 Model 300
Series AXP systems is granted, you will be contacted by your
Digital sales representative to inform you of ISDN certification.
When you are ready to install ISDN hardware, you must request
your Digital service representative install the required hardware.
The following information explains the ISDN capabilities for
your DEC 3000 Model 300 Series AXP system pending license
approval.

Australian ISDN
Connections

The ISDN interface in this equipment has not completed
Australian ISDN network connection certification testing and
as such does not have an AUSTEL permit for connection. In
Australia, it is an offense to connect nonpermitted devices to a
public telecommunications network and may attract a fine of up
to $12,000.

ISDN
Capabilities

ISDN is a digital telecommunications network, providing
connectivity for voice and data applications.
Your DEC 3000 Model 300 Series AXP system includes an ISDN
Basic Rate S/T interface, which includes:

Use of ISDN B
Channels

•

Two 64 kilobits per second B channels for voice and data
transmission

•

One 16 kilobits per second D channel for signaling and
control

The B channels can be used for digitized voice, circuit-switched
data at up to 64 kilobits per second, or packet-switched data
transmission.

1–11

Integrated Services Digital Network (ISDN)

Use of ISDN D
Channels

The D channel uses a protocol standardized by the International
Telegraph and Telephone Consultative Committee (CCITT) for
setting up these D-Channel connections. The D channel can also
be used for low-speed packet transmission.

Audio Capabilities
Audio Feature

The DEC 3000 Model 300 Series AXP system features telephonequality audio input and output capabilities, including a built-in
speaker.
You can attach a microphone, headphone, handset, headset,
or externally-powered speakers to the audio port. Normally,
the RS232 audio port is used in asynchronous mode. However,
support for X.25 synchronous communications is available, but is
operating-system-dependent.
The port pinouts for the audio jack on the back of the system
unit are provided in Appendix C. Chapter 4 describes ISDN tests
that you can issue from console mode: for example, to repeat,
record and playback audio messages.

DECsound
Application

The DECsound application, shipped with your system as part
of the DECwindows Motif for OpenVMS AXP software, is an
easy-to-use software application that lets you play back recorded
messages, record audio messages, mail recorded messages, and
include recorded messages in compound documents.

Audio
Conferencing
Software

Multimedia Services software and the DECspin audio
conferencing software are also shipped with your system as
part of the DEC OSF/1 software. These free applications let
you take advantage of the voice-quality base audio on your
system. The audio headset (provided in the parts kit with some
models) is for you to use in the quiet of your office with these
new applications. See the information sheet provided with the
headset for instructions on how to start the applications.

1–12

System Personalization Capabilities

System Personalization Capabilities
Firmware
Parameters

Your system firmware includes commands and parameters that
you can change to suit your specific needs. You may change the
default settings for these parameters from console mode (>>>) by
entering the set command followed by the parameter you want
to change, as described in the next table.
To change this...

Use this command...

The action the console takes after a halt

set auto_action
set bootdef_dev
set diag_quick

The default boot device
The default diagnostic startup mode

Refer to Chapter 4 for the format and available settings for these
parameters.

Before You
Change
Parameters

Do not change any parameters without fully understanding the
effect that the change may have on your workstation. If you are
not sure about changing parameters, ask your system manager
for assistance, or your Digital service representative.

1–13

Firmware Update Utility

Firmware Update Utility
Purpose

Digital Equipment Corporation distributes new Firmware
Update utility software whenever there are any changes to the
console firmware. The utility provides new firmware for the flash
ROM (read-only memory) in your system, including the console
program and diagnostic testing capabilities.
Note
Refer to the release notes you receive with the software
update for an explanation of how to use the Firmware
Update Utility software.

Write-Protecting
the Flash ROM

For your convenience, your system is shipped from the factory
with the flash ROM write jumper, labeled W1 on the system
module, in the write-enabled position. Thus, there is no need
to remove the system unit cover and get inside the system unit.
You can update your console firmware with the latest version
using the release notes.
To write-protect the flash ROM so that it cannot be overwritten:
1. Open the system unit cover.
Caution
To avoid possible product damage, refer to Chapter 2 for
instructions on how to power off the system, open, and
work inside your system unit.

2. Locate the W1 jumper shown in Figure 1–2.
The default write-enabled position of the jumper is on pins 2
and 3.

1–14

Firmware Update Utility

Figure 1–2 Firmware Update Jumper

MLO-010745

! Enabled
" Disabled
3. Write-protect the flash ROM by moving the jumper to pins
1 and 2 (the disabled position), using tweezers or another
small tool.
4. Replace the system unit cover.
Once this is done, future firmware updates will require
repositioning the jumper.

1–15

2
Adding, Removing, and Replacing Internal
Options
Chapter Overview
In This Chapter

When you receive your system from Digital, it may be configured
with the internal devices specified in your order. At a later time,
however, you may wish to add another internal option, or remove
and replace one option with a different option.
This chapter provides the following information:
•

Recording Information Before Making Changes

•

Understanding SCSI IDs

•

Preparing Your System

•

Identifying and Locating Options

•

Removing and Installing a Removable-Media Drive

•

Removing and Installing a Fixed Disk Drive

•

Removing and Installing a Memory Module

•

Removing and Installing a TURBOchannel Option (For
Models 300/300X/300LX Systems)

•

Removing and Installing the CPU Module

•

Removing and Installing the Power Supply

•

Removing and Installing the System Module

•

Restoring the System

2–1

Chapter Overview

Required Tools

Be sure you have a Phillips screwdriver before you attempt to
remove the system unit cover or install options. You may also
need a flat-head screwdriver to remove some of the cables from
the back of the system unit.

Two Methods
for Adding
Options

There are two methods of adding internal options:
•

Add the options yourself.

•

Have a Digital service representative add them.

If you choose to add options yourself, note that additions
typically take about 15 minutes for each option, although some
procedures may take more or less time.

CAUTION:
Possible
Module
Damage

Improper installation of an optional drive or module could lead
to damage and failure of both the new drive or module and other
system components. Your DEC 3000 Model 300 Series AXP
warranty may not cover such a failure.

Device
Verification

Be sure to refer to the operating system software product
description (SPD) to verify that all installed devices are
compatible with the operating system you are using.

2–2

Recording Information Before Making Changes

Recording Information Before Making Changes
Diagnostic
Displays

Before you install any options, you should be familiar with your
DEC 3000 Model 300 Series AXP system and the following
diagnostic displays:
•

System startup messages

•

The displays resulting from the following console mode (>>>)
commands:

show device to display the names and status of devices in
your system. Device is a general name for any hardware
unit capable of receiving, storing, or transmitting data.
show config to display the status of the devices in your
system

show mem to display the amount of memory installed
These show commands are described in the next few sections.

The show
device
Command

Enter the show device command as follows:
>>> show device Return
The show device command displays the status of each SCSI
device and network interconnect that is recognized by the
system. Record the displayed information for later reference
(of particular importance is the information in the BOOTDEV,
ADDR and DEVNAM columns). After adding or replacing a
drive, you can then compare the new system configuration with
the previous one to verify that all drives were installed correctly.
If an installed drive is not listed in the display, it either is not
installed correctly or may be damaged.
The following occurs when the show device command is issued:
•

The system issues the inquiry command to obtain device
types and device names

•

The system spins up the disks

•

The device information is displayed

2–3

Recording Information Before Making Changes

•

The following information is displayed:
ID, controller, Logical Unit Number (LUN)
Device name
Device type
Device capacity
Removable or fixed media
Write protection information for each disk
Firmware revision

The show
device Display

Figure 2–1 shows an example of a show device display (the
numbers are for reference only).
Figure 2–1 The show device Display

BOOTDEV
------ESA0
DKA300
DKA500
..HOSTID..
>>>

2–4

ADDR
DEVTYPE NUMBYTES
---------- -------08-00-2B-2F-F8-E6 , TENBT
A/3/0
DISK
535MB
A/5/0
DISK
......
A/7
INITR

(

RZ25L
RX26

0900
0068

RM/FX WP DEVNAM REV
----- -- ------ --FX
RM

Recording Information Before Making Changes

Table 2–1 defines the columns of the show device display.
Table 2–1 Elements of the show device Display
Element

! BOOTDEV
" ADDR

# DEVTYPE
$ NUMBYTES
% RM/FX
& WP
' DEVNAM
( REV

Description

Console boot name for a device.
The Ethernet hardware address of each
device. 08-00-2B-2F-F8-E6 is an example
of the system hardware Ethernet address.
The SCSI ID address setting of each
device, A/3/0 is an example: where A
identifies the controller unit, 3 identifies
the address setting, and 0 identifies the
logical unit number (LUN).
The type of device in the system.
The capacity of this device.
Specific device in this system: a
removable-media (RM) or a fixed-disk
(FX) device.
Status of the drive: write-protected or not
write-protected.
The device name of the installed device.
The microcode revision number of the
installed device.

2–5

Recording Information Before Making Changes

Enter the show config command as follows:

The show
config
Command

>>> show config

Return

The show config command displays the following information:
•

The system model number

•

Revision number of the PAL (privileged architecture library)
chip

•

Name or mnemonic and status of the device

Record this information for later reference. After adding or
replacing option modules, you can compare the new system
configuration with the previous one to verify that all options are
present and functioning correctly.
Figure 2–2 shows an example of a show config display.
Table 2–2 defines the elements of the display.
Figure 2–2 The show config Display

! DEC
3000 M300
Digital Equipment Corporation
" VPP PAL X5.25-80800101/OSF PAL X1.14-80800201 - Built on 2-OCT-1993 12:47:55.09
# DEVNAM
$
%
TCINFO
DEVSTAT
------

-------CPU

-------OK KN16-AA - Vx.x-Syyy-Izzz- sx.x - DECchip 21064 P3.0

ASIC
MEM
FEROM

OK
OK
OK

CXT

NVR
SCC
NI
ISDN

OK
OK
OK
OK

SCSI

6
5

4
>>>

2–6

Recording Information Before Making Changes

Table 2–2 explains the elements in Figure 2–2.
Table 2–2 Elements of the show config Display
Element

!
"
#

Description

The system model number.
The revision number of the VPP PAL (privileged
architecture library) code: where Xn.nn is for
OpenVMS AXP or for the DEC OSF/1 AXP PAL code,
and the date on which it was released.
The physical addresses for baseboard devices, as
follows:
Slots 0 and 1 are for TURBOchannel
devices (Models 300/300X/300LX only). If a
TURBOchannel module requires both slots 0
and 1, only slot 0 is listed in the display.
Slots 2 and 3 are reserved.
Slot 4 is for a SCSI device.
Slot 5 is for I/O control.
Slot 6 is for the CXT (integral 2D accelerated
graphics module).
Slot 7 is for the system CSRs.

$
%

Device name or mnemonic.
The status of the device:
KN16-AA identifies the CPU type.
Vx.x identifies the system revision.
Syyy identifies the system ROM edit revision.
Izzz identifies the I/O ROM edit revision.
sx.x identifies the serial ROM edit revision.
DECchip 21064 P3.0 identifies the AXP chip
revision.
OK means that the device is installed correctly and
diagnosed to be OK.
A blank means there is no test for this device.

2–7

Recording Information Before Making Changes

System
Configuration
Errors

Two question marks (??) next to a component name in the
DEVSTAT column indicate a problem with that component. If
you normally use the set diag_quick on command to define
your diagnostic startup mode, the error message consists of the
question marks alone. Refer to Chapter 8 for an explanation of
the error line.
To display the error message, you must enter the following
command:
>>>show error
Example:
>>> show error

Return

?? 004 SCC 0x0060
?T-ERR-SCC-MOUSE - 0 char rcvd
Refer to Chapter 4 for an explanation of the show error
command.
If you use the set diag_quick off command to define your
diagnostic startup mode (a full startup sequence occurs), then
you will see two question marks in the display; see Figure 2–3.
Note any field replaceable unit (FRU) number and error number.
An FRU is a replaceable drive or module. See Chapter 8 for
additional information about error messages and FRU codes.

2–8

Recording Information Before Making Changes

Figure 2–3 Configuration Display with Error at Startup
DEC 3000 Model 300
Digital Equipment Corporation
VPP PAL X5.25-80800101/OSF PAL X0.14-80800201 - Built on 2-OCT-1993 12:47:55.09
TCINFO
------

DEVNAM
-----CPU

DEVSTAT
-------OK KN16-AA - Vx.x-Syyy-Izzz - sx.x - DECchip 21064 3.0

ASIC
MEM

OK
OK 32MB

CXT

NVR
SCC
NI
ISDN

OK
?? 003 0050 ptr(0) = Not Present keybd(2) = Not Present
OK Ethernet Address: 08-00-2B-2F-F8-E6, TENBT
OK

150
6
5

4
SCSI
OK
>>>
-------------------------------------------------------------------------System power up tests detected error(s).
See your system documentation for more information.
*** NO KBD - Switching to Alternate Console ***

To interpret this error message, refer to Chapter 8
of this guide for a list of FRU codes and the
DEC 3000 Model 300 Series AXP Service Guide for a detailed
explanation of error codes.

2–9

Recording Information Before Making Changes

What to
Do About a
Configuration
Error

The show mem
Command

Refer to the following table to resolve a configuration error:
If you...

Then...

Are not comfortable
diagnosing technical
errors

Contact your Digital service
representative.

Are comfortable
diagnosing technical
errors

Refer to Chapter 4 for a description
of console commands, Chapter 8
for FRU codes, and the DEC 3000
Model 300 Series AXP Service
Guide for more information.

The show mem command displays the following information:
•

Bank number

•

Memory size for each bank

•

Start address for each bank

Record this information for later reference. After adding or
replacing memory, you can compare the new system configuration
with the previous one to verify that all options are present and
functioning correctly.
Enter the show mem command as follows:
>>> show mem

2–10

Return

Recording Information Before Making Changes

The show mem
Display

Figure 2–4 shows an example of a show mem display. (The
numbers are for reference only.)
Figure 2–4 The show mem Display

BANK #
-----0
1
2
3
4
5
6
7

MEMORY_SIZE
----------008 Mbytes
008 Mbytes
008 Mbytes
008 Mbytes
000 Mbytes
000 Mbytes
000 Mbytes
000 Mbytes

START_ADDRESS
-------------0x00000000
0x00800000
0x01000000
0x01800000
0x00000000
0x00000000
0x00000000
0x00000000

>>>
Table 2–3 defines each element of the show mem display.
Table 2–3 Elements of the show mem Display
Element

! BANK #
" MEMORY_SIZE

# START_ADDRESS

Description

The bank numbers indicate the
position of each memory board.
The memory size is the total
amount of memory installed in
each bank. In this example, there
are eight megabytes of memory in
banks 0, 1, 2, and 3; none in the
remaining banks.
The starting address is the location
number of each memory bank.

2–11

Understanding SCSI IDs

Understanding SCSI IDs
Overview

Before you remove an internal device and install another device,
you should note the following information about devices and
understand SCSI IDs.

Digital RX26
Drive

Your system may arrive configured with an RX26 removable
media drive. The hardware specifications and device-specific
SCSI ID information for this drive are included in Appendix B of
this document.
If you plan to add an RX26 removable media drive, refer to DEC
3000 Model 300 Series AXP Adding a Removable-Media Drive
(part number EK–PELAF–IC), shipped with the drive.

RZ25, RZ25L,
RZ26 or RZ26L
Drives

Your system may arrive configured with an RZ25, RZ25L, RZ26
or RZ26L fixed disk drive. The hardware specifications and
device-specific SCSI ID information for these drives are included
in Appendix B of this document.
If you plan to add an RZ25, RZ25L, RZ26, RZ26L or the
optional RZ28 fixed disk drive, refer to DEC 3000 Model 300
Series AXP Adding an Internal Fixed Disk Drive (part number
EK–PELAD–IC), shipped with each additional drive ordered.

Adding an
External Option

If you plan to add a Digital manufactured compact disc drive,
tape drive, or expansion box, refer to the documentation that
accompanies that option for the proper setting of SCSI addresses
for the device. See Appendix D for a listing of external option
documentation.
If you plan to add a device that is not manufactured by Digital,
refer to the documentation accompanying the device for SCSI ID
address information.

2–12

Understanding SCSI IDs

Brief
Introduction to
SCSI IDs

For proper communication between your system and all the
devices installed in the system unit, each device must have a
unique SCSI address setting (ID). SCSI settings are determined
by the position of the electrical switches or jumpers located on
the back or side of the device. Switches can be either up or
down; jumpers can be either attached or removed.
If you are replacing a device, be sure the SCSI ID setting on the
new device is unique. Only one SCSI ID (0—6) is allowed per
device. The SCSI ID 7 is reserved for the SCSI controller.
If you order a new drive separately from the system, you will
receive an installation card. Refer to this card for the exact
location of the switches or jumpers on the drive you order.
A replacement drive is often set to the same address as the drive
it replaces. Use the show device command on the replacement
drive to confirm it’s address.

Preparing Your System
Overview

Before you install or remove any internal option, you must take
the following steps to prevent loss of data or damage due to
static discharge. Refer to the appropriate section of this chapter
for details of each action.
Step

Action

Back up your files.

Shut down all software following the instructions in your
software documentation.

At the console prompt (>>>), enter the show mem,
show device, and show config commands. Record the
displayed information.

At the console prompt (>>>), enter the set auto_action

halt command.

2–13

Preparing Your System

Step

Action

Turn off the monitor and all peripheral devices such as
printers, modems and expansion boxes.

Turn off the system unit.
Warning
Before you unplug the power cord and open the system
unit, wait about one minute. This allows time for the
power supply capacitors to safely discharge.

Shut Down
Networked
Systems

Shut Down
Operating
Systems

2–14

Remove all cables, loopbacks, terminators and power
cords from the back of the system unit and monitor.

Wait a few minutes for the monitor to discharge.

Move the monitor away from the system unit (this
requires two people).

Remove the system unit cover.

Attach the antistatic wrist strap.

Procedures for shutting down your software vary depending on
how your system is networked.
If you are

See your

Networked, or part of a cluster

System manager

Not networked, nor part of a cluster

Software documentation

Not sure if you are part of a network

System manager

For information on how to shut down your operating system,
refer to your operating system documentation. These manuals
and their order numbers are listed in Appendix D.

Preparing Your System

Shutting down your system may require knowledge of file back
up and operating system shutdown procedures. The following
privileges may be required:
•

For the OpenVMS AXP operating system, the shutdown
procedure usually requires certain software privileges.

•

For the DEC OSF/1 AXP operating system, you may require
superuser privileges to shutdown the system.

If you do not have the required system privileges, ask your
system manager for assistance.

Operating
System

Shutdown Command

Documentation Titles

OpenVMS
AXP

@sys$system:shutdown

System Management,
Vol. 1A, Guide to Starting
Up and Shutting Down the
System

DEC OSF/1
AXP

shutdown -h now

Guide to System
Administration

Note
Typing shutdown -r now or reboot at the console prompt
(>>>) reboots your system.

Turning Off
Equipment:
Task Overview

Shutting down the hardware involves the following steps:
Step

Action

Turn off (O) all expansion boxes.

Turn off (O) all peripheral devices (such as printers).

Turn off (O) the monitor. (Turning off the system does not
automatically turn off the monitor).

Turn off (O) the system by pressing the On/Off switch
on the back of the system unit to the off (O) position, as
shown in Figure 2–5.

2–15

Preparing Your System

Figure 2–5 Turning Off the System Unit

ISD

MLO-009747

CAUTION:
Before
Disconnecting
a Monitor

After you turn off the system and before you disconnect the
power cord from the monitor and system unit, wait about one
minute to allow time for the power supply capacitors to safely
discharge.
To disconnect the monitor:
Step

Action

Disconnect the power cords from the monitor and system
unit.

Disconnect the monitor video cable from the rear of the
monitor and system unit.

Move the monitor away from the top of the system unit.
Warning
The monitor can weigh up to 75 lbs. (34 kg). To avoid
possible injury, two people are required to move the
monitor.

2–16

Preparing Your System

Remove the
System Unit
Cover

To remove the system unit cover, refer to Figure 2–6 and follow
these steps:
Step

Action

Remove the two Phillips screws on the right and left back
corners of the system unit cover .

Place the system unit so that the back edge extends over
the edge of your table or desk.

Place your thumbs on the two black caps
on the back of
the system unit, and at the same time, place your fingers
under the cover’s bottom edge. Press down with your
thumbs while you press up against the cover’s edge with
your fingers to lift the cover.

Note
A significant amount of pressure is required to lift the
cover. You may want to cushion your fingers.

Pivot the cover on the tabs that run along the system
unit’s front edge.

Pull the system unit cover up and away until it releases
from the tabs.

Place the cover safely aside.

2–17

Preparing Your System

Figure 2–6 Removing the System Cover

2
0

ISD

MLO-010097

WARNING:
Thermal
Problems

Do not run the system for an extended period of time (15
minutes) with the cover removed. Prolonged use of the system
without the cover may cause thermal problems.

CAUTION:
Static
Discharge

Do not touch anything inside the system unit until you attach
the antistatic wrist strap included with your system or option
shipment. Always use this strap when you work inside the
system unit to avoid damage to internal devices from static
discharge. Digital also recommends that you use an antistatic
mat.
To attach the antistatic wrist strap, shown in Figure 2–7, follow
the steps printed on the envelope containing the strap. Save this
envelope for storing the strap.

2–18

Preparing Your System

Figure 2–7 Attaching the Antistatic Wrist Strap

MLO-010098

Identify the
Internal Power
Cable

Each connector on the internal power cable must be connected to
the corresponding power port on the back of each drive.
The internal power cable and connectors are shown in
Figure 2–8.
Figure 2–8 Power Cable and Connectors

MLO-009791

! Connects to the system module.
" Connects to a fixed disk drive, if any.
# Connects to a second fixed disk drive or removable-media
drive, if any.

$ Connects to the removable-media drive only.
2–19

Preparing Your System

Identify the
Internal SCSI
Cable

Each connector on the internal SCSI cable must be connected
to the SCSI port on each drive. The internal SCSI cable and
connectors are shown in Figure 2–9.
Figure 2–9 SCSI Cable and Connectors

1
2
3

4
MLO-009792

! Connects to the system SCSI bus.
" Connects to a fixed disk drive in position 1, if any.
# Connects to a fixed disk drive or a removable-media drive in
position 2, if any.

$ Is a SCSI bus terminator.

2–20

Identifying and Locating Options

Identifying and Locating Options
Figure 2–10 shows the location of memory modules, fixed disk
and removable media devices, and TURBOchannel modules (if
any) in the DEC 3000 Model 300 Series AXP systems.
Figure 2–10 Device Positions
2

5
MLO-009798

! Power supply
" CPU module with heat sink
# TURBOchannel option module installed in slot 0 (slot 1 is
shown empty)

$ Memory modules
% Device position 2
& Device position 1, with a fixed disk installed

2–21

Removing and Installing a Removable-Media Drive

Removing and Installing a Removable-Media Drive
Antistatic
Precautions

Do not remove or install any internal option without attaching
the antistatic wrist strap to your wrist and the system. Refer to
the caution statement associated with Figure 2–7.

Remove a
Removable-Media
Drive

To remove a removable-media drive from position 2, perform the
following steps:

2–22

Step

Action

Be sure all system preparation tasks are complete. Refer
to Preparing Your System for additional information.

Record, for later use, the SCSI ID setting of the drive
you remove. Use the show device command (Chapter 4)
before you remove the device.

Unlock the drive from the base of the system unit by
releasing the latch on the left side of the drive. (See
Figure 2–11.)

Disconnect the internal power and SCSI cables.

Lift up and slide the drive to the left. (See Figure 2–11.)

Insert the filler panel and shield, as described in the
section entitled Install the Filler Panel and Metal Shield
later in this chapter.

Removing and Installing a Removable-Media Drive

Figure 2–11 Removing a Removable-Media Drive

MLO-010237

Removable-Media
Drive SCSI
Switch Settings

The setting of the SCSI switches on the removable-media drive
enables the system to recognize the drive. Normally, the SCSI
address for removable-media drives should be preset to a SCSI
ID of 5.
However, if your drive is not preset to SCSI ID of 5, you need to
change it only if the drive’s setting is already taken by another
device installed in your system.
If you do change the setting, use a small pointed instrument
(such as the tip of a ballpoint pen) to move the switches. Do not
use a pencil; graphite particles can damage the switches. Refer
to Appendix B for an illustration of SCSI ID settings.

2–23

Removing and Installing a Removable-Media Drive

Install the Filler
Panel and Metal
Shield

After you remove a removable-media drive, look for a plastic
filler panel and metal shield that came in your shipment (see
Figure 2–12). To fill in the space that the front of the drive
occupied:
Step

Action

Insert the filler panel
from the outside into the
open slot on the system unit cover bezel, as shown in
Figure 2–12.

Insert the metal shield
from the inside into the
open slot on the system unit cover bezel, as shown in
Figure 2–12.

Figure 2–12 Installing the Shield and Filler Panel

MLO-010570

Remove the
Filler Panel and
Metal Shield

2–24

If you did not order a removable-media drive from the factory
when you placed your order with Digital, and are installing one
now, you must first remove the plastic filler panel and metal
shield from the front bezel on the system unit cover.

Removing and Installing a Removable-Media Drive

To remove these items:
Step

Action

Release the filler panel from the metal shield by gently
pressing on the filler panel tabs and pushing outward.
in Figure 2–13.
See

Store the shield and filler panel for future use.

Figure 2–13 Removing the Shield and Filler Panel

MLO-010273

Connect the
Drive Cables

To cable the drive, hold it outside the system unit before you
install it, follow these steps, and refer to Figure 2–14:
Step

1
2

Action

!
Connect the small connector " on the power cable to the

Connect the large connector
on the power cable to the
power port on the back of the RX26 drive.
smaller power port on the back of the drive.

2–25

Removing and Installing a Removable-Media Drive

Step

Action

Connect the internal SCSI cable with the key facing up
to the SCSI port on the back of the drive. The power
cable must be under the SCSI cable.

Tuck the SCSI terminator , located at the end of the
SCSI cable, in the mounting bracket under the RX26
drive.

Figure 2–14 Cabling the RX26 Drive

1
2

4
MLO-009745

Install a
Removable-Media
Drive

2–26

To install a removable-media drive, reverse the steps in the
removal procedure as follows:
Step

Action

Record the SCSI ID setting for future use. Refer to
Chapter 4, the show device command.

Be sure all system preparation tasks are complete. See
the section entitled Preparing Your System.

Be sure the cables are all connected.

Removing and Installing a Removable-Media Drive

Format a
Diskette

Step

Action

Insert the mounting bracket tabs on the right side of the
drive into the slots on the base of the system unit.

Press down on the drive.

Lock the drive in place, by sliding the latch back. (See
Figure 2–11).

After you have installed a removable-media drive, you may
wish to format a diskette before you use it. You do this with
the Diskette Formatter Utility. Refer to Diskette Formatter
Utility Example in Chapter 4 for a description and example of
the test scsi format command that runs this utility.

Removing and Installing a Fixed Disk Drive
Antistatic
Precautions

Do not remove or install any internal option without attaching
the antistatic wrist strap to your wrist and the system. Refer to
the section entitled CAUTION: Static Discharge.

Device
Configuration

Your system may arrive configured with either an RZ25, RZ25L,
RZ26 or RZ26L fixed disk drive. The installation instructions
in the following sections picture an RZ25 or RZ26 drive; the
instructions also apply to the RZ25L, RZ26L and RZ28 fixed disk
drives.

Remove a
Fixed Disk

To remove a fixed disk drive, perform the following steps and
refer to Figure 2–15:
Step

Action

Be sure all system preparation tasks are complete. Refer
to the section entitled Preparing Your System for more
information.

2–27

Removing and Installing a Fixed Disk Drive

Step

Action

Unlock the drive by pushing the lock tab back, as shown
in Figure 2–15.

Disconnect the internal power and SCSI cables from the
back of the drive.

Tilt the drive to the left and lift it out of the system.

Figure 2–15 Removing a Disk Drive

MLO-010244

2–28

Removing and Installing a Fixed Disk Drive

Note
If you are replacing a drive with a third-party drive,
remove the mounting bracket from the drive, as shown in
Figure 2–16.

Figure 2–16 shows the removal of the mounting bracket from
a fixed disk drive. Remember, this is necessary only if you are
replacing the drive with a third-party drive, or if you need to
gain access to the SCSI ID settings.
Figure 2–16 Removing the Mounting Bracket from a Disk Drive

MLO-010240

2–29

Removing and Installing a Fixed Disk Drive

Cabling for
Drive in
Position 1

To cable the drive that you are installing in position 1, follow
these steps and refer to Figure 2–17:
Step

Action

Connect the large power connector
on the power cable
to the power port on the back of the RZxx drive.

Connect the internal SCSI cable
to the back of the disk
drive. Be sure the key (the notch in the center of the
cable connector) is facing up. The power cable
must be
under the SCSI cable.

Lay the terminator, located at the end of the SCSI cable,
and the remaining length of power cable in the empty
position 2.

Figure 2–17 Cabling a Drive in Position 1

3
MLO-010660

2–30

Removing and Installing a Fixed Disk Drive

Cabling for
Drive in
Position 2

To cable the drive that you are installing in position 2, follow
these steps and refer to Figure 2–18:
Step

Action

Connect the large power connector
on the power cable
to the power port on the back of the RZxx drive.

Connect the internal SCSI cable
up, to the back of the disk drive.

Tuck the SCSI terminator , located at the end of the
SCSI cable, in the mounting bracket under the RZxx drive
in device position 2.

", with the key facing

Figure 2–18 Cabling a Drive in Position 2

3
MLO-010242

2–31

Removing and Installing a Fixed Disk Drive

Install a Disk
Drive

Fixed Disk
Drive SCSI
Jumper
Settings

To install a fixed disk drive, reverse the steps in the removal
procedure, as follows:
Step

Action

Record the SCSI ID setting for future use. Refer to the
next section and Chapter 4, the show device command.

Be sure all system preparation tasks are complete
before opening the system. Refer to the section entitled
Preparing Your System.

Be sure all cables are connected.

Insert the mounting bracket tabs on the left of the
drive into the slots on the base of the system unit. (See
Figure 2–15.)

Press down on the drive.

Lock the disk drive in place by pulling the lock tab
forward.

When a fixed disk drive arrives from the factory, all SCSI
jumpers may be attached to prevent loss during shipment.
Digital’s recommended setting for a fixed disk drive is 1, 2, or 3.
However, if the drive is preset to a SCSI ID other than 1, 2, or
3, you need not change it unless that setting is already taken by
another device installed in your system.
To change the setting, choose one that is not in use, and carefully
move the jumpers using tweezers or another small tool. If you
remove any jumpers, save them, you may need them later. Refer
to Appendix B for the device you are installing.

Verify Disk
Blocks

After you have installed a disk, you may wish to verify that
all blocks on that disk can be read. You do this using the Disk
Verify utility. Refer to Chapter 4 for a description and example
of the test scsi verify command that runs this utility.

Erase a Fixed
Disk

You may also need to erase a fixed disk if you are installing a
previously-used one. Do this using the Erase Disk Utility. Refer
to Chapter 4 for a description and example of the test scsi
erase command that runs this utility.

2–32

Removing and Installing a Memory Module

Removing and Installing a Memory Module
Antistatic
Precautions

Do not remove or install any internal option without attaching
the antistatic wrist strap to your wrist and the system. Refer to
the section entitled CAUTION: Static Discharge.

Memory Module
Introduction

A memory module is known as a Single Inline Memory Module
(SIMM). Two types of memory modules are supported on
the DEC 3000 Model 300 Series AXP system, each type has
components on both sides of the module:
•

An 8-megabyte memory module (part number MS16–BA)
that allows from 16 to 64 megabytes of memory to be added
in 16-megabyte increments

•

A 32-megabyte memory module (part number MS16–DA)
that allows from 64 to 256 megabytes of memory to be added
in 64-megabyte increments

•

The two memory module types may be mixed in your memory
configuration, as long as the memory configuration guidelines
are followed.

Your DEC 3000 Model 300 Series AXP system module includes
eight memory module connectors.
Note
Always handle memory modules by their edges to avoid
electrical damage and contamination of the module pins
and connectors.
It may be necessary to remove a device before you add
the last SIMM.

2–33

Removing and Installing a Memory Module

Memory
Configuration
Rules

When mixing 8– and 32–megabyte SIMMs, follow these rules:
•

Always add the 32–megabyte SIMMs first.

•

Add 32–megabyte SIMMs in pairs, 64 to 256 megabytes in
total.

•

Add 8–megabyte SIMMs in pairs, 16 to 64 megabytes in
total.

•

Always add SIMMs in pairs, no individual modules, 2, 4, 6 or
8 SIMMs in the system.

•

Add SIMMs starting at slot 0 (see Figure 2–19).

•

No empty slots between pairs of SIMMs.

The following example is provided for information only. For a
system that requires 160 megabytes of memory, follow these
steps:
1. Add one 32-megabyte SIMM (MS16-DA) to slots 0, 1, 2, and
3, for a total of 128 megabytes of memory.
2. Add one 8-megabyte SIMM (MS16-BA) to slots 4, 5, 6, and 7,
for a total of 32 megabytes of memory.
Figure 2–19 160 MB Memory Configuration

MS16-DA

Slot
0

MS16-DA

MS16-BA

7
MLO-010947

2–34

Removing and Installing a Memory Module

Adding 8–MB
SIMMs

To increase your system’s memory capacity from a minimum of
32 megabytes to 48 or 64 megabytes, add two or four 8-megabyte
SIMMs. The SIMMs are identified by counting ten chips on the
top row
and four chips on the bottom row
in Figure 2–20.
There are fourteen chips on one side of the module, but only 10
chips on the other side of the module. Note that the 8 megabyte
chips on the top row are smaller than the 32-megabyte chips
shown in Figure 2–21.

Figure 2–20 8-Megabyte SIMM
1

2
MLO-010945

Adding 32–MB
SIMMs

To increase your system’s memory capacity from a minimum
of 64 megabytes to 128 or 256 megabytes, add four or eight
32-megabyte SIMMs. The SIMMs are identified by counting
eight chips on the top row , and four chips on the bottom row
in Figure 2–21. There are 12 chips on each side of the module.

Note
32-megatybe chips are larger than 8-megabyte chips.

Figure 2–21 32-Megabyte Simm
3

4
MLO-010946

See the section entitled Identifying and Locating Options and
Figure 2–10 for additional information.

2–35

Removing and Installing a Memory Module

Remove
Memory

To remove or replace a memory module, refer to Figure 2–22 and
perform the following steps:
Step

Action

Be sure all system preparation tasks are complete. Refer
to section entitled Preparing Your System for additional
information.

Remove memory beginning with the module closest to
device position 2. (See Identifying and Locating Options
and Figure 2–10 for the location of device position 2.)
Release the sprint clips

# at both ends of the module.

Hold the module by its edges, tilt the module forward,
and pull up and out. .

Figure 2–22 Removing and Installing a Memory Module

3
1

MLO-010100

2–36

Removing and Installing a Memory Module

Install Memory

To install memory, reverse the steps in the removal procedure, as
follows, and refer to Figure 2–22:
Step

Action

Be sure all system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

away from
Hold the module at an angle with the notch
the power supply and the module pins facing the system
module.

Firmly push the module into the connector and stand the
module upright .

Make sure that the memory module snaps into the spring
clips at each end of the connector .

Continue adding modules, filling available connectors in
succession.

Note
To remove a memory module other than the last one,
release the spring clips of all memory modules starting
with the last one and progressing to the memory module
to be removed. The released memory modules may be
tilted out of the way, but not completely removed. After
removing the memory module in question and replacing
it with a new one, stand the remaining module(s)
upright, and snap the module into the metal retainers at
each end of the connector.

2–37

Removing and Installing a TURBOchannel Option (For Models 300/300X/300LX Systems)

Removing and Installing a TURBOchannel Option (For
Models 300/300X/300LX Systems)
Definition of
TURBOchannel

A TURBOchannel bus is a high-performance interconnection
that allows you to support up to two monitors and use a
variety of Digital options, third-party graphics, multimedia,
and communications options. The TURBOchannel bus is a
synchronous asymmetrical I/O channel that connects option
modules to the system module.

Multiscreen
Capability

Using a TURBOchannel module you can connect two (or more)
monitors: one to the built-in HX graphics module, and an
additional one (or two) to the HX or TX TURBOchannel modules
that you install. When you connect an additional monitor to the
TURBOchannel module in slot 0 or slot 1, it is the first console
device detected on the TURBOchannel, and therefore becomes
the console device.

2–38

Removing and Installing a TURBOchannel Option (For Models 300/300X/300LX Systems)

Supported
TURBOchannel
Options

Table 2–4 lists the TURBOchannel options you can add to your
DEC 3000 Model 300/300X/300LX system:

Table 2–4 TURBOchannel Options
TURBOchannel Option

Customer Order
Number

Field Service Part
Number

HX 2D graphics accelerator, 1280 x 1024, 72 Hz

PMAGB–BE/BF

54–21143–03

TX 2D 24-plane color frame buffer (nonaccelerated),
1280 x 1024, 72 HZ (DEC OSF/1 AXP systems only)

PMAGB–JA/JB

30–35790–02

PXG+1 3D 8-plane Z-buffer, low-to mid-range,
1280 x 1024, 72 HZ

PMAGB–DA/DB

54–20116–AA

PXG+1 3D 24-plane Z-buffer,2 low-to mid-range,
1280 x 1024, 72 HZ

PMAGB–EA/EB

54–20185–05

ZLX–M1, 24-plane, 3D, Z-buffer (DEC OSF/1 AXP
systems only)

PMAGC–AA

8-to-24-plane upgrade for PXG+ (requires Digital
Services installation)

PMAG–GB

37–01250–03

24-bit Z-buffer2 option for 8-plane PXG+ systems

PMAG–HA

8-bit: 54–20410–AA
16-bit: 54–20352–AA

Denali P310 3D graphics, P510 3D graphics, and
V620 3D graphics, (DEC OSF/1 AXP systems only)

PEXGA–AA/BA
/CA

Dual SCSI adapter

PMAZB–CA

54–21833–01

Dual SCSI adapter with fast SCSI support (8-bit,
5-MB/sec or 10-MB/sec ports)

PMAZC-AA

54–21833–03

AUI (Thickwire) Ethernet module

PMAD–AA

54–19874–01

FDDIcontroller 700 (fiber optic) interface

DEFTA–FA

Sound and Motion J300 multimedia option

AV300–AA

Prestoserve option

DJ–30APS–AA

Sync com option

DSYT-1

UTP (Twisted Pair) to 10BASE-2 (ThinWire)
adapter

DETTR–AA/AB

UTP (Twisted Pair) to AUI (ThickWire) adapter

DETTR-BA/BB

70–30284–01

1 3D PXG+ options do not include DEC PHIGS Runtime license or DEC Open3D license (required for 3D

graphics); it must be ordered separately. One 3D option is supported per system; two TURBOchannel slots
required.
2 A Z-Buffer improves 3D graphics performance.

2–39

Removing and Installing a TURBOchannel Option (For Models 300/300X/300LX Systems)

Antistatic
Precautions

Do not remove or install any internal option without attaching
the antistatic wrist strap to your wrist and the system. Refer to
the section entitled CAUTION: Static Discharge earlier in this
chapter for additional information.

Remove a
TURBOchannel
Option

To remove a TURBOchannel option, refer to Figure 2–23 and
follow these steps:

2–40

Step

Action

Be sure the system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

Disconnect external cables to the TURBOchannel slots at
the back of the system unit.

Remove the two screws from the two posts at the back of
a single-width TURBOchannel module and four screws
from four posts at the back of a double-width module.
These screws secure the TURBOchannel module to the
system module.

Remove the two screws from a single-width module and
four screws from a double-width module on the back of
the system unit that hold the TURBOchannel module in
the connector slot. Save the screws for step 6.

Lift the single-width or double-width TURBOchannel
option up off the system connector and out toward the
front of the system unit. This may require extra effort, as
the TURBOchannel options are installed tightly.

Insert one or two filler plates, depending on the width
of the module, into the TURBOchannel slot openings,
and attach with the two or four screws from step 4. See
Figure 2–24.

Removing and Installing a TURBOchannel Option (For Models 300/300X/300LX Systems)

Figure 2–23 Removing and Installing a TURBOchannel Option

MLO-009783

2–41

Removing and Installing a TURBOchannel Option (For Models 300/300X/300LX Systems)

Install a
TURBOchannel
Option

To install a TURBOchannel option, reverse the removal
procedure, and refer to Figure 2–23 as follows:
Step

Action

Be sure the system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

Remove the screws from the back of the system unit that
hold the filler plate or plates (depending on the width
of the module) in the TURBOchannel slot, as shown in
Figure 2–24. Save the screws to use in step 6. Save
the filler plate or plates in case you remove the option.
Reinsert the filler plate or plates when the option is
removed in order to maintain the EMI and thermal
integrity of the system.

Figure 2–24 Removing the TURBOchannel Filler Plate

MLO-009749

2–42

Removing and Installing a TURBOchannel Option (For Models 300/300X/300LX Systems)

Insert the TURBOchannel option connector into the open
slot at the back of the system unit.

Firmly press the module onto the TURBOchannel
connector. This may require some extra effort, as
TURBOchannel options fit tightly.

Insert the two or four screws (that come with the option)
through the holes on the TURBOchannel module and into
the posts on the system module. Screw the module down
to secure the option to the system module.

Reinsert the screws (from step 2) to the back of the
system unit to hold the TURBOchannel option in place.

Connect external cables to the TURBOchannel option
at the back of the system unit. Refer to the option
documentation for proper cabling procedures.

2–43

Removing and Installing the CPU Module

Removing and Installing the CPU Module
Antistatic
Precautions

Remove the
CPU Module

To remove the CPU module, refer to Figure 2–25 and perform
the following steps:
Step

Action

Be sure the system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

Loosen the four captive (nonremovable) screws that hold
the module in place: two at the back corner edges of the
module and two at the center edges.
may remain attached to the
The four support posts
system module during CPU removal. However, they must
be removed before you remove the system module.

Warning

Do not use the aluminum heat sink ( in Figure 2–25)
as a handle. This part of the CPU module is very hot if
the system has recently been running.

2–44

Lift the module up off the system module connector and
out.

Removing and Installing the CPU Module

Figure 2–25 Removing the CPU Module
1

2
2

MLO-009788

Install the CPU
Module

To install the CPU module, reverse all steps in the removal
procedure and refer to Figure 2–25, as follows:
Step

Action

Be sure the system preparation task are complete. See
the section entitled Preparing Your System for more
information.

Holding the module by its edges, set it onto the four posts
to which it attaches . (Do not handle the module by the
aluminum heat sink .) Push down on the connector end
of the module to ensure a good connection.

Tighten the four captive screws to the posts: two at the
back corner edges of the module, and two at the center
edges.

"
!

2–45

Removing and Installing the Power Supply

Removing and Installing the Power Supply
Antistatic
Precautions

Remove the
Power supply

To remove the power supply, refer to figures 2–26 and 2–27, and
perform the following steps:

2–46

Step

Action

Be sure the system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

Squeeze the plastic tab on the front of the power supply
cable connector and pull up to disconnect the cable from
the system module. See Figure 2–26.
If any drives are installed, disconnect the cable from these
drives as well.

Removing and Installing the Power Supply

Figure 2–26 The Power Supply Cable

2
MLO-010746

Each numbered component is identified as follows:

! SCSI cable
" Power cable
# System module
$ Power supply
% Device in position 1
& Device in position 2

2–47

Removing and Installing the Power Supply

Step

Action

Remove the two mounting screws: one located at the
bottom front of the power supply on a metal tab facing
the inside of the system unit; the other located at the
back of the system unit next to the on/off switch. See
Figure 2–27.
Note
Do not confuse the back mounting screw with the back
screw of the power supply cover.

Slide the power supply toward the front of the system
unit, raise the back of the power supply above the back of
the system unit, and slide the power supply out.

Figure 2–27 Removing the Power Supply

MLO-009794

2–48

Removing and Installing the Power Supply

Caution: Shield

It is possible for the metal shield that is attached to the inside
of the system unit to come loose when you remove the power
supply. This shield is located at the back of the system unit and
encircles the opening through which the power supply sockets
extend (see Figure 2–28). If the shield comes loose, be sure to
reinstall it.
Figure 2–28 Reinstalling the Metal Shield

MLO-010728

Install the
Power Supply

To install the power supply, reverse all steps in the removal
procedure and refer to Figure 2–27, as follows:
Step

Action

Be sure the system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

Insert the tab on the bottom front of the power supply
into the slot on the base plate of the system unit.

Push the power supply toward the back of the system
unit.

Insert and tighten the two mounting screws.

Connect the power supply cable connector to the system
module, and then a connector to each drive, if any are
installed.

2–49

Removing and Installing the System Module

Removing and Installing the System Module
Antistatic
Precautions

Do not remove or install any internal option without attaching
the antistatic wrist strap to your wrist and the system. Refer to
the section entitled CAUTION: Static Discharge.

Remove the
Ethernet ROM

In the event that you must replace the system module, be aware
that you can retain your system’s original Ethernet address, by
transferring the Ethernet ROM from the failing system module
to the new system module.
To remove the Ethernet ROM from the failing system module,
refer to Figure 2–29 and perform the following steps:
Step

Action

Be sure the system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

Locate the Ethernet ROM on both the new and failing
system modules. The ROM is a 16-pin socketed chip; it
is labeled
in Figure 2–29. Note the orientation of the
ROM; there is a ROM key (a small notch) at the end of
the chip close to the memory modules.

Remove the Ethernet ROM from the replacement (new)
system module using a chip puller or a small flat-head
screwdriver. Put this ROM aside. Lift the chip gradually,
loosening first one end of the chip and then the other.
CAUTION
When you remove an Ethernet ROM, be very careful not
to bend the pins on the chip. The pins are fragile and
must be intact for you to add the Ethernet ROM to the
replacement system module.

2–50

Removing and Installing the System Module

Step

Action

Remove the Ethernet ROM from the failing system
module using a chip puller or a small flat-head
screwdriver. Lift the chip gradually, loosening first one
end of the chip and then the other.

Make sure the pins on the Ethernet ROM are straight
after you remove the ROM from the failing system
module. If the pins are bent, carefully straighten them.

Transfer and add the chip (that you just removed from
the failing system module) to the replacement system
module, installing it in the vacant Ethernet ROM socket.
Make sure you place the chip in the vacant socket in the
same orientation as it was in when you removed it from
the failing module. Make sure the pins on the Ethernet
ROM are properly aligned in the socket before pushing
the ROM into place.

Take the Ethernet ROM you removed from the new
system module and insert it in the vacant socket on the
failing system module.

Figure 2–29 Removing the Ethernet ROM

MLO-012103

2–51

Removing and Installing the System Module

Remove the
System Module

2–52

To remove the system module, refer to Figure 2–30 and perform
the following steps:
Step

Action

Be sure the system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

Remove the TURBOchannel modules (Models 300/300X
/300LX only), see Figure 2–23.

Remove the TURBOchannel filler plates, see Figure 2–24.

Remove the power supply. See Figure 2–27.

Remove the CPU module. See Figure 2–25. The four
support posts may remain attached to the system module
during CPU removal. However, they must be removed
before you remove the system module.

Remove the drives, if any. Disconnect the SCSI cable from
the system module.

Remove the memory modules (SIMMs), see Figure 2–22.

Unscrew the four TURBOchannel posts labeled
Figure 2–30. (Models 300/300X/300LX only)

Unscrew the four CPU module support posts labeled
Figure 2–25.

Remove the two screws labeled

Before you remove the system module, remember to swap
the Ethernet chip, that is, move the chip from the old
module to the new module.

Gently pry the system module off the three standoffs,
labeled
in Figure 2–30, and pull the module toward
the front of the system unit (away from the connector/slot
openings on the bottom enclosure).

" in

# in Figure 2–30.

Removing and Installing the System Module

Note
After you remove the system module, you will see a loose
metal plate. Be sure this plate is in place when you
reinstall the system module. (See Figure 2–30.)

Figure 2–30 Removing the System Module

2
3

MLO-009781

2–53

Removing and Installing the System Module

Install the
System Module

To install the system module, reverse all steps in the removal
procedure and refer to Figure 2–30, as follows:
Step

Action

Be sure the system preparation tasks are complete. See
the section entitled Preparing Your System for more
information.

Insert the connectors on the system module through
the openings on the bottom enclosure. Seat the system
and push down gently.
module over the standoffs

2–54

!
Add the two screws labeled # in Figure 2–30.

" in

Screw the four TURBOchannel posts in place, see
Figure 2–30.

Add the four CPU module support posts, see
Figure 2–25.

Install the memory modules (SIMMs), see Figure 2–22.

Install the drive(s). Refer to the sections entitled
Removing and Installing a Removable-Media Drive and
Removing and Installing a Fixed Disk Drive.

Install the CPU module. Refer to the section entitled
Install the CPU Module.

Install the power supply. Refer to the previous section
entitled Install the Power Supply.

Connect the power cable and the internal SCSI cable to
the system module and the drives. See Figure 2–26.

Install the TURBOchannel modules and/or the option slot
filler plates. See figures 2–23 and 2–24.

Connect all cables to the back of the system unit.

" in

Restoring the System

Restoring the System
Save the Wrist
Strap

Replace the
System Unit
Cover

After you have installed all the internal options you want to
install at this time, or have completed maintenance, remove and
save the antistatic wrist strap as follows:
Step

Action

Remove the copper end of the strap from the system unit.

Cover the sticky surface with the protective paper you
removed earlier.

Unwrap the strap from your wrist.

Refold the strap and save it in the envelope it came in for
future use.

To replace the system cover, see Figure 2–31 and follow these
steps:
Step

Action

Align the lip on the front inside edge of the cover
with
the four tabs along the front edge of the system unit .
Position the cover so that the lip fits over the tabs.

"
Maintain a slight pressure on the front of the cover # as
you lower it.
Be sure the sides of the cover fit over the outside of the
bottom enclosure.

Press down firmly on the edges of the cover.

Replace the two screws on the back of the system unit
that hold the cover in place .

2–55

Restoring the System

Figure 2–31 Replacing the System Cover

ISDN

4
MLO-010101

2–56

Restoring the System

Reconnect and
Restart the
System

To reconnect your system, follow these steps:
Warning
The monitor can weigh up to 75 lbs. (34 kg). To avoid
possible injury, two people are required to move the
monitor.

Step

Action

Return your monitor to its former position.

Connect the following components:
a. Monitor and system power cords.
b. Monitor video and mouse/keyboard cables.
c.

Network cable and optional adapter.

d. System power cord to a grounded outlet.
3

Turn on the following components:
a. Peripheral devices, such as a printer, modem, or
expansion box.
b. Monitor and system unit.

Note
If you do not turn on SCSI expansion boxes before you
turn on the system unit, the system will not recognize
the devices mounted in the SCSI expansion boxes.

Figure 2–32 shows the connections between the system unit,
monitor, mouse and keyboard, network, and grounded outlet.

2–57

Restoring the System

Figure 2–32 Reconnecting the System

ISDN

MLO-010603

When you turn on the system successfully, you should see a
display similar to that shown in Figure 2–33. This display is
similar to the screen displayed when you enter the show config
console command.

2–58

Restoring the System

Figure 2–33 System Display After Restoring Your System
DEC 3000 - M300
Digital Equipment Corporation
System conducting power up tests
----------------------------------------------------DEVNAM
DEVSTAT
------------CPU
OK KN16-AA - Vx.x-Syyy-Izzz - sx.x - DECchip 21064 P3.0
ASIC
OK
MEM
OK 32MB
NVR
OK
CXT
OK
SCC
OK ptr(0) = Present keybd(2) = Present
NI
OK Ethernet Address: 08-00-2B-2F-F8-E6 , TENBT
SCSI
OK
ISDN
OK
----------------------------------------------------System power up OK.
>>>

Test the System

To confirm that the options are connected correctly:
Step

Action

Enter the show device command at the console prompt
to display the status of the drives, as explained in the
section entitled Recording Information Before Making
Changes at the beginning of this chapter.
From this display, you can:
•

Compare the new display with the display you viewed
when you prepared the system. You should see the
new drive, and the drive that was in the system before
you made the addition. If the new drive is not in the
list, it has not been installed properly.

•

Verify that devices are set to the correct SCSI settings
(ADDR) so that all devices can be accessed.

•

Verify that there are no error messages. If there are
error messages, write them down. See Chapter 8.

2–59

Restoring the System

Step

Action

Enter the show device command at the console prompt to
display a list of the devices in your system. If you have a
DEC 3000 Model 300/300X/300LX system, this command
will also display a list of your TURBOchannel modules.

Enter the show mem command at the console prompt
to verify that installation of additional memory was
successful.

At the console prompt (>>>), enter the set auto_action

boot command.
If your system has the OpenVMS AXP or the DEC OSF/1
AXP operating system software already installed, enter
B at the console prompt, and press the Return key to
automatically start your system. If you do not already
have operating system software, refer to your software
documentation.

Record
Messages

If any messages are displayed, write them down in case you need
to contact your Digital service representative.
If you see error messages during the startup or show config
procedure, check the following:
•

Are all cables inside and outside the system properly
connected?

•

Are all modules fully seated in their connectors?

•

Are SCSI switches and jumpers set correctly? (No two
devices should have the same SCSI ID setting.)

•

Are any SCSI ID addresses set to ID 7? The system SCSI
controller uses SCSI ID address number 7.

If gaining entry to the system unit is required for checking
cables and modules, refer back to the section entitled Preparing
Your System.
If you continue to see error messages, refer to Chapter 7 or
Chapter 8, or contact your Digital service representative.

2–60

3
Connecting External Options
Chapter Overview
In This Chapter

This chapter covers the following topics:
•

Headset

•

Tablet

•

Printers

•

Modems

•

Expansion Boxes

•

Compact Disc Drive

•

External Device Connections

Future Options

The previous list represents the external options that are
available when the DEC 3000 Model 300 Series AXP System
first ships. Other options may be available later.

For More
Information

For information on the installation and use of these options,
consult the documentation accompanying the option. To
purchase an option, contact your Digital sales representative.

3–1

Headset

Headset
Purpose
You can use a headset (VSXXX-JA) as an
alternative to a telephone handset to input
and output audio data. The headset includes
a microphone for voice input, a cord with a
clothing clip, and a quick-disconnect connector
that allows you to move away from your
system without removing the headset. The
headset is compatible with both the OpenVMS
AXP and DEC OSF/1 AXP operating systems.

Tablet
Purpose

3–2

You can use either an 11-by-11-inch tablet
with a puck and pen pointer (VSXXX-AB)
or the standard mouse to position the
cursor on your monitor screen.

Printers

Printers
Recommended
Printers

Many printers, including third-party plotters, can be used with
your DEC 3000 Model 300 Series AXP system. See your Digital
sales representative for a list of the recommended printers.
Consult the documentation that came with the printer to unpack
the printer and set the baud rate.

Modems
Purpose

A modem is a device that converts computer signals to signals
that can be sent over a telephone line. Modems are typically
used for communications in large networks, such as wide area
networks (WANs).
A variety of modems can be used with your DEC 3000 Model
300 Series AXP system, the baud rate and model is specified
in the operating system documentation. See your Digital sales
representative for a list of the recommended modems.
Consult the documentation that came with the modem to unpack
the modem.

3–3

Expansion Boxes

Expansion Boxes
Available
Expansion
Devices

Expansion boxes allow you to add up to five additional
industry-standard SCSI devices external to your system.
A few of the devices you can add are the RRD42, RZ25,
RZ25L, RZ26, RZ26L, TZ30, and the TLZ06 drives. The
DEC 3000 Model 300 Series AXP systems support the BA353
expansion box. An optional dual-SCSI TURBOchannel option
card supports a maximum of 14 additional SCSI devices.
An optional pedestal mounting kit (BA350X-FA) is available for
the BA353 expansion box. See your Digital sales representative
for more information about this box and its options. Refer to
your expansion box documentation for mounting instructions.

Device
Verification

Be sure to refer to the operating system software product
description (SPD) to verify that all devices in a particular
expansion box are supported.

SCSI
Terminator

If no external devices are added, you must connect the SCSI
terminator to the SCSI port on the back panel of the system unit
to maintain signal integrity.
If external device(s) are added, you must connect a SCSI
terminator to the SCSI port on the last external device.

3–4

Compact Disc Drive

Compact Disc Drive
Introduction

The RRD42 compact disc drive is a half-height, 5¼-inch, 600megabyte storage device. You can connect the external model of
this drive to the SCSI port on the back panel of your DEC 3000
Model 300 Series AXP system (see External Device Connections )
and plug it in to an available outlet.
Refer to the 600 MB SCSI CD-ROM Installation Guide, listed in
Appendix D, for information on connecting cables to the RRD42
compact disc drive and on drive specifications.

Operating
System
Installation

If your system does not have factory-installed software, you can
load the operating system from an external compact disc.
For information on loading a disc into a caddy, and loading the
caddy into a compact disc drive, refer to either your operating
system installation documentation, or the instruction booklet
packed in the CD case.

3–5

External Device Connections

External Device Connections
Figure 3–1 shows where each of the external options connects to
the back panel of the system unit.

! Connect an external compact disc drive or storage expansion
box to the SCSI port.

" Connect a headset or handset to the audio input/output port.
Audio amplification is not provided by the system. To use
external speakers, you must provide amplification.

# Connect a tablet to the connector block where the mouse
cable would otherwise be connected.

$ Connect a printer, plotter, modem or console terminal to

the RS232 synchronous/asynchronous communications
port. The RS232 port is normally used in asynchronous
mode. The communications port supports X.25 synchronous
communication, but the support is operating-system-specific.

Figure 3–1 External Connections to the System Unit

ISDN

4
MLO-009748

3–6

4
Using Console Commands
Chapter Overview
In This Chapter

This chapter lists and then explains the use of the DEC 3000
Model 300 Series AXP console commands and their parameters
and qualifiers. Each console command description includes a
summary of its purpose, a list of associated parameters and
qualifiers, and usage examples.
The following console commands are covered in this chapter:
boot
continue
deposit
examine
halt
help
initialize

Additionally, this chapter covers these topics:
•

Skill level required

•

Definitions of console and program mode

•

Three diagnostic environments

•

Diagnostic examples associated with the test command

4–1

Chapter Overview

Skill Level
Recommended

Using console commands requires basic, intermediate, and
sometimes advanced knowledge of your system and its
components, as well as the effect that console commands
can have on your system.
Skill Level
Recommended

Command

How Used

boot

Starts the operating system

Intermediate/
Advanced

continue

Returns from console mode
to operating system level
(program mode)

Advanced

deposit

Writes to specific memory, I/O,
and register locations from the
console

Advanced

examine

Displays contents of specific
memory, I/O, and register
locations

Advanced

halt
help

Halts the system

Basic

Displays the main help screen,
which is a list of six console
commands: boot, help

Basic

advanced, set, show, test
help
advanced
initialize

Displays advanced help

Intermediate

Resets console, devices, and
CPU

Intermediate

Gives you access to the
system and restricted console
commands if set password
command has been enabled

Intermediate

repeat
set
show

Executes commands repeatedly

Advanced

Sets an environment variable

Advanced1

Shows an environment
variable

Basic

start
test

Starts CPU at a given address

Advanced

Runs diagnostic tests

Intermediate

1 Exception:

4–2

set language is a basic command that sets the keyboard language.

Before You Begin

Before You Begin
Console Mode
Definition

In console mode, the system operates under the control of the
console subsystem, rather than the operating system. All user
input is passed to and interpreted by the console subsystem.
Console mode is in effect when the system is turned on and the
operating system software has not been started, or when the
operating system has been shut down.

When Console
Mode Is Used

Console
Prompt

You interact directly with the console subsystem under the
following circumstances:
•

Before booting the operating system software

•

While setting environment variables

•

When using the Firmware Update Utility

•

When trying to identify and resolve system problems or
errors (see Chapter 7 )

The console mode prompt looks like this:
>>>
You can enter control characters and console commands at the
console prompt.

Program Mode
Definition

In program mode, the system and console are under control of
the operating system. All user input is passed to the operating
system. You cannot issue console commands without returning
to console mode.
Program mode is in effect when the system is turned on and
the operating system software has started. In program mode,
the user can manage the system, run software applications, and
perform network tasks.

Program
Prompt

The program mode default prompt usually looks like this:
$

4–3

Before You Begin

Console
Mode Keys
and Control
Characters

Control characters are entered by holding down the key labeled
Ctrl while pressing another key, for example, Ctrl/C .
Table 4–1 lists the keys and control characters that you can use
while operating in console mode.
Table 4–1 Supported Keys and Control Characters
Key or Control
Character

4–4

Function

Return

The Return key executes the command that you
enter at the console prompt.

The delete key deletes one character to the left
of the current command line position. On video
terminals, deleted characters will be erased
from the screen. On hardcopy terminals,
deleted characters display within a pair of
backslash delimiters (\ \) as they are deleted.

Ctrl/C

This character aborts the current command.
This command has no effect once control has
been passed from console mode to another
program, such as the operating system or a
loadable diagnostic application.
This command appears as ^C on the screen.

Ctrl/O

This character suppresses output to the console
terminal until the Ctrl/O control character is
pressed again.
This command appears as ^O on the screen.

Ctrl/S

This character suspends output to the console
terminal until you press Ctrl/Q .

Ctrl/Q

This character resumes the display that was
previously suspended by pressing Ctrl/S .

Before You Begin

What To Do
First

Before using any console commands, you should complete these
tasks:
•

If your operating system is running, use the shutdown
procedures specific to your operating system:
Operating
System

•

Before You
Change
Parameters

Shutdown Command

For Additional Information

OpenVMS
AXP

@sys$system:shutdown System Management,

DEC
OSF/1
AXP

shutdown -h now

Vol. 1A, Guide to Starting
Up and Shutting Down the
System
Guide to System
Administration

If your system is not displaying the >>> prompt, then place
your system in console mode by pressing the halt button
after the operating system is shut down.

Do not change any parameters without fully understanding the
effect the change may have on your system. If you are unsure of
what the change will be when you specify a command, then read
carefully the information in this chapter before you make the
change.

4–5

Before You Begin

CAUTION:
Control of
System Devices

Some console commands control system devices and memory. Do
not use console commands without fully understanding the effect
they can have on your DEC 3000 Model 300 Series AXP system.
For instance, some advanced-level commands, such as deposit
and set let you manipulate nonvolatile and system memory.
Using the deposit command to place a value in a location of
memory containing the actual console firmware could either
hang the system or prevent it from restarting after it is turned
off.
If you are not sure about using console commands, ask your
system manager for help.

Diagnostics

Three
Diagnostic
Environments

You can access three different diagnostic environments:
1. Power-up diagnostic environment
This mode applies only when power is first applied to the
system, and before the system reaches console level.
Note
The term startup, as used in text, describes the starting
up of your system from console mode.

2. Customer (console) diagnostic environment
For customer-run (console) diagnostics, first shut down the
operating system. If the console is not displaying the >>>,
then press the halt button on the back of the system unit.
Type the following command:
>>> set diag_s[ection] 1

4–6

Return

Diagnostics

From the customer (console) environment you can run a
single diagnostic test using, for example, the test command
and then specifying a device name. The following example
tests the NVR:
>>> t[est] nvr

Return

3. Service diagnostic environment
To run multiple tests with one command, and for a thorough
testing of your system, first shut down the operating system,
then press the halt button on the back of the system unit,
and type:
>>> set diag_s[ection] 2

Return

Note that there may be special requirements in order to
execute a certain test; for example, loopback connectors,
a handset, or a specific device may be required. See the
description of the test command.
You can run multiple diagnostic tests using, for
example, the test device_name,device_name or test
device_name:device_name commands. The test command is
described at the end of this chapter.
The following command tests the network interconnect (NI)
and nonvolatile random-access memory (NVR):
>>> t[est] ni,nvr

Return

4–7

BOOT

BOOT
Loads and
Starts
Operating
System

The boot command initializes the system and starts the boot
program, which loads and starts the operating system. There is
an 80-character limit on the input line, and there is no command
line wrap feature.
Format
Issue the boot command with the following syntax:

>>> b[oot] [-fl value][-fi filename]["slot_number/device_name"][-ns]

Parameters and
Qualifiers

Return

The boot command, and its parameters and qualifiers, are
described in Table 4–2.
Table 4–2 Parameters/Qualifiers for the boot Command
Parameter/Qualifier

Description

-fl value

The -fl boot flag is an ASCII string of
up to 23 characters. The string value
must be enclosed in quotation marks if it
is to be passed to the operating system
unmodified.

-fi filename

A filename of up to 23 characters, used to
specify the name of a file to load into the
system when booting across a network
device.

boot_device_name

A device name (such as dka300, rz3a
or a list of devices), from which the
system attempts to boot, or a saved
boot specification in the form of an
environment variable. One or more
default boot devices may be specified with
the set boot command.
(continued on next page)

4–8

BOOT

Table 4–2 (Cont.) Parameters/Qualifiers for the boot Command
Parameter/Qualifier

Description

-tc slot_number
[,net]

The TURBOchannel (-tc) slot number
you wish to boot through. This parameter
tells the boot class driver that it needs
to call the MIPS emulator to execute the
device’s boot object. Quotation marks
" " are required when booting from a
TURBOchannel device. For example,
to set the default boot device and then
issue the boot command, enter these
commands:
>>> set bootdef_dev "1/DKA0"
>>> b "1/DK0" Return

Return

To boot from device DKA400 connected
to TURBOchannel slot 2, enter this
command:
>>> boot "2/dka400"

Return

To perform a MOP boot from a device
connected to TURBOchannel slot 3, enter
this command:
>>>boot "3/esa0" -fi "filename.sys"

Return

To perform a BOOTP boot (tftp) from a
device connected to TURBOchannel slot
4, enter this command:
>>>boot "4/ez0" -fi "/tmp/vmunix"

Return

The user must specify a value for ,net
if the device is a network device. For
example, the following command lines
boot a system from the network device in
TURBOchannel slot 1:
>>> b "1/ES"

Return

(continued on next page)
4–9

BOOT

Table 4–2 (Cont.) Parameters/Qualifiers for the boot Command

Using the boot
Command

Parameter/Qualifier

Description

-ns

Tells the console to not start the code
after it has been loaded. This parameter
can be used as a debug tool.

•

Issuing the boot command with the -fl, -fi qualifiers and
boot_device_name parameter overrides the current default
value for the current boot request, but it does not change the
stored default value.

•

If no device name is specified with the boot command,
the default boot device, stored using the set bootdef_dev
command , is assumed.

•

If no flag is given, then the default value is read from
the environment variable stored by the set boot_osflags
command. If no value is specified for the flags, the value (0,
0) is assumed.

Additional information about boot flags is provided in your
operating system documentation.
For this operating
system...

4–10

Refer to the...

OpenVMS AXP

OpenVMS AXP Installation and Upgrade
Manual

DEC OSF/1 AXP

Guide to Installing DEC OSF/1 AXP

BOOT

Boot Device
Names and
Naming
Conventions

A device is a hardware unit connected to your DEC 3000 Model
300 Series AXP system that is capable of receiving, storing, or
transmitting data. The device name is a special identifier that is
recognized by the system.
The device names used in booting a DEC OSF/1 system are
identical to those used in booting an OpenVMS AXP system:
the DK/MK/ES device names shown in Table 4–3 apply to both
operating systems. In addition, a DEC OSF/1 system can be
booted using the alternate device names (RZ/TZ/ES/EZ) also
shown in Table 4–3.
Table 4–3 Device Names
OpenVMS
AXP
Device Name

DEC OSF/1
AXP
Device Name

Device Type

Fixed or removable disk

Tape

Ethernet boot using MOP
protocol

–

Ethernet boot using bootp
protocol. Refer to your
DEC/OSF1 operating system
documentation for information
on the bootp protocol.

4–11

BOOT

Conventions
for Both
Operating
Systems

The device naming convention common to both the OpenVMS
AXP and DEC OSF/1 operating system is ddiunn. The alternate
device naming convention for the DEC OSF/1 operating system
is ddui. See Table 4–4 and Table 4–5 for descriptions of these
conventions.
Table 4–4 Naming Convention Common to Both Operating
Systems
Convention

Description

Device name identifier from Table 4–3

Designates SCSI controller (A)

Designates the SCSI ID number, also known as
a logical unit number (LUN).

Designates SCSI sub-logical unit number (subLUN), with the default of 00

Table 4–5 Alternate Naming Convention for DEC OSF/1 System

4–12

Convention

Description

Device name identifier from Table 4–3

Designates the SCSI ID number, also known as
a logical unit number (LUN).

Designates SCSI controller (A)

BOOT

A disk device with a SCSI ID of 3 and a sub-LUN of 00 could
have the following device name:
dka300
A disk device with a SCSI ID of 3 could have an alternate OSF/1
device name:
rz3a

Example:
Default Boot

The following example specifies the default boot command:
>>> boot

Example:
Overriding the
Default Boot

Return

The following example overrides the current default boot
environment settings. It does not change the default values
stored as environment variables.
>>> boot -fi "myboot.com"

Example:
Device Boot

The following example boots from:
•

DK — the disk device

•

A — SCSI controller A

•

3 — SCSI ID 3

•

00 — LUN 00

>>> boot dka300

Example:
DEC/OSF1
Network Boot

Return

The following example performs a network boot:
>>> boot -fi "mop/tmp/vmunix" "1/esa0"

Return

4–13

BOOT

Example:
OpenVMS
Network Boot

The following example performs a Maintenance Operations
Protocol (MOP) boot to device ESA0 with the flags equal to 0,0.
>>> b -fl 0,0 esa0

Return

To perform a MOP boot from another node over the network on
OpenVMS systems, follow these steps and refer to the example
that follows:
1. Identify the Ethernet address of the node you want to boot
2. Set trigger on
3. Set mop on
$ mc ncp

Return

! From any non-privileged account

NCP>>> trigger via sva-0 phy add 08-00-2b-2a-1f-82 ser pass
1234567890abcdef Return

Follow these steps to access the console on a remote system:
1. Identify the Ethernet address of the node you want to boot
2. Set trigger on
3. Set mop on
$ mc ncp

Return

! From any non-privileged account

NCP>>> conn via sva-0 phy add 08-00-2b-2a-1f-82 ser pass
1234567890abcdef Return

4–14

>>> login Return
PSDWO>>> Return

! Enter password

>>> exit

! Console mode

Return

CONTINUE

CONTINUE
Returns System
to Program
Mode

The continue command returns the system to program mode
(operating system level), after console mode has been invoked.
Note
The continue command is supported only on the
OpenVMS operating system.

Your operating system should resume execution after you enter
this command, providing that the contents of memory used by
the operating system have not been altered or corrupted. The
processor begins instruction execution at the address contained
in the program counter. Commands that can corrupt or alter
system memory include the test and deposit commands. This
command does not initialize the processor.
The following function is not supported on a graphics console:
Ctrl/P

/continue

This function works only on the alternate console.
Format
To execute the continue command, use the following syntax:
>>> c[ontinue] Return

Example

The following example returns the system from console mode to
program mode.
>>> c

Return

4–15

DEPOSIT

DEPOSIT
Writes to
Memory

The deposit command is used to write to memory locations
from the console. If no address space or data size options are
specified, the defaults are the last address space and the data
size used in a deposit or examine command.
Format
To execute the deposit command, use the following syntax:

>>> d[eposit] [-{size_option}] [-{address_option}] [-{misc_opts}] {address} {data}

Return

The {address} qualifier specifies the address (or first address) to
be written. Data values must be in hexadecimal form.

Parameters and
Qualifiers

The [-{size_option}] qualifiers specify data size:
Size
Option

-b
-w
-l
-q

Description

byte (8 bits)1
word (16 bits)1
longword (32 bits) (default)1
quadword (64 bits)1

1 The size option qualifiers conflict with all of the

as all processor registers are quadwords.

4–16

examine register commands,

DEPOSIT

The [-{address_option}] qualifiers specify address type:
Address
Option

-vm[em]
-pm[em]
ps

Description

The address space is virtual memory.
The address space is physical memory (default)
Processor status register (PS). The data size is always
a quadword.1

-u

Unprotects a protected memory location. Use
caution when depositing information in memory
locations 0 - 200000, as they contain the console code,
hardware restart parameter block, console routine
block, console terminal block, memory descriptors,
page tables, etc. Be aware that the -u qualifier gives
you unprotected access to these registers.

-r

General purpose register, R0 through R31. The data
size is always quadword.

-fr

Floating point register, FR0 through FR31. The data
size is always quadword.

-i

Internal processor registers (IPRs). The data size is
always quadword.

pc
sp

Program counter. The data size is always quadword.1
Stack pointer. The data size is always quadword.1

1 This option should not be typed with the hyphen (-).

4–17

DEPOSIT

The [-{miscellaneous_options}] qualifiers specify
miscellaneous information.
Miscellaneous
Option

Description

-n{value}

Specifies the number of consecutive locations to
modify. The information specified in {value} is
deposited to the first address, and then to the
specified number of succeeding addresses.

-s{value}
-u{value}

Address increment size.
Access to console private memory is allowed. This
option disables virtual address protection checks.

The {address} qualifier is a longword that specifies (in
hexadecimal form) the first location into which data is deposited.
Supported
Symbolic
Addresses

4–18

Description

’*’

The location last referenced in an examine or
deposit command.

’+’

The location immediately following the last
location referenced in an examine or deposit
command.

’-’

The location immediately preceding the last
location referenced in an examine or deposit
command.

’@’

An indirect operation. Take the address specifier
and use it as the pointer to the data.

DEPOSIT

The {data} qualifier specifies the data to be deposited. If the
specified data is larger than the deposit data size, the console
ignores the command and issues an error response. If the
specified data is smaller than the deposit data size, it is extended
on the left with zeros.

Examples

The following example writes a value of 01234567 into six
longword locations starting at address 00100000:
>>> d -u -pm -n:5 00100000 01234567

Return

The following example deposits FFFF to general purpose
registers R0 through R2:
>>> d -r -n 2 0 ffff

Return

The following example deposits F to stack pointer:
>>> d sp f

Return

4–19

EXAMINE

EXAMINE
Displays
Memory
Locations

The examine command examines and displays the contents of the
specified memory location. The displayed line consists of a single
character address specifier, the hexadecimal physical address to
be examined.
After initialization, the default address space is physical memory,
the default data size is a longword and the default address is
zero. If conflicting address space or data sizes are specified, the
console ignores the command and issues an error response.

Format
To execute the examine command, use the following syntax:
>>> e[xamine] [-{size_option}][-{address_option}] [-{miscellaneous_options}] [{address}] Return

The {address} qualifier specifies the address (or first address) to
be read.

Parameters and
Qualifiers

Except for the -u miscellaneous option, the console code
remembers the qualifiers specified in the last command and
continues in that mode until you provide a new qualifier. For
example:
>>> e r0
GPR: 00 00000000 0000000
>>> e 100000
?22 ILL REF
The above sequence produces an illegal address error, as there is
no address r100000. The following sequence is required:
>>> e r0
GPR: 00 00000000 00000000
>>> e -pm -u 100000
PMEM: 00000000.00100000 4C202343 54205420
In the above sequence, the -u (unprotected) qualifier was added
to the command line.

4–20

EXAMINE

CAUTION

Use caution when examining registers 0 - 200000, as they
contain the console code, hardware restart parameter block,
console routine block, console terminal block, memory descriptors
and page tables. Be aware that the -u qualifier gives you
unprotected access to these registers.
The [-{size_option}] qualifiers specify data size:
Data
Option

-b
-w
-l
-q

Description

byte (8 bits)1
word (16 bits)1
longword (32 bits) (default)1
quadword (64 bits)1

1 The data option qualifiers conflict with all of the

examine register commands,

as all processor registers are quadwords.

The [-{address_option}] qualifiers specify address type:
Address
Option

-vm[em]
-pm[em]
ps

Description

The address space is virtual memory.
The address space is physical memory (default).
Processor status register (PS). The data size is always
a quadword.1

-u
-r

Unprotects a protected memory location.

-fr

Floating-point register, FR0 through FR31. The data
size is always quadword.

-i

Internal processor registers (IPRs). The data size is
always quadword.

pc
sp

Program counter. The data size is always quadword.1

General-purpose register, R0 through R31. The data
size is always quadword.

Stack pointer. The data size is always quadword.1

1 This option should not be typed with the hyphen (-).

4–21

EXAMINE

The miscellaneous_options qualifiers specify miscellaneous
information.
Misc
Option

-n {value}
-s {value}
-u

Description

Specifies the number of locations to be read.
Specifies address increment size. Default is data
size.
Access to console private memory is allowed.

The following qualifier specifies type of display.
Display
Option

-a

Description

Interpret and display data as ASCII data. Nonprinting characters are displayed as a period (.).

The {address} qualifier is a longword that specifies (in
hexadecimal form) the first location into which data is deposited.
Supported
Symbolic
Addresses Description

4–22

’*’

The location last referenced in an examine or deposit
command.

’+’

The location immediately following the last location
referenced in an examine or deposit command.

’-’

The location immediately preceding the last location
referenced in an examine or deposit command.

’@’

An indirect operation. Take the address specifier and
use it as the pointer to the data.

EXAMINE

Examples
This example reads the Hardware Restart Parameter Block
register (HRPB) with ASCII for 10 locations starting at location
0.
>>> e-u-q-a-n: 10 0

Return

Result:
00000000.00000000 ........
00000000.00000008 ........
00000000.00000010 ........
00000000.00000018 ........
00000000.00000020 ........
00000000.00000028 ........
00000000.00000030 ........
00000000.00000038 ........
00000000.00000040 ........
00000000.00000048 ........
00000000.00000050 ........
00000000.00000058 ........
00000000.00000060 ........
00000000.00000068 ........
00000000.00000070 ........
00000000.00000078 ........
00000000.00000080 ........
This example will examine general-purpose registers R0 through
R2.
>>> e-r-n 2 0

Return

GPR: 00 00000000 00000000
GPR: 01 00000000 00000000
GPR: 02 00000000 00000000
The following example examines the stack pointer.
>>> e sp Return
GPR: 1E 00000000 00000000
The following example examines general-purpose register 5.
>>> e r5
GPR: 05 00000000 00000000
The following example examines floating-point register 4.
>>> e fr4

4–23

HALT

HALT
Halts the
System

The halt command halts the system. There are no parameters
associated with this command.
Format
Issue the halt command as follows:
>>> h[alt]

Return

The system halts and the following message displays:
?2E HLTED
>>>

4–24

HELP

HELP
Displays List of
Commands

The help command displays a brief list of commands,
parameters, and qualifiers. If you specify set, show, or
mips_[emulator], you will receive further information for
that topic only. The help command is not intended to provide a
complete description of each command. For a more complete list
of commands, use the help advanced command.

Format
To execute the help command, use the following syntax:
>>> he[lp] [advanced][set][show][mips_emulator]

Example: help
Command

RETURN

The help command used alone displays the main help screen.
>>> help

Return

Result:
BOOT
HELP ADVANCED
INITIALIZE
SET[ENV] <envar> <value>
SHOW | PRINTENV [<envar>]
TEST

4–25

HELP

Example: help
advanced
Command

The help advanced command displays a list of the advanced
commands.
>>> help advanced

Return

Result:
BOOT [-FL <bflg> ] [-FI <filnam>] <devlist>
CONTINUE
DEPOSIT [{ -B | -W | -L | -Q | -A }] [{ -PM | -VM }] [-U] [-N:<n>]
[{ <addr> | <sym> | + | - | * | @ } [<datum>]]
EXAMINE [{ -B | -W | -L | -Q | -A }] [{ -PM | -VM }] [-U] [-N:<n>]
[{ <addr> | <sym> | + | - | * | @ }]
HALT
HELP [MIPS_EMULATOR | SET | SHOW]
INITIALIZE
LOGIN
REPEAT <cmd>
SET[ENV] <envar> <value>
SHOW | PRINTENV [<envar>]
START <addr>
TEST <devnam> [<tstnam>]

4–26

HELP

Example: help
set Command

The help set command displays a list of set command
parameters and qualifiers.
>>> help set

Return

Result:
SET[ENV] AUTO_ACTION <{RESTART | 1} | {BOOT | 2} | {HALT | 3}>
SET[ENV} BOOTDEF_DEV <ddau>
SET[ENV] BOOT_OSFLAGS <bflg>
SET[ENV] BOOT_RESET <{OFF | 0} | {ON | 1}>
SET[ENV] DIAG_LOE <{OFF | 0} | {ON | 1}>
SET[ENV] DIAG_QUICK <{OFF | 0} | {ON | 1}>
SET[ENV] DIAG_SECTION <1-3>
SET[ENV] ENABLE_AUDIT <{OFF | 0} | {ON | 1}>
SET[ENV] LANGUAGE <0-15>
SET[ENV] MOP <{OFF | 0} | {ON | 1}>
SET[ENV] PASSWORD
SET[ENV] RADIX < 0 | 10 | 16 >
SET[ENV] {SCSI_A} <0-7>
SET[ENV] SCSI_RESET <0-7>
SET[ENV] SECURE <{OFF | 0} | {ON | 1}>
SET[ENV] TRIGGER <{OFF | 0} | {ON | 1}>

4–27

HELP

Example:
help show
Command

Entering the help show command displays a list of show
command parameters.
>>> help show

Return

Result:
PRINTENV |
SHOW { AUTO_ACTION
BOOT_RESET
DIAG_LOE
ENABLE_AUDIT
LANGUAGE
RADIX
SECURE
}

Example: help
mips_emulator
Command

The help mips_emulator command displays a list of
TURBOchannel tests.
>>> help mips_emulator

Return

Result:
T TC# <tstnam>
T TC# ?
T TC# SCRIPT <scriptnam>
T TC# INIT
T TC# CNFG
T TC# LS
T TC# CAT <scriptnam>

4–28

|
|
|
|
|
|

INITIALIZE

INITIALIZE
Initializes
Processor,
Console, and
Devices

The initialize command initializes the processor, console,
and any devices connected to the system by default values. In
order to guarantee the state of the system, the console program
will also initialize r0 through r30 to 0 and the ISO and OC to
20000000.
Format
To execute the initialize command, use the following syntax:
>>> i[nitialize]

Example:
initialize
Command

Return

This example initializes the processor, console, and any devices
connected to the system.
>>> i

Return

Result:
INIT-S-CPU...
INIT-S-RESET_TC...
INIT-S-NVR...
INIT-S-CXT...
INIT-S-ASIC...
INIT-S-MEM...
INIT-S-SCC...
INIT-S-NI...
INIT-S-SCSI...
INIT-S-ISDN...

4–29

The login command enables restricted console commands, such
as those used in the Set Password Utility, when:
•

the secure jumper is installed on the system module

•

the password has been set and secure is set to on
Note
After set secure is set to on, type login at the >>>
prompt. Type your password at the PSWD0>>> prompt.

Format
To execute the login command, use the following syntax:
>>> lo[gin] Return
PSWD0>>> console_password

Example: login
Command

This example enables access to restricted console commands
when the secure bit is set.
>>> login
PSWD0>>>

4–30

Return

REPEAT

REPEAT
Repeats
Specified Tests

The repeat command causes the console program to repeatedly
execute any specified tests. It is terminated by pressing Ctrl/C
or by pressing the Halt button. There are no defaults for this
command.
Format
To execute the repeat command, use the following syntax:
>>> r[epeat] command {qualifier_list},...

Parameters and
Qualifiers

Return

The command variable specifies the command to be executed.
This can be any valid console command listed in this chapter.
The qualifier_list variable specifies the tests to be repeated, but
is not required, for example:
ASIC
MEM
NVR
SCC
NI
ISDN

Examples:
repeat
Command

The following examples show acceptable command format:
>>> r test
>>> test scc mouse
>>> r test scc:ni
The next example permits the ASIC (application-specific
integrated circuit) test to be repeated.
>>> r[epeat] t[est] asic

Return

The following example permits the ASIC, memory and SCSI
tests to be repeated.
>>> r[epeat] t[est] asic,mem,scsi

Return

4–31

SET

SET
Sets an
Environment
Variable

The set[env] command:
•

Sets an environment variable to a value or setting

•

Displays the value specified

•

Defines a command qualifier

•

Defines the console password

Format
To execute the set command, use the following syntax:
>>> set[env] environment [value]

4–32

Return

SET

Environment
Variables and
Values

Table 4–6 provides a list of the environment variables that can
be specified when the set command is used.
Table 4–6 set[env] Command Environment Variables and
Values
Environment
Variable

Variable Description

Value

Value
Description

auto_action

Specifies the action
the console should
take after a halt.

Restart
(or use 1)
Boot
(or use 2)
Halt
(or use 3)

A restart is
executed.
A reboot is
executed.
A halt is
executed

bootdef_dev

Sets the default
boot device. The
device names must
be valid boot devices
supported by the
boot command.
Entering "." resets
the boot device to the
default value.

boot_osflags

Defines additional
default values that
will be passed to
system software
during booting. The
value must be an
ASCII string, eight
characters in length,
and set in quotations
( " ). A comma ( , ) is
not one of the special
characters.

See
Table 4–7.

(continued on next page)

4–33

SET

Table 4–6 (Cont.) set[env] Command Environment Variables
and Values
Environment
Variable

Value
Description

Variable Description

Value

Determines if the
console will initialize
the system prior
to booting. Digital
recommends that
boot_reset be set to
On.

On
(or use 1)

diag_loe

Allows a diagnostic
to loop on error. All
output is suppressed.
To exit the loop,
press the Halt
button to return
to the diagnostic
environment (either
console or service
mode). This feature is
available on loadable
diagnostics only.
It will not work
on TURBOchannel
devices.

On
(or use 1)
Off
(or use 2)

Enables loop on
error feature.
Disables loop on
error feature.

diag_quick

Sets the diagnostic
startup mode to either
normal or fast startup
testing. When fast
mode is selected, not
all diagnostic tests
are executed.

On
(or use 1)
Off
(or use 2)

Quick verify
testing only.
Normal (full)
testing occurs.

diag_section

Sets the diagnostic
environment in which
diagnostics can be
run, either console or
service mode.

See
Table 4–8

boot_reset

Off
(or use 2)

Enables system
initialization
before booting.
Disables system
initialization
before booting.

(continued on next page)

4–34

SET

Table 4–6 (Cont.) set[env] Command Environment Variables
and Values
Environment
Variable

Variable Description

Value

Value
Description

enable_audit

Determines whether
or not the boot
audit trail message
generation is enabled.

On
(or use 1)
Off
(or use 2)

Enables boot
audit trail.
Disables boot
audit trail.

language

Sets the keyboard
language. Entering

See
Table 4–9

set language
without a qualifier
displays a list of
keyboard languages
from which you make
a selection. English
(3) is the default
value setting.
mop

Enables the NI
(Ethernet) listener
while the system
is in console mode.
The listener can
send and receive
messages on the
network. Determines
whether or not the
boot audit trail
message generation
is enabled. Digital
recommends that
you keep the mop
environment set to off
(except when you plan
to use it, after which
you should return the
status to OFF).

On
(or use 1)

Off
(or use 0)

Network
listener
enabled. Able
to receive
and transmit
messages on
the network.
(Default)
Network
listener
disabled.

(continued on next page)

4–35

SET

Table 4–6 (Cont.) set[env] Command Environment Variables
and Values
Environment
Variable
password

radix

Value
Description

Variable Description

Value

Sets the console
password. The
console secure
jumper must be
installed on the
system module. See
Chapter 5. The
password must be
exactly 16 characters
(hexadecimal) 0
through 9, and A
through F.

On
(or use 1)

Defines the default
Radix to a specified
value. The default is
hexadecimal.

Off
(or use 0)

Default base
address
(hexadecimal).
Decimal base
address.
Hexadecimal
base address.

10
16

scsi_reset

Causes a time delay
(in milliseconds) after
a SCSI reset and
before booting the
system.

Password is
enabled when
secure = on.
Password
disabled when
secure = off.

0 through 7
Use 3 for a
removablemedia
drive.
Use 4
(default) for
tape drives.
Use 6 for
CDs.

The value
is n in the
expression 2n .
For example,
a value of 3 is
23 and means
8 seconds. The
default is 24

(continued on next page)

4–36

SET

Table 4–6 (Cont.) set[env] Command Environment Variables
and Values
Environment
Variable

Variable Description

Value

Value
Description

secure

Enables the console
password bit to
restrict access to
the console. This
command works in
conjunction with
the console secure
jumper located on the
system module. See
Chapter 5.

On
(or use 1)
Off
(or use 0)

Secure feature
is enabled.
Secure feature
disabled.

trigger

Enables the EntityBased Module (EMB).
With EMB and the
NI listener enabled
(trigger = on), you can
boot the system from
a remote system.

On
(or use 1)
Off
(or use 0)

Enables trigger.
Disable trigger.

4–37

SET

Example: set
auto_action
Command

To execute the set auto_action command, use the following
syntax:
>>> se[t] auto[_action] {value}

Return

The following example sets the auto action default to halt.
>>> set auto 3

Return

Result:
AUTO_ACTION = HALT

Example: set
bootdef_dev
Command

To execute the set bootdef_dev command, use the following
syntax:
>>> set bootdef_dev {value}

Return

Issuing the show device command displays the available boot
devices.
The following example shows the boot default device being set to
dka200.
>>> set bootdef_dev dka200

Return

Result:
boot = dka200

Example: set
boot_osflags
Command

To execute the set boot_osflags command, use the following
syntax:
>>> set boot_osf[lags] {value}

Return

Table 4–7 describes the values to be used with the boot_osflags
environment and the OpenVMS operating system.

4–38

SET

Table 4–7 boot_osflags Command Values
Root

Contents of R5

Description

Default boot of operating system

Boot standalone backup1

Conversational boot

1 If installed on disk

The following example initiates a default boot of the operating
system.
>>> set boot_osf 0,0

Example: set
boot_reset
Command

Return

To execute the set boot_reset command, use the following syntax:
>>> set boot_r[eset] {value}

Return

The following example enables the system initialization before
booting.
>>> set boot_r on

Return

Result:
BOOT_RESET = ON

Example:
set diag_loe
Command

To execute the set diag_loe command, use the following syntax:
>>> set diag_loe [value]

Return

The following example sets up a loop on error.
>>> set diag_loe on

Return

Result:
DIAG_LOE = ON

4–39

SET

Example: set
diag_quick
Command

To execute the set diag_quick command, use the following
syntax:
>>> set diag_q[uick] [value]

Return

The following example sets the diagnostic startup mode to quick
verify testing.
>>> set diag_q on

Return

Result:
DIAG_QUICK = ON

Example: set
diag_section
Command

To execute the set diag_section command, use the following
syntax:
>>> set diag_s[ection] {value}

Return

Select one of the following values to set the diagnostic
environment.
Table 4–8 set diag_section Command Values

4–40

Value

Mode

Description

Power-up

Power-up operation.

Customer
(Console)

Default mode after power is applied to
system

Service

Sets up diagnostic environment. Provides
for more thorough testing. Loopback
connectors may be required to execute
certain tests.

SET

In the following example, the diagnostic environment is set to
console mode.
>>> set diag_s 1

Return

Result:
DIAG_SECTION = 1

Example: set
enable_audit
Command

To execute the set enable_audit command, use the following
syntax:
>>> set enable_a[udit] {value}

Return

The following example enables the boot audit trail.
>>> set enable_a on

Return

Result:
ENABLE_AUDIT = ON

Example:
set language
Command

To execute the set language command, use the following syntax:
>>> set l[anguage] {value}

Return

4–41

SET

Select one of the following values to set the appropriate
language:
Table 4–9 Selecting a Keyboard Language
Value

Language Selected

0) Dansk

Danish

1) Deutsch

German

2) Deutsch (Schweiz)

German/Swiss

3) English

North American English
(default setting)

4) English

British/Irish

5) Español

Spanish

6) Français

French

7) Français

Canadian French

8) Français

Swiss French

9) Italiano

Italian

10) Nederlands

Dutch

11) Norsk

Norwegian

12) Portugués

Portuguese

13) Suomi

Finnish

14) Svenska

Swedish

15) Vlaams

Flemish

The following example sets the language to Spanish.
>>> set language 5
Result:
LANGUAGE = 5
>>>

4–42

Return

SET

Example: set
mop Command

To execute the set mop command, use the following syntax:
>>> set mop {value}

Return

The following example enables the network listener while the
system is in console mode.
>>> set mop on

Return

Result:
MOP = ON
>>>

Example: set
password
Command

To execute the set password command, use the following syntax:
>>> set pass[word]

Return

The following example sets the password.
>>> set password

Return

Result:
PSWD0> old_password
PSWD1> new_password
PSWD2> new_password

!Type old password (if one has been set)
!Type new password
!Verify new password

>>>

Example:
set secure
Command

To execute the set secure command, use the following syntax:
>>> set sec[ure] {value}

Return

The following example enables the security features.
>>> set secure on

Return

Result:
SECURE = ON

4–43

SET

Example: set
radix Command

To execute the set radix command, use the following syntax:
>>> set ra[dix] {value}

Return

The following example sets the address to a decimal base
address.
>>> set radix 10

Return

Result:
RADIX = 10

Example: set
scsi_reset
Command

To execute the set scsi_reset command, use the following syntax:
>>> set scsi_r[eset] {value}

Return

The following example sets a time delay of 4 milliseconds
(default).
>>> set scsi_r 4

Return

Result:
SCSI_RESET = 4

Example:
set trigger
Command

To execute the set trigger command, use the following syntax:
>>> set tri[gger] {value}

Return

The following example enables trigger.
>>> set trigger on
Result:
TRIGGER = ON

4–44

Return

SHOW

SHOW
Shows
Environment
Variables

Your system is shipped with default values set for all available
parameters. The show console command displays the following
information:
•

Environment variables

•

Console options

•

Hardware configuration

Format
To display the current values for a specified environment
variable, type:
>>> show {variable}

Return

To display the current value for all variables, type:
>>> show

Return

4–45

SHOW

Environment
Variables and
Values

Table 4–10 provides a list of the environment variables that can
be specified when the show command is used.
Table 4–10 Environment Variables and Values for the show
Command
Environment
Variable
auto_action

Variable Description

Value

Value Description

Displays the action
the console takes
following an error
halt or a halt during
startup.

Restart

A restart was
executed.
A reboot was
executed.
A halt was
executed.

Boot
Halt

bootdef_dev

Displays the default
boot device or device
list from which
booting will next be
attempted.

boot_osflags

Displays default
parameters passed
to system software
during booting.

Displays the value
of the boot_reset
variable.

boot_reset

System
initialization
enabled.
System
initialization
disabled.

Off

System
initialization
enabled.
System
initialization
disabled.

Off

config

Displays the system
configuration and
device status.

device

Displays SCSI and
Ethernet device
information.

See
Chapter 2.

diag_loe

Displays the
diagnostic loop
on error feature.

On
Off

Loop on error
enabled.
Loop on error
disabled.
(continued on next page)

4–46

SHOW

Table 4–10 (Cont.) Environment Variables and Values for the
show Command
Environment
Variable

Variable Description

Value

Value Description

diag_quick

Displays the
diagnostic startup
mode, either normal
or fast.

On
Off

Fast testing.
Normal testing.

diag_section

Displays the
diagnostic
environment

0
1
2

Startup.
Customer.
Service.

enable_audit

Displays the boot
audit trail message
generation.

On
Off

Enabled.
Disabled.

error

Displays error
information for
ASIC, MEM, NVR,
SCC, NI, ISDN,
SCSI. See example
in value column.

Error message
indicator.
FRU number.
Name of the
diagnostic test
that detected an
error.
Error number in
hexadecimal form.

004
SCC

0x0060
ethernet

Displays the
hardware Ethernet
address and
Ethernet port.

language

Displays the
keyboard language
(only if your system
has a graphics
head). Identifies the
language in which
console messages
are displayed.

mem

Displays memory
status information

0-7
Bank number.
008
Memory size per
Mbytes
bank.
0x00000000 Starting address of
each bank.

English

(continued on next page)

4–47

SHOW

Table 4–10 (Cont.) Environment Variables and Values for the
show Command
Environment
Variable
mop

Variable Description

Value

Value Description

Displays the NI
(Ethernet) listener.

Network listener
enabled. Receive
and transmit
network messages.
Network listener
disabled.

Off
secure

radix

Displays system
security status. This
command works in
conjunction with
the console secure
jumper located on
the system module.

Displays the
default Radix (base
number).

Off

10
16

Example: show
Command

scsi_a

Displays the SCSI
ID for the system
bus

Value = 0
through 7.

scsi_reset

Displays the
time delay (in
milliseconds) after
a SCSI reset and
before booting.

Value = 0
through 7.

trigger

Displays the current
trigger setting.

On
Off

Default base
address (hexadecimal form.)
Decimal base
address.
Hexadecimal base
address.
Number of the
host ID.

Trigger enabled.
Trigger disabled.

The following example displays the current values for all
environment variables.
>>> sh[ow]

4–48

Secure feature
enabled.
Secure feature
disabled.

Return

SHOW

Result:
AUTO_ACTION = RESTART
BOOTDEF_DEV = DKA100
BOOT_OSFLAGS = 0,0
ENABLE_AUDIT = ON
BOOT_RESET = ON
SCSI_RESET = 4
DIAG_LOE = OFF
DIAG_QUICK = ON
DIAG_SECTION = 1
ETHERNET = 08-00-2B-2F-F8-E6 , TENBT
LANGUAGE = 3
MOP = OFF
SECURE = ON
RADIX = 0
SCSI_A = 7
TRIGGER = ON

Example: show
auto_action
Command

To execute the show auto_action command, use the following
syntax:
>>> sh[ow] auto_a[ction]

Return

The following example shows the action the console takes after a
halt.
>>> sh auto_a

Return

Result:
AUTO_ACTION = RESTART

Example: show
bootdef_dev
Command

To execute the show bootdef_dev command, use the following
syntax:
>>> sh[ow] bootdef_d[ev]

Return

The following example shows that the default boot device is
dka400.
>>> sh bootdef_d

Return

Result:
boot = dka400

4–49

SHOW

Example: show
boot_osflags
Command

To execute the show boot_osflags command, use the following
syntax:
>>> sh[ow] boot_o[sflags]

Return

The following example displays the current osflags stored in the
system.
>>> show boot_o

Return

Result:
BOOT_OSFLAGS = 0,0
>>>
Where 0,0 refers to the contents of the root and of register 5, as
follows:
Root

Contents of R5

Description (OpenVMS system)

Default boot of operating system

Boot standalone backup

Conversational boot

1 If installed on disk

Example: show
boot_reset
Command

To execute the show boot_reset command, use the following
syntax:
>>> sh[ow] boot_r[eset]

Return

The following example shows the value of the boot reset variable.
>>> sh boot_r

Return

Result:
BOOT_RESET = ON

4–50

SHOW

Example:
show config
Command

To execute the show config command, use the following syntax:
>>> sh[ow] conf[ig]

Return

The following is an example of a system configuration.
>>> show config
Result:
DEC 3000 - M300
Digital Equipment Corporation
VPP PAL X5.39-80800101/OSF PAL X1.28-80800201 Built on 30-MAR-1993 09:55:18.29
TCINFO
------

DEVNAM
-----CPU
ASIC
MEM
FEROM

DEVSTAT
-------OK KN16-AA - Vx.x-Syyy-Izzz - sx.x - DECchip 21064 P3.0-150
OK
OK

6
CXT OK
5
NVR
SCC
NI
ISDN

OK
OK
OK
OK

4
SCSI OK

Example:
show device
Command

To execute the show device command, use the following syntax:
>>> sh[ow] dev[ice]

Return

The following example shows the current devices.
>>> show device

Return

Result:
BOOTDEV ADDR
DEVTYPE NUMBYTES
------- ---------- -------ESA0
08-00-2B-2F-F8-E6 , TENBT
DKA300
A/3/0 DISK
426.25MB
DKA500
A/5/0 DISK
......
..HOSTID.. A/7
INITR

RM/FX WP DEVNAM
----- -- ------

REV
---

FX
RM

0900
0068

RZ25
RX26

4–51

SHOW

Example:
show diag_loe
Command

To display the current diag_loe variable setting, use the following
syntax:
>>> sh[ow] diag_l[oe]

Return

The following example shows that the current setting of diag_loe
is OFF.
>>> sh diag_l

Return

Result:
DIAG_LOE = OFF

Example: show
diag_quick
Command

To execute the show diag_quick command, use the following
syntax:
>>> sh[ow] diag_q[uick]

Return

One of the diagnostic settings in the following table is displayed
on the screen.
Diagnostic
Setting

Description

Fast testing

Off

Normal testing

The following example shows the selected diagnostic mode.
>>> show diag_quick

Return

Result:
DIAG_QUICK = ON

Example: show
diag_section
Command

To execute the show diag_section command, use the following
syntax:
>>> sh[ow] diag_s[ection]

4–52

Return

SHOW

The following example shows the mode selected.
>>> sh diag_s

Return

Result:
DIAG_SECTION = 2

Example: show
enable_audit
Command

To execute the show enable_audit command, use the following
syntax:
>>> sh[ow] enable_a[udit]

Return

The following example shows the boot audit trail enabled.
>>> sh enable_a

Return

Result:
ENABLE_AUDIT = ON

Example: show
error Command

To execute the show error command, use the following syntax:
>>> sh[ow] e[rror]

Return

The following example displays the error information.
>>> show error

Return

Result:
??002 SCC 0x0040
?T-ERR-SCC-MODEM - CTS bit Exp = 1 Rec = 0
The status message in this example means that the modem test
expected the CTS bit to be set, but it was clear.
??001 SCC 0x0060
?T-ERR-SCC-Mouse - %x char recvd
The status message in this example means that the response
received from the mouse was less than the number of characters
expected.

4–53

SHOW

Example:
show ethernet
Command

To execute the show ethernet command, use the following syntax:
>>> sh[ow] et[hernet]

Return

The following example shows the Ethernet address and Ethernet
port.
>>> show ethernet

Return

Result:
ETHERNET = 08-00-2B-2F-F8-E6 , TENBT

Example:
show language
Command

To execute the show command with language variable, use the
following syntax:
>>> sh[ow] l[anguage]

Return

The following example identifies the language as Spanish.
>>> show language
Result:
LANGUAGE = 5

4–54

Return

SHOW

Example: show
mem Command

To execute the show mem command, use the following syntax:
>>> sh[ow] mem

Return

The following example shows the memory status information.
>>> show mem
Result:
DEC 3000 - M300 Memory: 32 Mbytes
-----------------------------------------BANK #
MEMORY_SIZE
START_ADDRESS
---------------------------0
008 Mbytes
0x00000000
1
008 Mbytes
0x00800000
2
008 Mbytes
0x01000000
3
008 Mbytes
0x01800000
4
000 Mbytes
0x00000000
5
000 Mbytes
0x00000000
6
000 Mbytes
0x00000000
7
000 Mbytes
0x00000000
>>>
In the above example:

Example: show
mop Command

•

Banks 0,1,2,3 each contain one 8-megabyte SIMM

•

Banks 4,5,6,7 contain no memory

To execute the show mop command, use the following syntax:
>>> sh[ow] mo[p]

Return

The following example shows that the mop environment has
been selected.
>>> sh mo

Return

4–55

SHOW

UTC
AccurTDF
BytesRx
BytesTx
FramesRx
FramesTx
McBytsRx
McFrmsRx
FrmDefer
Frm1Coll
FrmMColl
TerXsCol
TerCarCk
TerShCkt
TerOpCkt
TerFRLng
TerNoDef
RerFCSEr
RerFrmEr
RerFrLng
UnknDest
DataOvrn
SyBuffUn
UsBuffUn
HrtBtErr

= 0000000D.5F384CA0
= 10000000.000186A0
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000014
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000
= 00000000.00000000

MOP = ON

Example: show
radix Command

To execute the show radix command, use the following syntax:
>>> sh[ow] ra[dix]

Return

The following example displays the radix.
>>> show radix

Return

Result:
RADIX = 10

Example:
show secure
Command

To execute the show secure command, use the following syntax:
>>> show secure

Return

The following example displays the console security status.
>>> show secure

4–56

Return

SHOW

Result:
SECURE = OFF

Example:
show scsi_a
Command

To execute the show scsi_a command, use the following syntax:
>>> sh[ow] scsi_a

Return

The following example shows the SCSI ID for the system is 7.
>>> show scsi_a

Return

Result:
SCSI_A = 7

Example: show
scsi_reset
Command

To execute the show scsi_reset command, use the following
syntax:
>>> sh[ow] scsi_r[eset]

Return

The following example shows that the current value of the SCSI
reset is 4.
>>> show scsi_reset

Return

Result:
SCSI_RESET = 4

Example:
show trigger
Command

To execute the show trigger command, use the following syntax:
>>> sh[ow] t[rigger]

Return

The following example shows the current trigger setting.
>>> show trigger

Return

Result:
TRIGGER = OFF

4–57

START

START
Starts CPU

The start command is used to set the program counter (PC) and
start the CPU. The command causes the system to exit console
mode and enter program mode.
Format
To execute the start command, use the following syntax:
>>> start {address}

4–58

Return

TEST

TEST
Diagnostic
Testing

The test command lets you test the entire system, a portion
of the system (or subsystem), or a specific device. If you do not
specify a parameter, the system will test all components.
Format
To execute the test command, use the following syntax:
>>> t[est] [test_device] [optional_parameters]

Parameters

Return

The following table describes the test command parameters:
Parameter

Function

test_device

The name of the device or subsystem to
be tested.

optional_parameters

Optional parameters accepted by a
subsystem test. Refer to Table 4–15
through Table 4–20, and Table 4–22.
CAUTION

If the action performed by a parameter has the potential
of destroying data written on media, you are first
prompted to make sure that you really want to perform
the action. The following prompt is displayed: OK?

4–59

TEST

The test command, when used with the test_device parameter
and an optional parameter, executes selected diagnostics. The
following parameters specify a device or subsystem to be tested.
A list of available devices in the system can be obtained by
issuing a show config command. Table 4–11 lists the names of
the devices and subsystems you substitute for [test_device] in the
command line.
Table 4–11 Test Devices

4–60

Parameter

Function

asic

Tests the ASIC (application-specific integrated
circuit) subsystem.

cxt

Runs the CXT (graphics) pattern test with the
user verification parameter set.

ferom

Tests to see if the Flash ROM image is correct for
the CPU, and that the expected checksums are
correct.

isdn
mem

Tests the ISDN and audio subsystem.

Verifies that the LANCE chip is operational. The
diagnostic also induces "forced errors" to ensure
functionality.

nvr

Tests NVR (nonvolatile random-access memory),
and specifically ensures the integrity of the
TOY/NVR controller located on the system module.

scc

Tests the SCC (serial communication controller
chip: keyboard, mouse) subsystem, and specifically
the data path to the SCC, and the ability to
operate in asynchronous mode.

scsi

Tests the SCSI subsystem, specifically the
controller chips, SCSI ASIC, SCSI bus, and DMA
path.

tcn

Tests the TURBOchannel option in slot n, that is,
the option installed in either slot 0 or 1. For use
on Model 300/300X/300LX systems.

Performs ECC testing of memory, as well as
detects address and data with faults.

TEST

The following test scsi command parameters specify the
frequently-used SCSI test utilities:

Parameter

Function

Test Requirements

erase

Spins up and erases a
fixed disk.

RZnn disk drive

format

Formats and erases a
diskette.

RX26 removable-media
drive

verify

Verifies that all blocks
on a fixed disk can be
read.

RZnn disk drive

4–61

TEST

Erase Disk
Utility Example

The following example erases a fixed disk. Enter the following
command and answer the question.
>>> t[est] scsi erase

Return

The following example displays the questions to which you must
respond:
>>> t scsi erase

Return

SCSI_id(0-7)>>> 3 Return
SCSI_lun(0-7)>>> 0 Return )
SCSI HD_DSK_ERAS_UTIL
DKA300 OK? OK Return
.......................................................
SCSI-bb-repl 0
SCSI-util_succ
OK
>>>
Table 4–12 explains the action required by each prompt.
Table 4–12 Erase Disk Utility Prompts

4–62

Utility Prompts With...

Action

SCSI_id(0-7)>>>
SCSI_lun(0-7)>>>
DKA100 OK?

Select SCSI ID number <07:00>
Select logical unit number <07:00>
Answer OK if device is correct

TEST

Diskette
Formatter
Utility Example

The Diskette Formatter Utility formats and erases a diskette.
To format a diskette in a device specified, for example, as
dka500:
1. Place the diskette in the drive.
2. Enter the following command, answering the questions that
are displayed:
>>> t[est] scsi format

Return

SCSI_id(0-7)>>> 5 Return
SCSI_lun(0-7)>>> 0 Return
SCSI FLP_FMT_UTIL
DKA500 OK? OK Return
SCSI-util_succ
OK
Table 4–13 explains the action required by each prompt.
Table 4–13 Diskette Formatter Utility Prompts
Utility Prompts With...

Action

SCSI_id(0-7)>>>
SCSI_lun(0-7)>>>

Select SCSI ID number <07:00>
Select logical unit number <07:00>
CAUTION

Once the Diskette Formatter Utility is started, do not
terminate the action or halt the machine. This will
corrupt the device being tested, and formatting will have
to be performed again.

4–63

TEST

Verify Disk
Utility Example

The Disk Verify Utility verifies that all blocks on a disk can be
read. To verify a disk, enter the following command and answer
the questions that are displayed:
>>> test scsi verify

Return

The following example verifies device dka500.
>>> t scsi verify

Return

SCSI_id(0-7)>>> 1 Return
SCSI_lun(0-7)>>> 0 Return
DKA500 OK ? OK Return
SCSI_DSK_VER_UTIL
SCSI-util_succ
OK
>>>
Table 4–14 explains the action required by each prompt.
Table 4–14 Verify Utility Prompts

4–64

Utility Prompts With...

Action

SCSI_id(0-7)>>>
SCSI_lun(0-7)>>>

Select SCSI ID number <07:00>
Select logical unit number <07:00>

TEST

Example: test
Command

The following example runs all available diagnostics, except
TURBOchannel diagnostics on the Model 300L system.
>>> test

Return

The display on your screen may show some of the following tests:
T-STS-ASIC - OK
T-STS-MEM - Current Test Parameters
T-STS-MEM - lo_addr = 00200000 init_mem = ON test_bad_pages = OFF
T-STS-MEM - hi-addr = 02000000 stop_on_err = ON
max_retries = 0
T-STS-MEM - Fill mem Wr AAAAAAAA 01800000
T-STS-MEM - Cell Test: FWD RD WR 55555555
T-STS-MEM - Addr Test: Waiting 10 seconds to test refresh
T-STS-MEM - OK
T-STS-NVR - ASSURE_CLOCK_IS_TICKING test
T-STS-SCC - DMA test
T-STS-SCC - LK401 test
T-STS-SCC - OK
T-STS-NI - Ext Lpbk test -

4–65

TEST

Example: test
asic Command

Diagnostic testing of the application-specific integrated circuit
(ASIC) is performed when the system is in console mode. All
reported errors contain a hexadecimal longword of data, and
the FRU code 001 to identify the failing component. Table 4–15
describes each ASIC test and the mode in which it is run.
Table 4–15 ASIC Diagnostic Subtests

Test Name

Description

Mode

Test
Requirements

coreio

Tests the CORE I/O ASIC
registers

Console

None

Tests the floating point
registers

Console

None

init

Initializes the
TURBOchannel interface
registers and core ASIC
registers

Console

None

tci

Tests the TURBOchannel
interface registers

Console

None

Lists subtests

Console
Service

None

The following is the command format for the ASIC test:
>>> t[est] asic test_name
Result (on error):
?? 001 ASIC xxxxxxxx

4–66

Return

TEST

Example:
test ferom
Command

Diagnostic testing of the flash ROM (FEROM) is performed when
the system is in console mode. All reported errors contain a
hexadecimal longword of data, and the FRU code 001 to identify
the failing component. Table 4–16 describes each FEROM test
and the mode in which it is run.
Table 4–16 FEROM Diagnostic Subtests

Example: test
mem Command

Test Name

Description

Mode

Test
Requirements

chksum

Verifies that the calculated
checksums equals the
checksum in the ROM.

Console

None

cpu

Flash ROM image must
correspond to CPU.

Console

None

Diagnostic testing of system memory detects address and data
that is stuck at faults, as well as performing ECC testing of
memory. Table 4–17 lists and describes the parameters. All
reported errors contain a hexadecimal longword of data, and the
FRU code 8yz to help locate the failing memory module.
Table 4–17 describes each memory test and the mode in which it
is run. Chapter 8 contains additional information about testing
memory.

4–67

TEST

Table 4–17 Memory Diagnostic Subtests

Test Name

Description

Mode

Test
Requirements

addr

Detects addresses stuck at
faults

Console

None

all
bits

Performs all tests

Console

None

Detects marching ones in
a field of zeros; single-bit
parity testing, every bit in
each longword

Console

None

cell

Detects data stuck at
faults

Console

None

init

Initializes all memory to
zeros

Console

None

llsc

Tests the load-locked/store
conditional

Console

MOP
must be
set OFF

Lists subtests and options

Console
Service

None

The following is the command format for the memory test:
>>> t[est] mem test_name

Return

Result (on error):
?? 8yz MEM xxxxxxxx

Example: test
nvr Command

4–68

Diagnostic testing of the nonvolatile RAM (NVR) tests the
TOY/NVR controller that is located on the system module.
Table 4–18 lists and describes the parameters. All reported
errors contain a hexadecimal longword of data, and the FRU
code 001 to help locate the failing component. Table 4–18
describes each NVR test and the mode in which it is run.

TEST

Table 4–18 NVR Diagnostic Subtests

Test Name

Description

Mode

Test
Requirements

cpu
init

Tests the CPU

Console

None

Initializes the interval
timer registers

Console

None

interrupt
nvr
toy

Tests the interval timer

Console

None

Tests nonvolatile RAM

Console

None

Tests the TOY (time of
year) clock

Console

None

Lists subtests and options

Console
Service

None

The following is the command format for the NVR test:
>>> t[est] nvr test_name

Return

Result (on error):
?? 001 NVR xxxxxxxx

Example: test
scc Command

Diagnostic testing of the serial communications controller (SCC)
tests the functionality of the following:
•

Data path to the SCC

•

Ability to operate in asynchronous mode

•

Data path from SCC to connectors on the back panel of the
system unit

•

DMA using the RS232 port

•

Keyboard/mouse port

All reported errors contain a hexadecimal longword of data,
and the FRU code 001 to help locate the failing component.
Table 4–19 describes each SCC test and the mode in which it is
run.

4–69

TEST

Table 4–19 SCC Diagnostic Subtests

init

Performs a reset test on
SCC controller

Console
Service

None

polled

Tests polled I/O

Console
Service

None

interrupt

Tests interrupt driven
I/O

Console
Service

None

dma

Tests DMA transfers

Console
Service

None

LK401

Tests for presence of
keyboard

Power-up
Console

Keyboard

mouse

Tests for presence of
mouse

Power-up
Console

Mouse

modem

Tests modem control
signals

Power-up
Console

Loopback

Lists subtests

Console
Service

None

The following is the command format for the SCC test:
>>> t[est] scc test_name

Return

Possible results (on error):
?? 001 SCC xxxxxxxx
?? 003 SCC xxxxxxxx
?? 004 SCC xxxxxxxx

Example: test
ni Command

4–70

The Network Interconnect (NI) diagnostic test verifies that
the LANCE chip is operational. The NI listener is enabled at
startup; that is, it executes automatically with no intervention.
It may be disabled by typing set mop 0. All reported errors
contain a hexadecimal longword of data, and the FRU code 001
to help locate the failing component. Table 4–20 describes each
NI test and the mode in which it is run.

TEST

Table 4–20 NI Diagnostic Subtests

Test Name

Description

Mode

Test
Requirements

collision

Tests internal loopback
with collision

Service

Loopback

crc

Tests internal loopback
with CRC check

Service

Loopback

dma_init

Tests LANCE
initialization and DMA

Console
Service

Loopback

ext_lpbk

Tests the external
loopback

Console
Service

Loopback

filter

Tests internal loopback
with address filter
checking

Service

Loopback

ilpbk

Tests internal loopback
and initialization

Console
Service

Loopback

init

Initializes the LANCE
chip and NI port

Console
Service

Loopback

interrupt

Tests internal loopback
with interrupts

Console
Service

Loopback

nar

Tests network address
ROM

Console
Service

Loopback

Tests LANCE registers

Console
Service

Loopback

rx_miss_buff Tests internal loopback

Service

Loopback

with MISS error

tx_buff

Tests internal loopback
with transmit buffer
error

Service

Loopback

Lists subtests

Console
Service

None

The following is the command format for the NI test:
>>> t[est] ni test_name

Return

4–71

TEST

If an external loopback is not present, the following message is
displayed:
T-STS-NI - Ext lpbk test
? T-ERR-NI - Exte Lpbk test
T-ERR-NI - Err = ac
?? 000 NI0x00f2

Example: test
tc Command

The TURBOchannel (TC) diagnostic test tests TURBOchannel
options in slots 0 and 1 using MIPS emulator scripts.
In addition to diagnostic testing, the MIPS emulator performs
these additional tasks on a TURBOchannel option:
•

Initializes the option

•

Displays option configuration

•

Runs the console on a TURBOchannel option

•

Boots the operating system using a TURBOchannel option
Note
Not all TURBOchannel options can be successfully tested
with this command. Refer to your option installation
manual for additional information.

The following is the command format for the TURBOchannel
self-test:
>>> t[est] device_name

Return

where:
•

device_name is the TURBOchannel device name in the form
of TCn, where n is the slot number of the TURBOchannel
device you wish to test.

To test a device connected to slot 2, enter the following command:
>>> test tc2

4–72

TEST

On power-up, the script pst-q is run unless the environment
variable diag_quick is set to on. With diag_quick set to ON,
no TURBOchannel testing is done. When the enironment
variable diag_section is equal to 1 or 2, the pst-m script is run.
Graphics options are an exception to this rule, since the cnsltest
script is run as part of console determination.
The following command format should be used to execute a
selected test on a TURBOchannel option.
>>> test device_name test_name
where device_name is the TURBOchannel device name and
test_name is the name of the test you want to run.
The following example lists the contents of the option ROM and
the available scripts for the option in TURBOchannel slot 1.
Object scripts are not executable. All items listed are not to be
used as a script_name.
>>> t[est] tc1 ls

Return

If an asterisk (*) is at the end of a script, then the object script
will fail if selected. If test_name contains a slash or hyphen,
then test_name should be enclosed in double quotes so that the
command line parser treats it as a single argument.
The following example runs a diagnostic script on the option
installed in TURBOchannel slot 1.
>>> t[est] tc1 script_name

Return

The following example executes default test scripts on the option
installed in TURBOchannel slot 1.
>>> t[est] tc1

Return

The following example executes a single test script.
>>> t[est] tc1 pst-m

Return

4–73

TEST

Table 4–21 TC Diagnostic Subtests
Test
Requirements

Test Name

Description

Mode

cnfg

Displays
configuration on
TC option slot

Console
Service

TC option

init

Initializes option in
TURBOchannel slot

Console
Service

TC option

initc

Initializes console
device

Console
Service

TC option

putc

Outputs a character

Console
Service

TC option

cat
script_name
script
script_name

Lists content of a
script

Power-up
Console

TC option

Runs the script
script_name on
the option in the
TURBOchannel slot

Power-up
Console

TC option

Lists subtests

Console
Service

None

The following example initializes TURBOchannel option 1.
>>> t[est] tc1 init

4–74

Return

TEST

Example: test
scsi Command

SCSI diagnostic testing verifies the following:
•

SCSI controller chip

•

SCSI ASIC

•

SCSI bus

•

DMA path in physical and virtual modes

Testing in console mode exercises the data paths between the:
•

CPU and the TURBOchannel interface

•

TURBOchannel interface and the SCSI ASIC

•

SCSI ASIC and SCSI controllers

•

SCSI controllers and the SCSI bus

All reported errors contain a hexadecimal longword of data, and
the FRU code 001 or 1TL to help locate the failing component.
Chapter 8 contains additional FRU code information. Table 4–22
describes each SCSI test and the mode in which it is run.
Table 4–22 SCSI Diagnostic Subtests
Test Requirements

Test Name

Description

Mode

asic

Tests the SCSI ASIC
registers

Console
Service

SCSI
terminator
or device

device2

Tests SCSI devices

Service

SCSI
terminator,
media in
device

erase

Specifies the Hard
Disk Eraser Utility

Console
Service

RZnn hard
disk

format

Specifies the Floppy
Formatter Utility

Console
Service

RX26
removablemedia drive

2 Removable-media drive must have media installed before testing.

(continued on next page)

4–75

TEST

Table 4–22 (Cont.) SCSI Diagnostic Subtests
Test Requirements

Test Name

Description

Mode

init

Initializes the drive

Console
Service

SCSI device

interrupt1 Tests the interrupt
logic

Console
Service

SCSI
terminator,
device

register1

Tests SCSI
controller registers

Console
Service

SCSI
terminator,
device

transfer

Tests data transfers
across the SCSI bus

Console
Service

SCSI device

verify

Specifies the Disk
Verifier Utility

Console
Service

RZnn hard
disk

Lists subtests and
options

Console
Service

None

1 Does not require the presence of a device on the SCSI bus.

The following is the format of the test scsi command:
>>> t[est] scsi test_name
Result (on error):
?? 001 SCSI xxxxxxxx

4–76

Return

TEST

Example: test
isdn Command

The ISDN diagnostic tests test both ISDN and audio
functionality. Table 4–23 describes each ISDN test and the
mode in which it is run.
Table 4–23 ISDN Diagnostic Subtests
Test
Requirements

Test Name

Description

Mode

a_loop

Tests analog loopback.

Console
Service

None

d_loop

Tests internal digital
audio loopback.

Service

None

DMA

Tests DMA.

Console
Service

None

init

Initialize ISDN chip.

Console
Service

None

int

Interrupt test.

Console
Service

None

playback

Plays back the recorded
message.

Service

Handset

record

Prompts you to speak
into handset. A short
message is saved in
memory and then
played back through
the speaker.

Service

Handset

reg

Tests internal registers.

Console
Service

None

repeat

Allows you to speak
into the handset
and hear your speech
repeated.

Service

Handset

tone
?

Tests audio output.

Service

Handset

Lists subtests.

Console
Service

None

The following is the command format for the ISDN test:
>>> t[est] isdn test_name

Return

4–77

TEST

Result (on error):
?? 001 ISDN xxxxxxxx
The following example tests the audio record feature:
>>> test isdn record

Example: test
cxt Command

Return

Graphics (CXT) diagnostic testing is performed when the system
is in power-up mode, e.g., when power is first applied to the
system. A graphics pattern test is displayed. All reported errors
contain a hexadecimal longword of data, and the FRU code 001
to identify the failing component.
Table 4–24 CXT Diagnostic Subtests

Test Name

Description

Mode

Test
Requirements

patt-v

Runs the CXT (graphics)
pattern test

Power-up

None

The following is the command format for the CXT test:
>>> t[est] cxt test_name
Result (on error):
?? 001 CXT xxxxxxxx

4–78

Return

5
Using the Password Security Feature
Chapter Overview
In This Chapter

This chapter presents information on the following topics:
•

Secure Console Commands

•

Invoking the Password Security Feature

•

Changing, Erasing, and Disabling the Password

Purpose of
the Security
Feature

If the password security feature is not used, whenever a user
enters console mode, he or she can use all of the privileged
console commands, such as halt, set, deposit, and boot. The
password security feature allows you to restrict access to these
key console mode functions.

Before You Use
the Security
Feature

Before making your system secure, determine who will have
access to privileged commands once you enable the security
feature. Whoever requires privileged access to the system will
need to know the password that you enter.
If your operating system is running, use the shutdown
procedures in your operating system documentation to shut
it down.

5–1

Secure Console Commands

Secure Console Commands
Privileged
Commands

Once you invoke the password security feature and change the
secure system jumper, privileged console commands become
protected. That is, you can access these commands only if you
log in to the system with the login command at the console
prompt (>>>).
In general, any commands that modify memory and registers,
or that transfer CPU control from the console monitor to
another program, such as boot (with parameters) or start,
are considered privileged commands. Once you have access to
privileged commands, access continues until you disable the
password. (See the section entitled Disable the Password in this
chapter.)

List of
Commands

Table 5–1 lists both privileged and non-privileged console
commands.
Table 5–1 Console Command Access
Privileged Commands

Non-privileged Commands

boot (with parameters)
deposit

boot (without parameters)
login (to allow password entry to
the privileged state)

5–2

examine

continue (if you inadvertently push
the halt button, this command
lets you continue operations in a
non-privileged mode)

halt
initialize
repeat
set
show
start
test

help
–
–
–
–
–
–

Invoking the Password Security Feature

Invoking the Password Security Feature
Steps to
Making the
System Secure

Making your DEC 3000 Model 300 Series AXP system secure
requires software and hardware tasks. Table 5–2 describes the
steps required to secure your system.
Table 5–2 Steps to Making the System Secure
Step

Description

Enter a password

Enable security

Move the secure system jumper

Antistatic
Precautions

Do not perform any tasks inside the system unit without
attaching the antistatic wrist strap to your wrist and the system.
Refer to the section entitled CAUTION: Static Discharge in
Chapter 2.

Enter a New
Password

Your system arrives from the factory without a password. The
password you enter must be a character string of exactly 16
hexadecimal characters (0 through 9 and A through F). To enter
a password on your system, enter the commands shown in
Table 5–3 starting at the console prompt (>>>).
Table 5–3 Entering a Password
Enter this command:

System responds...

>>> set password
PSWD1> new_password Return
PSWD2> new_password Return

PSWD1>
PSWD2>
>>>

As you enter the password, what you type does not display, or
echo, on the screen. If the two passwords you entered match,
your password is preserved in nonvolatile memory, which means
that the system saves your password value even when the
system unit is turned off.

5–3

Invoking the Password Security Feature

If the two passwords you enter do not match, the console displays
the following error message:
? 30 ILL PSWD
In this case, enter the set password command again as described
above.

Note Your
Password

Be sure to make a note of your password and store it in a secure
place. If you forget your console mode password, refer to Erase
The Password, later in this chapter, or call your Digital service
representative.

Enable the
Password
Security
Feature

Once you have entered and confirmed your password, check to be
sure the secure parameter is set to on, as follows:
>>> show secure

Return

SECURE = OFF
If, as in the example above, the password security feature is not
enabled, set it to on, as follows:
>>> set secure on

Return

SECURE = ON

Before You
Move the
Secure System
Jumper

5–4

After entering a password and enabling the secure parameter,
you must move the secure system jumper, on the system module,
to the enable position to complete the security feature.
Before you move the secure system jumper, be sure you complete
the following steps:
Step

Action

Halt the system, if necessary, to display the console
prompt (>>>). (See Chapter 2.)

Turn off your equipment. (See Chapter 2.)

Remove the system unit cover. (See Figure 2–6).

Attach the antistatic wrist strap.

Invoking the Password Security Feature

Locate the
Secure System
Jumper

Figure 5–1 shows the secure system jumper, labeled W3 on
the system module. In the enabled position, the jumper is
attached to pins 1 and 2, counting from left to right. In the
default disabled position, the jumper is attached to pins 2 and 3,
counting from left to right.
Figure 5–1 The Secure System Jumper

! Enabled
" Disabled
Move the
Jumper

MLO-010747

To use the password security feature, move the jumper to the
enabled position, pins 1 and 2, using tweezers or another small
tool.

5–5

Invoking the Password Security Feature

Restore the
System

After you move the jumper, complete the following steps to
restore the system:
Step

Action

Replace the system unit cover. (See Figure 2–31.)

Turn on the system. (See Chapter 2.)

If your system does not halt automatically, press the
halt button to display the console prompt (>>>). (See
Chapter 2.) From this point on, you will need to use the
login command, described in the next section, to access
privileged console commands.

After entering the password, enabling it, and then changing
the secure system jumper on the system module, you must use
the login command to access privileged console commands, as
Table 5–4 describes.
Table 5–4 Entering a Login Command
Enter this command:

System responds...

>>> login Return
PSWD0> password Return

PSWD0>
>>>

The variable password is the password you issued with the set
password command. If you enter the password incorrectly, the
system responds with this message:
? 30 ILL PSWD
In this case, enter the login command again as described in
Table 5–4.

5–6

Changing, Erasing, and Disabling the Password

Changing, Erasing, and Disabling the Password
Change the
Password

To change the password, enter the set password command, your
old password, and your new password as shown in Table 5–5.
The password must be exactly 16 hexadecimal characters, 0
through 9 and A through F.
Table 5–5 Changing a Password
Enter the following:

The system responds...

>>> set password
PSWD0> old_password Return
PSWD1> new_password Return
PSWD2> new_password Return

PSWD0>
PSWD1>
PSWD2>
>>>

If the two new passwords you enter are the same, your password
is changed.
If the two passwords do not match, the system displays:
? 30 ILL PSWD
Try the procedure again.

Erase The
Password

You can erase the current password without knowing what it is.
Therefore, if you forget your password, you may want to erase
it and enter a new one. To erase the current password, enter
the deposit command with the exact parameters shown in the
following example. There is no system response to this deposit
command.
>>> deposit /u/q-n:1 1A0200088 0

Return

5–7

Changing, Erasing, and Disabling the Password

Caution
When you turn on the system, the firmware is loaded
into and executed from memory. If you did not disable
the flash ROM update jumper, be aware that using
the deposit command to place a value in a location of
memory containing the actual console firmware could
hang the system. To restart the system, turn the power
off and than back on.

Once your password is erased, you can enter a new password as
explained in the section Enter a New Password earlier in this
chapter.

Disable the
Password

To disable the password security feature, you must enter the
login command and your password. Then enter the following
command at the console prompt:
>>> set secure 0

Return

SECURE = OFF
If you then try to log in, the following message is displayed:
?31 PASWD NOTEN

5–8

6
Using an Alternate Console Device
Chapter Overview
Introduction

The alternate console feature of your system lets you direct
console input and output from a graphics monitor to another
device, such as a terminal or printer.

In This Chapter

This chapter covers the following topic:
•

Setting the Alternate Console Feature

6–1

Setting the Alternate Console Feature

Setting the Alternate Console Feature
When to Use
the Alternate
Console
Feature

Task Overview

The following are possible reasons for using an alternate console:
•

You cannot display output on your graphics monitor because
it is not working properly.

•

You want to save a hard copy of the console screen display on
a printer.

Table 6–1 describes the steps for using the alternate console
feature.
Table 6–1 Using the Alternate Console

6–2

Step

Action

Connect a terminal or printer to the synchronous/
asynchronous communications RS-232 port on the back of
the system unit.

Detach your keyboard or change the alternate console
jumper.

Redirect output to the alternate console.

Setting the Alternate Console Feature

Connect a
Terminal or
Printer

To connect a terminal or printer as an alternate console device,
connect the terminal or printer cable to the synchronous/
asynchronous communications port on the system unit, shown in
Figure 6–1.
Figure 6–1 Connecting the Alternate Console to the System

ISD

MLO-009790

6–3

Setting the Alternate Console Feature

Alternate
Console/Printer
Port Settings

The alternate console/printer port on the back of the system unit
is set at the factory to the parameter settings listed in Table 6–2.
These settings cannot be changed.
Table 6–2 Alternate Console/Printer Port Parameters

Disconnect the
Keyboard

Parameter

Setting

Baud rate

9600

Parity

None

Stop bit

Bits per character

To switch to the alternate console by removing the keyboard,
follow these steps:
Step

Action

Turn off the system unit. 1

Wait 10 to 15 seconds.

Disconnect the keyboard/mouse extension cable from the
back of the system unit.

Turn on the system.
Output is automatically transferred to the alternate
console device. In most cases, this is a terminal, which
has its own keyboard.

If you want to use the graphics terminal as well as the
alternate console device, reconnect the keyboard/mouse
extension cable.
If you are running the operating system, however, you
cannot change from one console to the other. You can do
this only from console mode (>>>).

1 If you were using a graphics monitor to display console output before you

connected an alternate console device, you must restart your system to redirect
console output. If you do not restart your system, the console output will not
display on the terminal or printer you connected.

Note that the system automatically displays its configuration
every time it is turned on.

6–4

Setting the Alternate Console Feature

Or, Change
the Alternate
Console
Jumper

To switch to the alternate console by changing the alternate
console jumper, remove the system unit cover (see Chapter 2),
and reset the jumper, shown in Figure 6–2 and labeled W2.
Note
Do not perform any tasks inside the system unit without
attaching the antistatic wrist strap to your wrist and to
the system, as shown in Figure 6–2.

By setting the jumper, you can select either of the following ports
for console output:
•

The graphics port: pins 1 and 2 (default)

•

The serial port for an alternate console device: pins 2 and 3

(Pins 3 and 4 are reserved.)
Figure 6–2 Alternate Console Jumper

MLO-009789

6–5

Setting the Alternate Console Feature

Restart the
System

After you reset the jumper, you must restart the system to
redirect the console output. The system automatically displays
the show config display. From here on, the system will always
come up on the alternate console when you start it.

To Access
Console Output
via the Network

Console output can also be accessed via the network. Thus, you
can remotely troubleshoot the system or use a remote console
when no local console is available.
Note that some console tests and commands, such as the memory
diagnostic, cause the network connection to be terminated
because the commands use the network device, or they cause a
connection timeout at the remote node. If this occurs, you will
have to turn the system off and then back on.
To access console output via the network:

6–6

Step

Action

Obtain the hardware Ethernet address of the system.

Obtain access to an operating system on the same
Ethernet segment as the DEC 3000 Model 300 Series
AXP System (the systems cannot be separated by a bridge
or router).

Set the following system parameters:
•

A console password

•

set mop, set trigger

Setting the Alternate Console Feature

To connect to the console:
Step

Action

Log into the user account (no special privileges are
required).

Type the following commands for OpenVMS AXP only:
$ mcr ncp

Return

;Enters the Network Control Program (NCP)

NCP> show known circuits

Return

;Shows available circuits
;you can connect through

NCP> connect via circuit_name service password xxxx
physical address 08-00-2B-XX-XX-XX Return
>>> Ctrl/D

Return

;Disconnects console

NCP> exit

Return

;Exits NCP

$ lo

Return

;Logs off the system

6–7

7
Troubleshooting by Visual Inspection
Chapter Overview
Introduction

Though your DEC 3000 Model 300 series system is a highquality, thoroughly tested product, it is also an electrical device
that may on occasion exhibit a problem. The tables in this
chapter can help you quickly identify the problem with a visual
check, and possibly fix the problem. If you cannot identify the
problem using these tables, try the more advanced procedures
described in Chapter 8.
This chapter also describes how to clean the system.

Before You
Begin

Before you proceed with this chapter:
1. Verify the problem as follows:
a. Turn off all expansion boxes.
b. Turn off the monitor and all peripheral devices, such as
printers and modems.
c.

Turn off the system unit.

d. Check that all cables and cords are correctly connected at
both ends.
e.

Turn the equipment back on in the following order:
1. Any storage expansion box
2. Printer
3. Monitor
4. System unit

7–1

Chapter Overview

2. Adjust the brightness and contrast of your monitor.
If your system is still not working correctly after completing the
previous steps to verify the problem, use the troubleshooting
tables to identify the problem.
If the power-up graphics display appears, followed by the console
prompt (>>>), try starting your operating system.

Using the Troubleshooting Tables
Introduction

Use the information in this section to help locate system
problems. The following tables do not identify all possible
problems with the system, nor do the actions suggested remedy
all problems, but they are useful for many common problems.
To use the troubleshooting tables, follow these steps:
1. Find the problem your system is having in the Symptom
column in the following tables.
2. Check the conditions for that symptom in the Possible Cause
column.
3. Follow the advice in the Corrective Action column.

7–2

Using the Troubleshooting Tables

System
Problems

If you are having trouble with your entire system, locate the
problem in Table 7–1.

Table 7–1 Preliminary Troubleshooting of System Problems
Symptom

Possible Cause

Corrective Action

Window display does not
appear on the screen.
(System does not boot.)

Your software is not installed.

See your software documentation
for installation instructions.
System startup has failed. Check
the status of the diagnostic display
lights, described in Chapter 8, or
refer to the Service Guide or your
Digital service representative.

Power indicator light is off
and fans are not running.

Power cord is not connected.

Check the power cord connections
at both ends.

Defective power supply.

Contact your Digital service
representative.

Power indicator light is
off, but fans are running.

—

Contact your Digital service
representative.

Power-up graphics display
does not appear after 1
minute and the diagnostic
display lights display
 .

Monitor is not turned on.

Turn on the monitor. See Chapter 8
for additional corrective actions.

Power-up graphics display
does not appear and the
diagnostic display lights
display  .

SROM jumper setting is
incorrect.

Contact your Digital service
representative.

No diagnostic display
lights after startup.

Possible defective system
module, or defective cable.

See Chapter 2 for information on
the location of the system module
and cables. Reseat the system
module, ensure that all cables have
a tight fit in their connectors, and
restart the system.

Startup display contains
question marks or an error
message.

Possible system error.
Loose cable connections.

Refer to Chapter 4 for information
on running diagnostic tests.

(continued on next page)

7–3

Using the Troubleshooting Tables

Table 7–1 (Cont.) Preliminary Troubleshooting of System Problems
Symptom

Possible Cause

Corrective Action
If a ?? appears next to NI, the
Ethernet cable may be loose.
If a ?? appears next to SCC, then
the keyboard and mouse cables
may be loose in the keyboard/
mouse connector block, or the
keyboard/mouse connector block
cable connector may not be firmly
attached to the system unit.

System does not boot at
startup.

7–4

Software is not installed.

Install the system software. Refer
to the software documentation for
installation instructions.

Default recovery action is set
to halt.

Refer to Chapter 4 to change the
default recovery action to boot the
system from the system disk.

Incorrect boot device was
specified.

Change the default boot device
(bootdef_dev) parameter, explained
in Chapter 4.

Boot device is not properly
configured.

Enter a show device command as
Chapter 4 describes and check to
see that all devices are configured
properly. If not, check the SCSI
IDs and the SCSI cables. Refer to
Chapter 2.

Software problem.

Refer to your operating system
documentation. Call your Digital
service representative.

Using the Troubleshooting Tables

Monitor
Problems

If you are having trouble with your monitor, locate the problem
in Table 7–2.

Table 7–2 Troubleshooting Monitor Problems
Symptom

Possible Cause

Corrective Action

No display appears on the
monitor screen.

Monitor is not turned on.

Check that the monitor on/off switch
is on. Check that the monitor power
cord is connected at both ends.

Wall socket may not be
operative.

Try a different wall socket, or try
an electrical device that you know
works in the wall socket.

Contrast and brightness
controls are set too low to
see the screen display.

Adjust the contrast and brightness
controls. Refer to the monitor guide
for more information.

System module or graphics
board failure.

Refer to Chapter 4 for information
on running diagnostic tests.

Monitor video cable is not
connected.

Check that the monitor cable is
connected at both ends.
If the problem persists, contact your
Digital service representative.

Display is distorted.

System did not pass startup
test.

Refer to Chapter 4 and Chapter 8 for
information on running diagnostic
tests or contact your Digital service
representative.

Monitor is defective.

Contact your Digital service
representative.

Your color monitor has six
connectors, three marked
Video In, and three marked
Video Out.

Ensure that the monitor video cable
is connected to the three Video In
connectors.

7–5

Using the Troubleshooting Tables

Mouse/Tablet
Problems

If you are having trouble with your mouse or other pointing
device, locate the problem in Table 7–3.

Table 7–3 Troubleshooting Mouse/Tablet Problems
Symptom

Possible Cause

Corrective Action

Mouse or optional tablet
pointer does not appear on
screen, or monitor does not
respond to pointing device
commands.

Ctrl/F3 was pressed by
mistake, and system pointer
mode is off.

Press Ctrl/F3 again to restart
the pointer mode.

System boots operating
system, but mouse or optional
tablet pointer does not appear
on the screen. Or, monitor
does not respond to pointing
device commands.

Pointing device cable is
installed incorrectly or is
loose.

Turn off the system. Unplug
and then install the cable. Turn
on the system.

Pointing device is faulty.

Replace the pointing device.

The system is in console
mode ( >>> ); no pointer
appears on the screen.

Correct condition. No action
necessary.
Change the system to program
mode by entering boot at the
console prompt ( >>> ).

7–6

Using the Troubleshooting Tables

Keyboard
Problems

If you are having trouble with your keyboard, locate the problem
in Table 7–4.

Table 7–4 Troubleshooting Keyboard Problems
Symptom

Possible Cause

Corrective Action

Keys do not work.

Hold Screen key is active.
Hold Screen light is on.

Press the Hold Screen key to
release hold on screen.

Keyboard cable is loose or not
connected.

Check the keyboard cable at
both ends.

Keyboard has failed.

Replace the keyboard. If the
problem persists, contact your
Digital service representative.

SCSI Device
Problems

If you are having trouble with a SCSI device, such as an internal
drive, or an expansion box, locate the problem in Table 7–5.

Table 7–5 Troubleshooting SCSI Device Problems
Symptom

Possible Cause

Corrective Action

An installed drive does not
work or is not recognized by
the system.

Two SCSI identifiers are set
to the same number.

Enter the show device
command as Chapter 4
describes. If a drive is not
recognized, reset each SCSI ID
to a unique number.

You turned on the system
unit before you turned on
your expansion box.

Turn off the entire system; turn
equipment back on beginning
with the expansion box.

Loose cables.

Check to make sure all cables
are connected.

Defective drive.

Refer to Chapter 4 for
information on running
diagnostic tests.

A problem exists with the
fixed disk.

Refer to Chapter 4 for
information on running
diagnostic tests.

Software does not boot from
the fixed disk drive.

(continued on next page)

7–7

Using the Troubleshooting Tables

Table 7–5 (Cont.) Troubleshooting SCSI Device Problems
Symptom

Software installed in the
diskette drive does not work,
or a diskette read or write
error message is displayed.

Network
Problems

Possible Cause

Corrective Action

Default boot device is set
incorrectly.

See Chapter 4 to set or change
the default boot device.

Recovery action may be set to
halt.

See Chapter 4 to change the
default recovery action.

A problem exists with the
software (if installed) on the
fixed disk.

Refer to your software
documentation for help.

No diskette is in the diskette
drive.

Insert a software diskette. See
your software documentation.

Diskette was inserted
incorrectly.

Check that the write-protect
notch on the diskette is to your
left when you insert the diskette
and that the label is up.

Diskette is damaged or does
not contain software.

Try another diskette that
contains software.

Two SCSI identifiers are set
to the same number.

Reset each SCSI ID to a unique
number.

If you are having trouble with your network, locate the problem
in Table 7–6.

Table 7–6 Troubleshooting Network Problems
Symptom

Possible Cause

Corrective Action

NI error message is displayed
when verifying Ethernet.1

No Twisted-pair cable was
installed.

Attach a Twisted-pair cable.

Ethernet cable connection is
loose.

Check that all connections
on the Ethernet segment are
secure.

1 After you solve an NI problem, type

test ni and press the Return key. This either clears the error or
displays a message to let you know the problem still exists.
(continued on next page)

7–8

Using the Troubleshooting Tables

Table 7–6 (Cont.) Troubleshooting Network Problems
Symptom

Possible Cause

Corrective Action

Cannot boot from the
network.

Local network problem.

Problem is most likely caused by
the customer’s server system or
the network.

Defective NI interface.

Refer to Chapter 4 for
information on running
diagnostic tests.

Network connection

If you are using an AUI or
ThinWire adapter to convert
your network connection from
10BASE-T to another network
protocol, turn off the heartbeat
in the network transceiver
(DELNI) to eliminate the
problem, or contact your Digital
service representative.

Data transfer problems.

Table 7–7 Troubleshooting Audio Problems
Symptom

Possible Cause

Corrective Action

No audio tones from the
system when it is turned on.

Defective sound chip.

Refer to Chapter 4 for
information on running
diagnostic tests.

7–9

Cleaning Your System

Cleaning Your System
How to Clean
the System Unit

In some cases a problem with your system may be as simple as
dust or spilled liquid.
To clean the system unit:
1. Clean your system unit regularly by wiping dust and
particles from it with a soft cloth.
2. If you inadvertently spill liquid inside the unit, turn off the
system and contact your Digital Service representative.

How to Clean
the Keyboard

To clean the keyboard:
1. Disconnect the keyboard from the system unit and clean with
a soft cloth.
2. If you spill water on it, wipe the excess off immediately, turn
the keyboard over to drain, and let it dry for several hours
before you reconnect it.

How to Clean
the Mouse

To clean the mouse:
1. Remove the cover plate.
2. Remove the rubber ball from the mouse unit, clean with
lukewarm water, and dry off.
3. Return the rubber ball to the mouse unit.

7–10

8
Advanced Diagnostics
Chapter Overview
Introduction

This chapter describes more detailed troubleshooting procedures.
During power-up, diagnostic error reporting is done in three
stages:
1. Preliminary initialization, and a test that executes the serial
ROM (SROM) code.
2. Main console power-up and self-tests.
3. More extensive tests the user can run from the main console,
using the test command. (See Chapter 4).

Before You
Begin

Before you proceed with this chapter:
1. Be sure you have gone through the visual inspection
procedures described in Chapter 7.
2. Record the following information on the Handling Problems
Worksheet at the end of this chapter:
•

The serial number and model number of your system.
The numbers are printed on a label located on the back
of the system above the monitor connector.

•

The status of your system, using the checklist on the
Handling Problems Worksheet.

•

The status of the internal diagnostic light display
pattern.

8–1

Preliminary Power-up Test Displays

Preliminary Power-up Test Displays
Power-up
Problems

When you turn on the system, the SROM (serial ROM) code
performs the following preliminary diagnostic tests:
•

Memory sizing

•

I/O

•

Cache

If no fatal errors are encountered, the SROM code loads the
main console firmware from the flash ROM into main memory.
If the system stops executing because of a fatal error before it
reaches main console mode, messages will not be displayed on
your screen. However, you may be able to determine the problem
by examining the diagnostic display lights (light-emitting diodes,
referred to as LEDs, and described in the next section).

Location of
Diagnostic
Display Lights

8–2

Diagnostic display lights are the eight red lights located inside
the system unit.
Figure 8–1 shows the location of these LEDs in the system. You
should be able to read them through the air vents on the side of
the system unit cover without removing the cover. If you have
trouble seeing the lights, however, remove the system unit cover,
as described in Chapter 2.

Preliminary Power-up Test Displays

Figure 8–1 Position of Diagnostic Display Lights

3 2 1 0

MLO-009795

Display Light
Patterns

•

When you power up the system, all lights come on and
flash through a sequence of patterns, which are binary
representations of the hexadecimal codes. If a problem is
detected during system power-up, the lights are lit in a
pattern that indicates either the current system status or a
problem.

•

When power-up tests have completed successfully and the
system is at console mode (>>>), the lights are lit in the
following binary pattern:
on on off on
7 6 5 4

on on off on
3 2 1 0

[OR]

In hexadecimal code, this pattern is DD, where the first D
refers to the left set of four lights; the second D refers to the
right set of four lights.
•

When the operating system is running, all diagnostic lights
should be off.

•

Refer to DEC 3000 Model 300 Series AXP Service Guide for
a complete listing of hexadecimal codes, their binary (LED)
equivalent, and their meaning.

8–3

Preliminary Power-up Test Displays

Correcting the
Problem

If the system stops before successful completion of the
preliminary tests, the lights display other patterns. To correct
the problem, check to see that all:
•

Modules inside the system unit are seated firmly

•

Cables are securely connected to the correct ports

•

Power cables are plugged into the appropriate outlet

•

Power switches are on

If these actions do not correct the problem, record the LED
patterns on the appropriate section of the Handling Problems
Worksheet at the end of this chapter and call your Digital service
representative.

Post-Powerup
LEDs

Even after the console firmware is loaded, the system may stop
executing before it is able to display messages on your screen.
This may happen because not all SROM tests pass (this displays
LED codes ff through f0, and 20).
Table 8–1 lists the hexadecimal values of the LED codes and
lists the category of the code.
Table 8–1 Console LED Codes
Code

Category of Code

f0 through ff, and 20

SROM Power-up sequence

30 through 3F

ASIC

20 through 2f

Memory

3A through 3E

TOY clock or NVR

40 through 4f

SCC

50 through 5F

60 through 6F

SCSI

70 through 7F

ISDN

81 through 8C

CXT (graphics)

90 through 9A

MIPS Emulator

If no fatal errors occur, the console firmware is loaded and any
further problems display a message on the screen.

8–4

Preliminary Power-up Test Displays

Error Messages

When the power-up tests are successful and the LEDs display
the DD code, you are running at console mode (>>>). At this
point, the system displays error messages on your screen if:
•

It encounters problems

•

You enter the show config command

•

You enter the show error command

An error message is displayed on the screen in the following
format:
?? fru_code error_code message
For example:
?? 003 0050 (ptr(0) = Not Present keybd(2) = Not Present
Where:

FRU Codes

Indicates an error has occurred.

003

Is a FRU code indicating that the keyboard is the
problem.

0050

Is an error code that is followed by a more detailed
message.

An FRU code is a message that indicates which field-replaceable
unit (FRU) is causing the problem. Table 8–2 describes the most
common FRU codes. If your system displays an error code that
you do not understand, or that is not listed in Table 8–2, refer to
your Service Guide, call the Digital hotline, or call your Digital
service representative for help.

8–5

Preliminary Power-up Test Displays

Table 8–2 FRU Codes
FRU
Code

Meaning

Action

000

Unknown, or diagnostic
test does not support
FRU reporting.

–

001

System and/or CPU
modules are most
probable FRUs.
You could also be
having audio or system
option problems.

Visually inspect all components to
make sure they are not defective and
are securely connected. If necessary,
replace the system module or
CPU, or call your Digital Services
representative. Check to see if the
audio cable is installed correctly.

003

Keyboard is most
probable FRU.

Be sure the cable is installed
correctly in the connector block,
and that none of the keys are stuck.

004

Mouse or pointing
device is most probable
FRU.

Be sure the cable is installed
correctly in the connector block,
and that none of the buttons are
stuck.

010

TURBOchannel option
in slot 0 is most
probable FRU. (Models
300/300X/300LX only)

Be sure the TURBOchannel cable is
secure and the module is seated
correctly. Visually inspect the
module to be sure it has no defective
components. If necessary, replace
the TURBOchannel module.

011

TURBOchannel option
in slot 1 is most
probable FRU. (Models
300/300X/300LX only)

Be sure the TURBOchannel cable is
secure and the module is seated
correctly. Visually inspect the
module to be sure it has no defective
components. If necessary, replace
the TURBOchannel module.
(continued on next page)

8–6

Preliminary Power-up Test Displays

Table 8–2 (Cont.) FRU Codes
FRU
Code
8xy

Meaning

Action

8xy is a three-digit
hexadecimal number
representing the bank
number and SIMM
with the failing data.

Be sure all SIMMs are installed in
the correct positions and are secure.
Rerun the test to verify.

8 is the extended error
code prefix
x = bank 0 to 7
y = SIMM 0 or 1 for
data errors in one
SIMM
8 is for data errors
in both SIMMS of a
SIMM pair
F if unable to isolate
the error to the SIMM
or SIMM pair.

(continued on next page)

8–7

Preliminary Power-up Test Displays

Table 8–2 (Cont.) FRU Codes
FRU
Code

Meaning

Action

Value

SIMM

8,0,0

8,1,0

8,0,1

8,1,1

8,2,0

8,3,0

8,2,1

8,3,1

8,4,0

8,5,0

8,4,1

8,5,1

8,6,0

8,7,0

8,6,1

8,7,1

1 SIMM 0 is the first SIMM next to to the TURBOchannel connector.
2 SIMM 7 is the last SIMM at the edge of the module.

(continued on next page)

8–8

Preliminary Power-up Test Displays

Table 8–2 (Cont.) FRU Codes
FRU
Code
1TL

Meaning

Action

SCSI device on SCSI
bus A, Target T, Logical
unit L

For the internal SCSI:
•

Be sure the power cable and
the internal SCSI cable are
connected securely to the system
module.

•

Inspect all cables for possible
defects.

•

Check all jumpers.

•

If necessary, replace the disk at
address DKA0, for example.

For the external SCSI, be sure there
are no cable defects and the cables
are connected securely.

Error Code

The DEC 3000 Model 300 Series AXP Service Guide lists all
the categories of error codes you may see while in console
mode, according to the FRU that caused the problem. The
FRU is identified by the FRU code in the error message. (See
Table 8–2).
For example, in the following message, error code 003 (an
SCC communications code) indicates that the problem FRU
is the keyboard. See Table 8–2 and Table 8–3 for additional
information.
?? 003 0050 ptr(0) = Not Present keybd(2) = Not Present
Also, look in the SCC LED Codes table in the DEC 3000 Model
300 Series AXP Service Guide to find the error code of 50. This
code indicates that the specific problem is the LK401 keyboard.

8–9

Preliminary Power-up Test Displays

Table 8–3 shows the steps to take for a given console diagnostic
test failure.
Table 8–3 Console-Level Problems

8–10

Diagnostic Test

Action

CXT

Ensure proper connection of monitor cable.
Ensure proper seating of the CPU module.
Reexecute CXT diagnostic to verify.

ASIC

Ensure proper seating of the CPU module
and reexecute the ASIC diagnostic to
verify.

TOY clock/ NVR

Ensure proper seating of the CPU module
and reexecute the NVR diagnostic to verify.

ISDN

Ensure proper seating of the CPU module
and reexecute the ISDN diagnostic to
verify.

SCC

Add the modem loopback connector.
Reseat keyboard/mouse extension cable.
Reseat the CPU module connection.
Reexecute SCC diagnostic to verify.

SCSI

Ensure proper device connection.
Reseat the SCSI connector to the system
module.
Reexecute SCSI diagnostic to verify.
Be sure all SCSI-2 IDs are unique.

Ensure proper seating of the CPU module.
Add the 10BASE-T loopback connector (if
failure is between error codes A0 to AC).
Reexecute NI diagnostic to verify.

Memory

Reseat memory SIMMs.

TCn

Reseat and/or replace the TURBOchannel
option in the specified slot.

Messages from Other Tests

Messages from Other Tests
Refer to Chapter 4 for details of the set and test commands.
Tests are run in one of three diagnostic modes, each of which is
either set automatically or by using the console set command, as
follows:
•

The set diag_section 0 command is applied automatically
during power-up diagnostic testing.
After power-up is complete, you are automatically switched
to set diag_section 1.

•

The set diag_section 1 command initiates the default
customer diagnostic test, entered after power-up tests have
completed and the system is running.

•

The set diag_section 2 command initiates a service
diagnostic test, which provides more detailed testing. You
may need to connect loopbacks to run some of these tests.

8–11

Problem Worksheet

Problem Worksheet
DEC 3000 AXP
Handling Problems Worksheet
DEC service representative telephone number:
300 300L
Serial #:
300X 300LX
System Status (indicate which applies):
Model (circle one):

Item:
System plugged into outlet
Power indicator light lit
Diagnostic display lights lit*
Monitor power light lit
Keyboard working
Mouse working
Console prompt appears
Startup error message displayed
Operating system boots
Software is frozen

Yes

*Indicate diagnostic display lights here:
7

5 4

3 2 1 0

Diagnostic test screen display:

Actions taken so far:

Additional notes:

MLO-011300

8–12

A
Hardware Specifications
Appendix Overview
In This
Appendix

This appendix provides the following system specifications for
the DEC 3000 Model 300 Series AXP system:
•

Weight and Dimensions

•

Power Specifications

•

General Specifications

•

Environmental Limitations

•

Acoustical Specifications

A–1

System Specifications

System Specifications
Weight and
Dimensions

Table A–1 provides the system unit dimensions.
Table A–1 System Unit Dimensions - Desktop

Power
Specifications

Weight

Height

Width

Depth

8.2 kg (diskless)

9.6 cm

40.0 cm

43.9 cm

(18 lb)

(3.8 in)

(16.0 in)

(17.3 in)

Table A–2 provides the power specifications for the DEC 3000
Model 300 Series AXP System system.
Table A–2 System Power Specifications

A–2

Voltage requirements

120 V/240 V

Voltage tolerance

88 to 132 v/176 to 264 V

Frequency

Single phase: 50 Hz/60Hz

Frequency tolerance

47 to 63 Hz

Watts

260 AC

Maximum running
current

4.0 A/2.0 A

Maximum power
consumption

260 W

System Specifications

General
Specifications

Table A–3 provides various information about the system and its
components and options.
Table A–3 System Specifications
Processor

DECchip 21064 RISC-style microprocessor,
with 256 KB secondary cache.

SIMM memory

64 MB to 256 MB

Optional fixed disk

Two 3½-inch fixed disks

Optional removable-media
drive (RX26)

2.8 MB 3.5-inch, half-height drive

Optional RRD42 compact
disc (CD) drive

External 600-MB 5¼-inch, half-height CD
drive

Optional expansion boxes

BA353, SZ12, SZ16

Interfaces

One single-channel SCSI-2 compliant
controller (SCSI channel A), that supports
both synchronous and asynchronous
devices, one 10BASE-T Ethernet port (10
Mbits/s), one ISDN port, one synchronous
communications/printer/alternate console
port, one audio port.

Dedicated power source
with an isolated ground

Power source must be 110-120V AC or
220-240V AC.

A–3

System Specifications

Environmental
Limitations

Table A–4 provides information about the environmental
conditions in which the DEC 3000 Model 300 Series AXP
System can operate. The term "operating conditions" refers to
a system that is plugged in, turned on and running. The term
"nonoperating conditions" refers to a system that is plugged in,
not turned on, and not running.
Table A–4 System Environmental Specifications
Operating Conditions
Temperature range

10°C to 40°C
(50°F to 104°F)

Temperature change rate

11°C/hr (20°F/hr) maximum

Relative humidity

10% to 90% (noncondensing)

Altitude

0 to 2000 m (0 to 6562 ft) at 36°C (97°F)

Maximum wet bulb
temperature

28°C (82°F)

Minimum dew point

2°C (36°F)

Nonoperating Conditions

A–4

Temperature range

–40°C to 66°C (–40°F to 151°F)

Relative humidity

5% to 95%, (noncondensing)

Maximum altitude

3600 m (12,000 ft)

Maximum wet bulb
temperature

46°C (115°F)

System Specifications

Acoustical
Specifications

Table A–5 lists the English-language acoustical specifications.
Table A–5 Acoustics—Declared Values per ISO 9296 and ISO
7779

Product

Sound Power Level
LwAd , B1
Idle
Operate

Sound Pressure Level
LpAm , dBA (operator position)
Idle
Operate

PE30A

4.7

PE30A +
2xRZ25

4.8

1 1 B = 10 dBA

A–5

B
Internal Options: Specifications and SCSI
ID Settings
Appendix Overview
In this
Appendix

This appendix provides the following option specifications:
•

RX26 Drive Specifications

•

RX26 Diskette Specifications

•

RZ25 Fixed Disk Specifications

•

RZ25L Fixed Disk Specifications

•

RZ26 Fixed Disk Specifications

•

RZ26L Fixed Disk Specifications

•

RZ28 Fixed Disk Specifications

B–1

RX26 Drive Specifications

RX26 Drive Specifications
Weight and
Dimensions

Operating
Conditions

The following table lists the weight and dimensions of the drive:
Weight

Height

Width

Depth

425 g
(0.94 lb)

2.54 cm
(1.00 in)

10.16 cm
(4.00 in)

15.00 cm
(5.91 in)

The following table lists the operating conditions of the drive:
Variable

Operating Level

Temperature change rate

11°C (20°F) per hour, maximum

Temperature range

5°C to 50°C (40°F to 122°F)1

Relative humidity

8% to 80%, noncondensing

Maximum wet bulb
temperature

25.6°C (78°F)

Altitude

–300 m to 3050 m
(–1000 to 10,000 ft) maximum

Power

1.25 watts (read/write)
4.60 watts (seek)

Standby power

0.30 watts

1 Reduce maximum temperature by 1.8°C (5.24°F) for each 1000-meter (3300-foot)

increase in altitude.

B–2

RX26 Drive Specifications

Nonoperating
Conditions

The following table lists the nonoperating conditions of the drive:
Variable

Level

Temperature range

–40°C to 66°C (–40°F to 151°F)

Relative humidity

5% to 95%, noncondensing

Maximum wet bulb
temperature

46°C (115°F), packaged, noncondensing

Altitude

–300 m to 12,200 m (–1000 to 40,000 ft)
max.

RX26 Diskette Specifications
Diskette
Performance

The following table lists the performance of a diskette:
Variable

Description

Data access time

Minimum time: 3 ms
Average time: 15 ms

Data transfer rate

Double density: 250 Kb/s
High density: 500 Kb/s
Extra density: 1000 Kb/s

Seek time

3 ms minimum; 15 ms average

Average latency

100 ms

Number of cylinders

Number of heads

Track density

135 tracks/in

Recording surfaces
per diskette

Sectors per track

9 DD; 18 HD; 36 ED

B–3

RX26 Diskette Specifications

Storage
Capacity

SCSI ID Switch
Settings

The following table lists the storage capacity of an RX26
unformatted diskette, depending on the density of the diskette:
Read/Write
Capability

Diskette

Capacity

Double density (DD)
8.89 cm (3½ inches)

737,280 bytes per drive
4608 bytes per track

Read

High density (HD)
8.89 cm (3½ inches)

1,474,560 bytes per drive
9216 bytes per track

Read/write

Extra density (ED)
8.89 cm (3½ inches)

2,949,120 bytes per drive

Read/write

For proper communication between your system and an RX26
drive, your RX26 must have a unique SCSI address setting.
SCSI address settings are determined by the position of
electrical switches located on the sides of the drive.
The SCSI-ID Address Setting
When your RX26 drive arrives from the factory, it should be
preset to the recommended SCSI setting of 5, as shown in
Figure B–1. Figure B–1 also shows all possible SCSI ID settings
for the RX26 drive.
Note
SCSI ID 7 is reserved for the host SCSI controller.

B–4

RX26 Diskette Specifications

Figure B–1 RX26 Switch Settings

O
F
F

2
O

4
12

5
12

3
MLO-010748

! switch settings
" switch settings
When setting SCSI ID addresses for the RX26, remember that no
two devices can be set to the same SCSI ID. Refer to the section
entitled Understanding SCSI IDs in Chapter 2 for additional
information.

B–5

RZ25 Fixed Disk Specifications

RZ25 Fixed Disk Specifications
Weight and
Dimensions

Formatted
Storage
Capacity

Performance

B–6

The following table lists the weight and dimensions of the drive:
Weight

Height

Width

Depth

0.8 kg

4.1 cm

10.2 cm

14.6 cm

(1.8 lb)

(1.63 in)

(4.0 in)

(5.75 in)

The following table lists the formatted storage capacity of the
drive:
Variable

Description

Megabytes per drive

426

Megabytes per surface

47.3

Bytes per track

24,576-37,376 (variable)

Bytes per block

512 bytes

Blocks per drive

832,031

Blocks per track

Spare blocks per track

Spare blocks per drive

14,148

Spare cylinders

Buffer size

60 KB

The following table lists the performance of the drive:
Variable

Description

Transfer rate to/from media

2.1-3.2 MB/sec (variable)

Transfer rate to/from buffer

2.33 MB/sec

Bus asynchronous mode

3.0 MB/sec

Bus synchronous

4.0 MB/sec

RZ25 Fixed Disk Specifications

Operating
Conditions

Variable

Description

Seek time track to track

2½ ms

Seek time average

14 ms

Seek time maximum (full
stroke)

28 ms

Average rotational latency

6.8 ms

Rotational speed

4412 ± 0.5%

Start time

20 s maximum

Stop time

30 s maximum

Interleave ratio

1:1

The following table lists the operating conditions of the drive:
Operating Variable

Operating Level
1

Ambient Temperature

10°C to 55°C
(50°F to 122°F)

Relative Humidity

8% to 80%, noncondensing

Maximum wet bulb
temperature

25.6°C
(78°F)

Minimum dew point
temperature

2°C (36°F)

Altitude

30.48 m to 304.78 m
(100.58 ft to 1005.77 ft) at 36°C (96°F)

1 Reduce maximum temperature by 1.8°C (3.24° F) for each 1000-meter (3300-foot)

increase in altitude.

B–7

RZ25 Fixed Disk Specifications

Nonoperating
Conditions

SCSI ID Jumper
Settings

B–8

The following table lists the nonoperating conditions of the drive:
Nonoperating Variable

Level

Ambient Temperature

–40°C to 66°C
(–40°F to 151°F)

Relative Humidity

8% to 95%, noncondensing

Maximum wet bulb
temperature

46°C (115°F)

Minimum dew point
temperature

2°C (36°F)

Altitude

-300 m to 3,000 m (-984.3 ft to 9843 ft)
at 36°C (96°F)

Figure B–2 shows the SCSI ID settings for the RZ25 fixed disk
drive. There are three jumper locations, J5, J6, and J7. Use J5
only. Remember, no two devices can be set to the same SCSI ID.
Refer to Chapter 2 for additional information.

RZ25 Fixed Disk Specifications

Figure B–2 RZ25 Jumper Settings

4
3

MLO-010749

! J5 jumpers
" J7 jumpers
# J6 jumpers
$ jumper settings, SCSI ID 0—3
% jumper settings, SCSI ID 4—7

B–9

RZ25 Fixed Disk Specifications

Table B–1 lists the RZ25 jumper settings for both customer
and Digital Services use; Table B–2 and Table B–3 jumper
settings are provided for Digital Services and self-maintenance
customers. In Table B–1, Out = removed; In =attached.
Table B–1 J5 Jumper Settings
SCSI Address

Out

1 Reserved for host SCSI ID.

Table B–2 J6 Jumper Settings
Jumper Position

Description

J6-1

Factory use only

J6-2

In = Enables motor start option
Out = Drive operation depends on whether a
jumper is installed in J6-3

J6-3

In = Enables motor start option (if J6-2 is out).
Motor start delay is 16 times the drive ID
number in seconds.

J6-4

In = Entire drive is write-protected.

J6-5

In = Parity checking by drive is enabled.

J6-6

Reserved for later use.

J6-7

In = Supplies drive power to SCSI bus, pin 26.
(continued on next page)

B–10

RZ25 Fixed Disk Specifications

Table B–2 (Cont.) J6 Jumper Settings
Jumper Position

Description

J6-8

In = Supplies power only to drive terminators.

Note
If J6 pins 7 and 8 are positioned horizontally (lower
part), the drive takes power from the SCSI bus, pin 26.
Jumpers on both pins 7 and 8 can be in at the same time.

Remove all jumpers from location J7 except jumper 4. Failure to
do so could cause dual SCSI address problems.
Table B–3 J7 Jumper Settings
Jumper Position

Description

J7-1

SCSI ID (use J5 ID setting)

J7-2

SCSI ID (use J5 ID setting)

J7-3

SCSI ID (use J5 ID setting)

J7-4

Jumper must be installed if no cable is
connected.

J7-5

Used for a connection to a remotely located
LED indicator.

B–11

RZ25L Fixed Disk Specifications

RZ25L Fixed Disk Specifications
Weight and
Dimensions

Formatted
Storage
Capacity

The following table lists the weight and dimensions of the drive:
Weight

Height

Width

Depth

0.7 kg

2.5 cm

10.2 cm

14.6 cm

(1.5 lb)

(1.00 in)

(4.0 in)

(5.75 in)

The following table lists the formatted storage capacity of the
drive:
Table B–4 RZ25L Hardware Specifications
Formatted Storage Capacity

Performance

Per drive

535 MB

Per surface

90.7 MB

Bytes per track

48,460 (average)

Bytes per block

512

Spare blocks per track

Spare cylinders

Buffer size

240 KB

The following table lists the performance of the drive:
Performance

B–12

Data transfer rate to/from media

5.25 MB/sec (maximum)

Seek time track to track

1.5 msec

Seek time average

10.5 msec

RZ25L Fixed Disk Specifications

Operating
Conditions

Seek time maximum (full stroke)

23 msec

Average latency

5.4 msec

Rotational speed

5411 rpm 6 0.5%

Interleave ratio

1:1

The following table lists the operating conditions of the drive:
Operating Conditions

Nonoperating
Conditions

Ambient temperature

5°C to 50°C (41°F to 122°F)

Relative humidity

8%–80%

Altitude

305 m to 3048 m (–1000 ft to
10,000 ft)

Maximum wet bulb temperature

28°C (82°F) (noncondensing)

Heat dissipation

8.4W (seeking) 7W
(typical)

Temperature gradient

20°C/hr (36°F/hr)

The following table lists the nonoperating conditions of the drive:
Nonoperating Conditions

SCSI ID Jumper
Settings

Ambient temperature

–40°C to 70°C (–40°F to 158°F)

Relative humidity

5%–95%

Altitude

–305 m to 12,210 m(1000 ft to
40,000 ft)

Maximum wet bulb temperature

46°C (115°F)

Temperature gradient

25°C (45°F/hr)

Figure B–3 shows the SCSI ID settings for the RZ25L fixed disk
drive. You may need to remove the bracket attached to an RZ25L
drive to access the jumper locations. Remember, no two devices
can be set to the same SCSI ID. SCSI ID 7 is reserved for the
host SCSI ID. Refer to Chapter 2 for additional information.

B–13

RZ25L Fixed Disk Specifications

Figure B–3 RZ25L Jumper Settings

MLO-011298

! SCSI jumper settings 0—3
" SCSI jumper settings 4—7

B–14

RZ26 Fixed Disk Specifications

RZ26 Fixed Disk Specifications
Weight and
Dimensions

Formatted
Storage
Capacity

Performance

The following table lists the weight and dimensions of the drive:
Weight

Height

Width

Depth

0.9 kg

4.12 cm

10.2 cm

14.6 cm

(1.9 lb)

(1.625 in)

(4.00 in)

(5.75 in)

The following table lists the storage capacity of the drive:
Variable

Description

Bytes per track

29,640

Megabytes per drive

1050

Megabytes per surface

Buffer size

512 KB

The following table lists the performance of the drive:
Variable

Description

Transfer rate to/from media

2.6 MB/s

Seek time track to track

1 ms

Seek time average

10 ms

Seek time maximum (full stroke)

±20 ms

Average rotational latency

5.6 ms

Rotational speed

5363 rpm

B–15

RZ26 Fixed Disk Specifications

Operating
Conditions

The following table lists the operating conditions of the drive:
Operating Variable
Ambient temperature

Operating Level
1

Relative humidity

10°C to 50°C
(50°F to 122°F)
10% to 90%

1 Reduce maximum temperature by 1.8°C (3.24° F) for each 1000-meter (3300-foot)

increase in altitude.

Nonoperating
Conditions

SCSI ID Jumper
Settings

B–16

The following table lists the nonoperating conditions of the drive:
Nonoperating Variable

Level

Ambient temperature

–40°C to 66°C
(–40°F to 151°F)

Relative humidity

8% to 95%, noncondensing

Figure B–4 shows the SCSI ID settings for the RZ26 fixed disk
drive. SCSI ID 7 is reserved for the host SCSI ID.

RZ26 Fixed Disk Specifications

Figure B–4 RZ26 Jumper Settings

MLO-010750

! SCSI ID jumper settings 0—3
" SCSI ID jumper settings 4—7
When setting SCSI ID addresses for the RZ26, remember no
two devices can be set to the same SCSI ID, see Chapter 2 for
additional information.

B–17

RZ26L Fixed Disk Specifications

RZ26L Fixed Disk Specifications
Weight and
Dimensions

Formatted
Storage
Capacity

Performance

The following table lists the weight and dimensions of the drive:
Weight

Height

Width

Depth

0.49 kg

2.54 cm

10.2 cm

14.6 cm

(1.08 lb)

(1.00 in)

(4.00 in)

(5.75 in)

The following table lists the storage capacity of the drive:
Variable

Description

Bytes per drive

1.05 GB (formatted)

Buffer size

512 KB

The following table lists the performance of the drive:
Variable

B–18

Description

Data transfer rate to/from media

2.7–5.5 MB/sec

Seek time track to track

1 msec

Seek time average

9.5 msec

Seek time maximum (full stroke)

20 msec

Average latency

5.6 msec

Rotational speed

5400 rpm

Interleave ratio

1:1

RZ26L Fixed Disk Specifications

Operating
Conditions

The following table lists the operating conditions of the drive:
Operating Variable
Ambient temperature

Operating Level
1

5°C to 55°C
(41°F to 131°F)

Relative humidity

10%–90% non-condensing

Maximum wet bulb

32°C 90°F

Temperature gradient

20°C 36°F per hour

1 Reduce maximum temperature by 1.8°C (3.24° F) for each 1000-meter (3300-foot)

increase in altitude.

Nonoperating
Conditions

SCSI ID Jumper
Settings

The following table lists the nonoperating conditions of the drive:
Nonoperating Variable

Level

Ambient temperature

–40°C to 66°C
(–40°F to 151°F)

Relative humidity

8%–95% (noncondensing)

Maximum wet bulb

46°C 115°F

Temperature gradient

30°C 55°F per hour

Figure B–5 shows the SCSI ID settings for the RZ26L fixed disk
drive. SCSI ID 7 is reserved for the host SCSI ID.

Note
No special termination is required on workstations.

B–19

RZ26L Fixed Disk Specifications

Figure B–5 RZ26L Jumper Settings

MLO-011299

! SCSI jumper settings 0—3
" SCSI jumper settings 4—7
When setting SCSI ID addresses for the RZ26L, remember no
two devices can be set to the same SCSI ID, see Chapter 2 for
additional information.

B–20

RZ28 Fixed Disk Specifications

RZ28 Fixed Disk Specifications
Weight and
Dimensions

Formatted
Storage
Capacity

Performance

The following table lists the weight and dimensions of the drive:
Weight

Height

Width

Depth

0.9 kg

4.13 cm

10.2 cm

14.6 cm

(1.9 lb)

(1.63 in)

(4.00 in)

(5.75 in)

The following table lists the storage capacity of the drive:
Variable

Description

Megabytes per drive

2104

Gigabytes per drive

2.1

Bytes per track

30,208

Bytes per surface

144,683,520

Buffer size

1024 KB

The following table lists the performance of the drive:
Variable

Description

Data transfer rate to/from media

2.7MB/sec

Interface transfer rate,
synchronous

10 MB/sec

Interface transfer rate, async

5 MB/sec

Seek time track to track

1 msec

Seek time average

10 msec

Seek time maximum (full stroke)

20 msec

Average latency

5.6 msec

Rotational speed

5400 rpm 6 0.5%

B–21

RZ28 Fixed Disk Specifications

Operating
Conditions

Nonoperating
Conditions

SCSI ID Jumper
Settings

B–22

The following table lists the operating conditions of the drive:
Operating Variable

Operating Level

Ambient temperature

5°C to 55°C (41°F to 131°F)

Relative humidity

10%–90%

The following table lists the nonoperating conditions of the drive:
Nonoperating Variable

Level

Ambient temperature

–40°C to 66°C (–104°F to 151°F)

Relative humidity

8%–95% (packaged)

Figure B–6 shows the SCSI ID settings for the RZ28 fixed disk
drive. SCSI ID 7 is reserved for the host SCSI ID.

RZ28 Fixed Disk Specifications

Figure B–6 RZ28 Jumper Settings

MLO-010750

! SCSI jumper settings 0—3
" SCSI jumper settings 4—7
When setting SCSI ID addresses for the RZ28, remember no
two devices can be set to the same SCSI ID, see Chapter 2 for
additional information.

B–23

C
Port Pinouts
Appendix Overview
Introduction

This appendix is for users who want to connect communications
devices to their system. The tables in this appendix explain the
functions of the pins on the communication ports.

In This
Appendix

The following communications ports are listed in this appendix.

•

External SCSI Port

•

10BASE-T Port

•

ISDN Port

•

Keyboard/Mouse or Tablet Port

•

RS-232 Synchronous/Asynchronous Communications Port

#
• Audio Port $

Figure C–1 Communications Ports

ISDN

MLO-010140

C–1

External SCSI Port

External SCSI Port
Pin Layout

Pin-Outs

The following figure shows the pin layout for the external SCSI
port.
25

Table C–1 describes pin usage for the external SCSI port.
Table C–1 External SCSI Port Pin-outs
Pin

Description

Chassis ground

SCSI Bus Data [0]

Chassis ground

SCSI Bus Data [1]

Chassis ground

SCSI Bus Data [2]

Chassis ground

SCSI Bus Data [3]

Chassis ground

SCSI Bus Data [4]

Chassis ground

SCSI Bus Data [5]

Chassis ground

SCSI Bus Data [6]

Chassis ground

SCSI Bus Data [7]

Chassis ground

SCSI Bus Data Parity

Chassis ground

Not used

Term power

Reserved

Chassis ground

Chassis ground
(continued on next page)

C–2

External SCSI Port

Table C–1 (Cont.) External SCSI Port Pin-outs
Pin

Description

Chassis ground

SCSI Bus ATN

Chassis ground

SCSI Bus BSY

Chassis ground

SCSI Bus ACK

Chassis ground

SCSI Bus RST

Chassis ground

SCSI Bus MSG

Chassis ground

SCSI Bus SEL

Chassis ground

SCSI Bus CD

Chassis ground

SCSI Bus REQ

Chassis ground

SCSI Bus IO

C–3

10BASE-T Port

10BASE-T Port
Pin Layout

The following figure shows the pin layout for the 10BASE-T port.
1

MLO-008912

Pin-Outs

Table C–2 describes pin usage for the 10BASE-T port.
Table C–2 10BASE-T Port Pin-outs

C–4

Pin Number

Description

Transmit

Transmit, active low

Receive

Not used

Receive, active low

Not used

ISDN Port

ISDN Port
Pin Layout

The following figure shows the pin layout for the ISDN port.
8

MLO-008611

Pin-Outs

Table C–3 describes pin usage for the ISDN port.
Table C–3 ISDN Port Pin-outs
Pin Number

Description

Not used

Line out, active low

Line in

Line in, active low

Line out

Not used

C–5

Audio Port

Audio Port
Pin Layout

The following figure shows the pin layout for the audio port.

Pin-Outs

Table C–4 describes pin usage for the audio port.
Table C–4 Audio Port Pin-outs
Pin Number

Description

Audio in A

Earphone interface 1 (audio out)

Earphone interface 2 (audio out return)

Audio input B (ground)

This port is pin-compatible with a telephone handset.

C–6

Keyboard/Mouse or Tablet Port

Keyboard/Mouse or Tablet Port
Pin Layout

The following figure shows the pin layout for the keyboard/mouse
or tablet port.
1

Pin-Outs

Table C–5 describes pin usage for the keyboard/mouse or tablet
port. The tablet, keyboard, and mouse interface use the same
physical port.
Table C–5 Keyboard/Mouse or Tablet Port Pin-outs
Pin

Signal

Description

GND

Chassis ground

KEY.TX

Keyboard transmitted data

KEY.RX

Keyboard received data

+12V

Keyboard/tablet power

GND

Chassis ground

MSE.RX

Mouse received data

MSE.TX

Mouse transmitted data

GND

Chassis ground

GND

Chassis ground

Not used

+5V

Mouse power

-12V

Mouse power

GND

Chassis ground

Source

Keyboard

Mouse/tablet

C–7

RS-232 Synchronous/Asynchronous Communications Port

RS-232 Synchronous/Asynchronous Communications Port
Pin Layout

Port Pin-Outs

The following figure shows the pin layout for the RS-232
synchronous/asynchronous communications port.
1

Table C–6 describes pin usage for the synchronous/asynchronous
communications port.
Table C–6 Synch/Asynch Communications Port Pin-outs

C–8

Description

Protective ground

Not used

Transmit data

Transmitter signal element
timing

Receive data

Not used

Request to send

Receiver signal element timing

Clear to send

Not used

Data set ready

Not used

Signal ground

Data terminal ready

Data channel received

Not used

Ring indicator

Not used

Data signal rate selector

Not used

Speed mode indicator

Not used

D
Associated Documents

Introduction

For option and system hardware part numbers, consult your
Digital sales representative.
Not all the following documents are available in every country.
Check with your Digital sales representative for availability.

Associated
Printed
Documents

Table D–1 lists the associated documents and material available
in printed form.
Table D–1 DEC 3000 Model 300 Series AXP System Printed
Documents
Titles

Order Numbers

DEC 3000 Model 300 Series AXP Systems

DEC 3000 Model 300 Series AXP
Hardware Reference Guide

EK–PELCN–OG

DEC 3000 Model 300 Series AXP Service
Guide

EK–PELCN–SV

DEC 3000 Model 300 Series AXP Setting
Up Your System

EK–PELHW–IC

DEC 3000 Model 300 Series AXP Adding
Memory

EK–PELAM–IC

DEC 3000 Model 300 Series AXP Adding
an Internal Fixed Disk Drive

EK–PELAD–IC

(continued on next page)

D–1

Associated Documents

Table D–1 (Cont.) DEC 3000 Model 300 Series AXP System
Printed Documents
Titles

Order Numbers

DEC 3000 Model 300 Series AXP Systems

DEC 3000 Model 300 Series AXP Adding
a Removable-Media Drive

EK–PELAF–IC

OpenVMS AXP Factory Installed
Software (FIS) User Information

EK–A0377–UG

DEC OSF/1 AXP Factory-Installed
Software User Information

EK–SFFIS–UG

TURBOchannel-related Documentation

Smart Frame Buffer TURBOchannel
Module

EK–SFBOM–TC

Smart Frame Buffer Plus Module Owner’s
Guide

EK–SMFBP–SG

ZLX Graphics Accelerator Modules
Owner’s Guide

EK–PIXEL–OG

The ThickWire Ethernet TURBOchannel
Module

EK-TWETH-TC

TURBOchannel Extender Operator’s
Guide

EK-PM32X-EX

TURBOchannel Extender (TCE) Option
Module

EK-TCEIM-TC

SCSI TURBOchannel Option Installation
Kit

EK–PMAZA–UG

DEC FDDIcontroller 700 Installation

EK–DEFZA–IN

FDDIcontroller 700 Release Notes

AA–PJKWA–TE

Dual SCSI Module Owner’s Guide

EK–DSCSE–OG

Dual SCSI Module (PMAZC–AA) Owner’s
Guide

EK–SCSIB–OG

(continued on next page)

D–2

Associated Documents

Table D–1 (Cont.) DEC 3000 Model 300 Series AXP System
Printed Documents
Titles

Order Numbers

Multimedia Documentation

Sound and Motion J300 Owner’s Guide

EK–JXPVS–UG

Multimedia Services for DEC OSF/1 AXP
Installation Guide

AA–Q0ANA–TE

Multimedia Services for DEC OSF/1 AXP
Programmer’s Guide

AA–Q0APA–TE

DEC 3000 Firmware Documentation

Alpha AXP Systems Firmware Release
Notes

AA–PW8YE–TE

Drives

600 MB SCSI CD-ROM Installation
Guide

EK–XCRAA–IG

OpenVMS AXP Version 1.5 Compact Disc
User’s Guide

AV–PQYVA–RE

RX26 Owner’s Reference Card

EK–RX26D–RC

RZ Series Disk Drive Reference Manual

EK–RZXXD–RM

RZ Series Disk Drive Installation Guide

EK–DRZ01–IG

RRD42 Compact Disc Drive Owner’s
Manual

EK–RRD42–OM

TZK10 Cartridge Tape Drive Owner’s
Guide

EK–TZK10–OG

TLZ06 Cassette Tape Drive Owner’s
Guide

EK–TLZ06–OM

TZ30 Cartridge Tape Drive Owner’s
Guide

EK–TZ30C–OG

(continued on next page)

D–3

Associated Documents

Table D–1 (Cont.) DEC 3000 Model 300 Series AXP System
Printed Documents
Titles

Order Numbers

SCSI Documents

Small Computer System Interface: An
Overview

EK–SCSIS–OV

Small Computer System Interface: A
Developer’s Guide

EK–SCSIS–SP

OPEN DECconnect Documentation

OPEN DECconnect Building Wiring
Components and Applications Catalog

DEC OSF/1 AXP
Documentation

EC–I1834–29

Table D–2 lists the user DEC OSF/1 AXP documentation kit and
its contents:
Table D–2 End User Documentation, QA–MT4AB–GZ

D–4

Titles

Order Numbers

Startup Documentation Subkit

QA–MT4AC–GZ

Release Notes

AA–PS2BA–TE

Guide to Installing DEC OSF/1

AA–PS2DA–TE

Guide to Software License Management

AA–PS2EA–TE

Read This First Letter

AV–PS3JA–TE

Quick Reference (card)

AV–PS3KA–TE

Associated Documents

OpenVMS AXP
Documents

Table D–3 lists some of the OpenVMS AXP documentation:
Table D–3 General OpenVMS AXP Operating System
Documents

Miscellaneous
Documents

Titles

Order Numbers

OpenVMS Alpha Version 1.5 Upgrade and
Installation Manual

AA-PV6XA-TE

OpenVMS System Manager’s Manual:
Essentials

AA-PV5MA-TK

OpenVMS System Manager’s Manual:
Tuning, Monitoring, and Complex Systems

AA-PV5NA-TK

OpenVMS Alpha Layered Products Compact
Disc User’s Guide

AA–PSQVC–RE

OpenVMS AXP Version 1.5 Release Notes

AA-PV72A-TE

Overview of OpenVMS Documentation

AA-PV6YA-TK

Table D–4 lists other documentation that may be useful to you:
Table D–4 Miscellaneous Documents
Titles

Linkworks User’s Guide
GNU Emacs Manual
GNU Emacs Lisp Reference Manual
Guide to Prestoserve

D–5

E
Help in Debugging Programs
Appendix Overview
Memory-Based
Data Structures

The DEC 3000 AXP console stores away memory-based data
structures that may help in debugging certain crashes. These
structures are:
•

Impure area—This area contains the saved machine state on
an entry into console.

•

Machine check logout—This area contains the last machine
check log caused by:
–

A system/processor correctable error (small frame)

–

A system/processor uncorrectable error (large frame)

For example:
A MCHECK FR PAL (Machine CHECK FRom PAL) implies
that the system encountered a machine check condition while
executing PALcode and not while executing operating system
code. Because of this, an operating system level crash dump
does not take place. Instead, a machine check logout frame
is created by the PALcode before entering console mode. This
logout frame may be examined while in console mode, using
the examine commands.

In This
Appendix

This appendix describes each data structure.

E–1

Examining the Impure Area

Examining the Impure Area
Commands
and Display
Elements

Enter the following command to examine the impure area:
>>> E -PM -Q -U -N 94 F4000
You must use the ctrl-s (XOFF) and ctrl-q (XON) commands to
stop and start the display. The following are the address and
description of each element in the impure area.
•

Console Flags - Address: F4000h

•

Console Halt Reason - Address: F4008h

•

Saved General-Purpose Registers - Address: F4010h F4108h
Description: Contents of the general-purpose register R0
-R31 at time of console entry.

•

Saved Floating-Point Registers - Address: F4110h - F4208h
Description: Contents of the floating-point register FR0 FR31 at time of console entry

•

Machine Check Flag - Address: F4210h

•

Saved PAL Temp Registers - Address: F4218h - F4310h
Description: Contents of PT0 - PT31 on console entry.
Operating system use.

E–2

•

Exception Address - Address: F4318h

•

PAL Base - Address: F4320h

•

Saved HIRR - Address: F4328h

•

Saved HIER - Address: F4330h

•

Saved MMCSR - Address: F4338h

•

Saved VA - Address: F4340h

•

Saved BIU_ADDR - Address: F4348h

•

Saved BIU_STAT - Address: F4350h

•

Saved DC_ADDR - Address: F4358h

•

Saved FILL_ADDR - Address: F4360h

Examining the Impure Area

•

Saved DC_STAT - Address: F4368h

•

Saved FILL_SYNDROME - Address: F4370h

•

Saved BC_TAG - Address: F4378h

•

Saved ABOX_CTL - Address: F4380h

•

Saved BIU_CTL - Address: F4388h

•

Saved FP_CSR - Address: F4390h

•

Console Entered State Variable - Address: F4398h

•

Saved Values of the PAL Temp Registers - Address: F43A0h
- F4498h
Description: Contents of PAL temps when in console
mode.

•

Saved PAL Base Register - Address: F44A0h

Examining the Machine Check Logout Area
To Examine the
Small Frame

Enter the following command to examine the machine check
logout area: To look at the small frame:
>>> E -PM -Q -U -N A F8000
You must use the ctrl-s (XOFF) and ctrl-q (XON) commands to
stop and start the display.
The following are the address and description of each element in
the small frame in the logout area:
•

Flag Field - Address: F8000h
Description: Contains the size of the frame in the low
longword and the retry bit is represented by bit 63

•

Offset Field - Address: F8008h
Description: Byte offset to the CPU specific part of the
logout frame in low longword, offset to the system error
code is in the high longword.

E–3

Examining the Machine Check Logout Area

To Examine the
Large Frame

•

Machine Check Error Code - Address: F8010h

•

BIU_STAT Contents- Address: F8018h

•

BIU_ADDR Contents - Address: F8020h

•

DC_STAT Contents - Address: F8028h

•

FILL_SYNDROME Contents - Address: F8030h

•

FILL_ADDR Contents - Address: F8038h

•

BC_TAG Contents - Address: F8040h

•

Machine Check Error CODE - Address: F8048h

Enter the following to look at the large frame:
>>> E -PM -Q -U -N 3B F8050
You must use the ctrl-s (XOFF) and ctrl-q (XON) commands to
stop and start the display.
The following are the address and description of each element in
the large frame in the logout area:
•

Flag Data - Address: F8050h
Description: Low longword contains the size of the log in
the low longword, bit 63 is used as a retry bit

•

Offset Data - Address: F8058h
Description: Low longword is offset to CPU specific data,
high longword is offset to system specific data.

•

Machine Check Code - Address: F8060h

•

Saved PAL Temp Registers - Address: F8068h - F8158h
Description: Contents of PT0 - PT31 at the time of the
error

•

Saved Exception Address- Address: F8160h
Description: Address that was executing at the time of
the machine check

E–4

•

Saved Exception Summary Register - Address: F8168h

•

Saved Exception Mask Register - Address: F8170h

•

Saved ICSSR - Address: F8178h

Examining the Machine Check Logout Area

•

Saved PALbase - Address: F8180h

•

Saved HIER - Address: F8188h

•

Saved HIRR - Address: F8190h

•

Saved MMCSR - Address: F8198h

•

Saved DC_STAT - Address: F81A0h

•

Saved DC_ADDR - Address: F81A8h

•

Saved ABOX_CTL - Address: F81B0h

•

Saved BIU_STAT - Address: F81B8h

•

Saved BIU_ADDR - Address: F81C0h

•

Saved BIU_CTL - Address: F81C8h

•

Saved FILL_SYNDROME - Address: F81D0h

•

Saved FILL_ADDR - Address: F81D8h

•

Saved VA - Address: F81E0h

•

Saved BC_TAG - Address: F81E8h

•

Machine Check Code - Address: F81F0h

•

Memory Configuration Status - Address: F81F8h

•

Saved TCASIC SLOT MODE Register - Address: F8200h

•

Saved TCASIC CONFIG Register - Address: F8208h

•

Saved TCASIC Failing Address Register - Address: F8210h

•

Saved TCASIC Error Register - Address: F8218h

•

Saved TCASIC Interrupt Register - Address: F8220h

•

Saved Interrupt Mask Register - Address: F8228h

E–5

F
Supplementary Information for PTT
Network Users
Appendix Overview
Introduction

Certain European countries and the United Kingdom require
that installation information be provided on the system
module (54–22249), which is hosted within the DEC 3000 Model
300 Series AXP systems.

In This
Appendix

This appendix includes the following information:
•

Service Specifications

•

Host Power Rating

•

Module Isolation

•

Safety Warnings for UK Installations Only

•

Cable Approval for the UK Only

•

Supported Cables

•

Equipment Between the Approved Module and a Digital
Circuit (PTT)

F–1

Appendix Overview

Service
Specifications

Table F–1 lists the service specifications for the system module.

Table F–1 Service Specifications for the System Module

Service
Category

Interface
Type
(CCITT
recommendation)

Service Requirements
Electrical

X.21bis

V.24
/V.28

Physical

ISO 2110,
BS.6623:
part1, 1985.

Approved extension
cables: 2
BC22F-25 (25 feet) and
BC22F-10 (10 feet)
1 BT — British Telecommunications plc.

Hull — Kingston Communications (Hull) plc.
MCL — Mercury Communications Limited.
2 The total length of cable used must not exceed 27 feet.

F–2

Data Rate

Public
Telecommunications
Operators1

2400 bps
4800 bps
9600 bps
19200 bps

Hull

MCL

Yes
Yes
Yes
No

Yes
Yes
Yes
Yes

Appendix Overview

Host Power
Rating

You must ensure that the total power drawn by the approved
module, the host, and other auxiliary equipment drawing power
from the host, is within the rating of the host power supply.
Digital has designed all permutations of the host configuration
(including the DEC 3000 Model 300 Series AXP Systems) to
operate within the limits of the host power rating, as shown in
Table F–2.
Table F–2 Module Power

Nominal
Voltage

Maximum
Voltage
(Volts)

Maximum
Input
Current
(Amperage)1

Maximum
Input
Current
(Amperage)2

+5.1V

+4.896

+5.304

16.0

24.0

+12.1V

+11.616

+12.584

0.8

1.8

–12.0V

–11.4

–12.6

0.1

1 Without TURBOchannel options slots populated.
2 With two TURBOchannel options slots populated. This is a worst-case situation

as specified in the TURBOchannel hardware specification.

Module
Isolation

Digital has ensured that when the system module is installed
within the DEC 3000 Model 300 Series AXP Systems, the
clearance and creepage distances to the host are met. Clearance
is the shortest distance in air between two points. Creepage is
the shortest distance along a continuous surface between those
same two points.
Creepage distances apply when the system module is installed in
a controlled environment. You can check creepage distances by
measuring the distance between adjacent parts.
If in doubt, you should seek the advice of a telecoms safety
engineer. Failure to install the system module in accordance
with these instructions will invalidate the approval.

F–3

Appendix Overview

Except at the connector that plugs into the host, clearance and
creepage distances of Xmm and Ymm, as listed in Table F–3,
must be maintained between the approved module and other
parts of the host, including expansion cards.
Table F–3 Clearance and Creepage Distances
Clearance
Xmm

Creepage
Ymm

Voltage Used or Generated by Other
Parts of the Host or Expansion Card
Vrms or Vdc

2.0

2.4 (3.8)1

Up to 50

2.6

3.0 (4.8)

Up to 125

4.0

5.0 (8.0)

Up to 250

4.0

6.4 (10.0)

Up to 300

1 The distances shown in parentheses apply in an uncontrolled environment

where heat, humidity, and temperature may fluctuate.

Safety
Warnings for
UK Installations
Only

Ports indicated by the safety warning label do not provide
sufficient isolation to satisfy the requirements of the relevant
parts of standard BS6301. Therefore, any product connected to
this port must meet one of the following conditions:
•

Be covered by the Office of Telecommunications (OFTEL)’s
General Approval NS/G/1234/J/100003
(All products supplied by Digital comply with this General
Approval.)

•

Have been approved to the relevant parts of standard
BS6301

•

Have previously been evaluated against British Telecom
(Post Office) Technical Guide 2 or 26 and given permission to
attach

Any other use of this product invalidates approval.

F–4

Appendix Overview

If a port has the following label, direct or indirect interconnection
of that port, whether the port is marked or not, may produce
hazardous conditions on the network:
SAFETY WARNING --- See Instructions for Use Before Making Any
Connection to This Module

The warning label applies to all ports labeled
Figure F–1.

! through +? in

Figure F–1 Ports to Which Warning Label Applies

11
12

MLO-009782

The numbers correspond to the following ports:

! Monitor port
" Keyboard/mouse port
# Audio input/output port
$ ISDN port
% 10BASE-T port
& External SCSI port
' TURBOchannel 1
( TURBOchannel 0
) CPU module
+> Power supply connector

F–5

Appendix Overview

+? Fixed disk/removable disk/SCSI interface
+@ Memory
Note
ISDN communications are not yet available for your
workstation. ISDN ports for connection to PTT public
service networks will be provided by a product update to
be released in the near future.

Cable Approval
for the UK Only

F–6

The system module is approved for direct connection to
a particular digital circuit. This approval includes an
interconnecting cable with mating connectors that conform
to the British standard BS6623, parts 1 and 4. If the module
is connected to the service with anything other than its own
approved cables, those cables must benefit from relevant
general approval NS/G/1235/100009 and/or conform to any other
applicable requirements.

Appendix Overview

The following table describes pin usage for the system module
connector.

Supported
Cables

Description

Ground

Not used

Transmit data

Receive data

Not used

Request to send

Receive clock

Clear to send

Not used

Data set ready

Not used

Ground

DTR

Carrier detect

Not used

Ring indicator

Not used

Data signal rate selector

Not used

Speed indicator

Not used

Table F–4 describes the cables for the system module.
Table F–4 Cables Supported by the Approved Module
Interface

Cable Type

Order Number

Molding Pins

V.24

Extension

BC22F-10 (10 feet)

straight

25-25

V.24

Extension

BC22F-25 (25 feet)

straight

25-25

F–7

Appendix Overview

Equipment
Between the
Approved
Module and a
Digital Circuit
(PTT)

If any other equipment, including cables or wiring, is to be
connected between the approved module and the point of
connection to any particular digital circuit, that equipment must
conform as follows:
•

The overall transmission characteristics of all other
equipment must not have any material effect on the
electrical conditions between the equipment and the digital
circuit.

•

All other equipment must comprise only the following:
Approved equipment, which may be subject to limitations
on its use, for the purpose of connection between it and a
particular digital circuit.
Cable or wiring that complies with a code of practice for
the installation of equipment covered by this standard or
other requirements that may be applicable.

F–8

Glossary
10BASE2 Ethernet network
See ThinWire Ethernet network.
10BASE-T Ethernet network
The IEEE standard 802.3-compliant Ethernet products used
for local distribution of data. These networking products
characteristically use a cable made by twisting together two
insulated conductors with no common covering. (Commonly
known as twisted-pair cable.) Compare with thickwire Ethernet
network.
accelerator
A hardware graphics processor that produces faster images than
a CPU and frees the CPU to do other work.
alternate console feature
A feature that allows you to receive system messages on an
alternate console terminal and direct system activities from this
terminal, if necessary, to diagnose problems with the monitor.
ANSI
Abbreviation for American National Standards Institute, an
organization that develops and publishes standards for the
computer industry.
antistatic wrist strap
A grounded strap you connect to your wrist and the system unit
while handling internal devices that are sensitive to static. This
strap prevents electrostatic discharge that could result in loss of
data, or damage to your equipment.

Glossary–1

applications
Programs, such as a financial spreadsheet program, that perform
end-user tasks.
architecture
The internal configuration of a computer including its registers,
instruction set, and input/output structure.
ASIC (Application-Specific Integrated Circuit)
Customized chips chosen from a library of circuits. The test

asic command tests the ASIC subsystem.
asynchronous transmission
A type of communications in which data is transmitted at
different time intervals. Compare with synchronous.
AUI (Attachment Unit Interface)
An IEEE standard 802.3-compliant Ethernet network made of
standard Ethernet cable, as opposed to ThinWire Ethernet cable.
Also called standard Ethernet. Compare with ThinWire Ethernet
network. See also standard Ethernet network.
autoboot
The process by which the system boots automatically.
backup copy
A copy of files or software made for safekeeping. Making a
backup copy of the data stored on your disk allows you to recover
that data after an accidental loss. You can make backup copies
on tape cartridges, or over a network using the Remote System
Manager.
baud rate
The speed at which signals are serially transmitted over a
communications line. Baud rates can be measured in bits per
second or characters per second. One baud equals one bit per
second; eight bauds equals one character per second.
bezel
The removable molded panel on the front of the system unit.

Glossary–2

bit
A binary digit; the smallest unit of information in a binary
system of notation, designated as a 0 or a 1.
boot
Short for bootstrap, meaning to bring a device or system to a
defined state where it can operate on its own.
boot (or bootstrap) device
The memory storage device that holds the software that carries
out a system bootstrap procedure.
boot console device
The device name from which the console boots the operating
system. This name is listed in a show device display under the
BOOTDEV column. Example: ESA0 indicates the network.
boot flag
An indicator bit, set by the system manager, that contains
information that is read and used by the bootstrap software
during a system bootstrap procedure. Default boot flags should
already be set when you receive your system.
buffer
An internal memory area used for temporary storage of data
records during input or output operations.
bus
A group of signals consisting of transmission lines or
wires to create a common channel or pathway. The bus
interconnects either internal computer system components
to provide communications paths for addresses, data, and
control information or external terminals and systems in a
communications network.
byte
A group of eight contiguous binary digits (bits). Bits are
numbered from right to left, 0 through 7, with bit 0 being the
low-order bit. See also kilobyte and megabyte.

Glossary–3

cable
A sheathed group of electrical conductors.
cable junction block
A small block attached to the monitor cable from which the BNC
connectors emerge.
cache
See cache memory.
cache memory
A small, high-speed area of memory placed between slower main
memory and the processor. Cache memory increases memory
transfer rates and processor speed. It contains copies of data
recently used by the processor and fetches several bytes of data
from memory in anticipation that the processor will access the
next sequential series of bytes.
CD
See compact disc.
CD-ROM
See compact disc read-only memory.
central processing unit (CPU)
The unit of the computer that is responsible for interpreting and
executing instructions.
CISC
Complex instruction set computer. A computer that uses
an instruction set consisting of a large number of complex
instructions that are managed by microcode. Contrast with
RISC.
client
A piece of hardware or software that obtains a specific set of
services from a server.

Glossary–4

client-server computing
An approach to computing that enables personal computer and
workstation users—the ‘‘clients’’—to work cooperatively with
software programs stored on a mainframe or minicomputer—the
‘‘server.’’
clock
A signal used to synchronize the circuits in a computer system.
cluster
A group of networked computers that communicate over a
common interface to share disk storage, application programs,
and other computer resources.
command
A request made to the operating system to perform a specific
function, for example, a request to run a program or show the
configuration of a system.
communications
The transmission of digital data from one point (the source) to
another (the receiver).
compact disc
A removable flat circular plate, used in the compact disc drive
on which read-only optical data is stored. A laser optical reader
retrieves this information.
compact disc read-only memory
An area of memory that can be read, but not written to.
component
A basic part, or element, of your system that can be either
internal or external. Compare with device.
configuration
See system configuration.
connector
Hardware that connects directly to a port on the system.

Glossary–5

console
A device through which an operator communicates with the
computer.
console commands
Commands input when the system is in console mode.
console mode
The state in which the computer is controlled directly by user
commands from the console terminal rather than indirectly
through the operating system. Console mode is in effect when
the system is turned on and the operating system software has
not been started, or the operating system software has been
interrupted by pressing the halt button on the system unit.
Console mode is indicated by the console prompt ( >>> ) on the
monitor screen. Compare with program mode.
console password
The password used to access privileged console commands.
console program
The code that the CPU executes during console mode.
console prompt
The prompt ( >>> ) that appears on the screen when the system
is in console mode.
console subsystem
The subsystem that provides the user interface to the system
when operating system software is not running. The console
subsystem consists of the following components:
console program
console terminal
console terminal port
remote access device
remote access port
Ethernet ports

Glossary–6

console terminal
The video or hardcopy terminal used to start the system and
direct activities between the computer operator and the console
subsystem.
console terminal port
The connector to which the console terminal cable is attached.
controller
A system component, usually a printed circuit board, that
regulates the operation of one or more devices.
CPU
See central processing unit.
cursor
A blinking symbol on the screen that indicates where the next
character you type will appear.
CXT
Integral 2D accelerated graphics.
cycle
One clock interval.
data
A formal representation of information suitable for
communication, interpretation, and processing by humans
or computers.
data bus
A pathway used to carry data signals between two or more
components of the system.
data transmission
The movement of data in the form of electrical signals along a
communications line.

Glossary–7

database
A collection of interrelated data on one or more mass storage
devices. The collection is organized to facilitate efficient and
accurate inquiry and update.
D-cache
Data cache. A high-speed memory reserved for the storage of
data. Contrast with I-cache.
DEChip 21064
The system’s main processor running various cycle times.
DECnet network
Digital networking software that runs on nodes in both local and
wide area networks.
DEC OSF/1 AXP operating system
A general-purpose operating system based on the Open Software
Foundation OSF/1 1.0 technology. DEC OSF/1 AXP runs on the
range of AXP systems, from workstations to servers.
DECwindows Motif
An interface to the operating system that allows a workstation
screen to be divided into windows where several application
programs can appear simultaneously, and commands can be
executed using menus and a mouse. This interface is fully
compliant with the OSF/Motif Graphical User Interface standard
from the Open Software Foundation. See also window.
default
A computer value or setting that is automatically in effect unless
or until another value is specified. There are some default values
that you cannot override.
default recovery action
The action that the system takes after a power or system failure.
desktop enclosure
A type of system cabinet that is small enough to sit on top of a
desk. Compare with floorstand and rackmount enclosure.

Glossary–8

depth of image
The number of bits per pixel in a frame buffer.
device
The general name for a hardware unit connected to the system
that is capable of receiving, storing, or transmitting data. An
example of a device is a fixed disk drive; you can install a fixed
disk drive into the system unit or into an expansion box that you
then connect to the system unit.
device name
The name by which a device or controller is identified in the
system. The name that a particular operating system uses for a
storage device to access that particular device. Also called the
device mnemonic.
diagnostics
Programs, located in read-only memory, that detect and identify
abnormal system hardware operation.
digital data
Information recorded and transmitted in binary coded form.
direct memory access
A processor that transfers data directly from one memory to
another without going through the main processor.
disc
See compact disc.
disk
A flat circular plate with a magnetic coating on which data is
magnetically stored in concentric circles (tracks). A fixed disk
resides permanently inside a disk drive, whereas a diskette is
removable.
disk drive
A device that holds a disk. The drive contains mechanical
components that spin the disk and move the read and write
heads that store and read the information on the surface of the
disks.

Glossary–9

diskette
A disk contained in a square jacket. Diskettes can be inserted
and removed from diskette drives.
diskette drive
A disk drive that reads from or writes to a removable diskette,
such as an RX26 diskette.
diskless system
A system that has no storage capacity of its own.
DMA
See direct memory access.
DRAM
See dynamic random-access memory.
drive bracket
A bracket that holds a removable-media drive, such as the RX26,
or a fixed disk drive, such as the RZ25 or RZ26 drives.
dynamic random-access memory
Read/write memory that must be refreshed (read from or written
to) periodically to maintain the storage of information.
environment variable
A global data structure that can be accessed only from console
mode. The setting of these data structures determines how
a system powers up, boots operating system software, and
operates.
error line
A line of information that appears if a self-test or a power-up test
fails. The following information appears on the error line: Field
replaceable unit (FRU) number; component number; component
mnemonic; error message number.
Example: 001 9 NI 172
error message number
A number that appears on the error line representing a
particular system or component problem.
Glossary–10

Ethernet
A local area network (LAN) or wide area network (WAN) that
connects (by coaxial cable) multiple computers that are running
a variety of network operating systems. Ethernet transmits
10 megabits per second and does not require switching logic or
control by a central computer.
Ethernet controller
An interface unit that connects a system to the Ethernet.
Ethernet hardware address
The unique Ethernet physical address associated with a
particular Ethernet communications controller.
Ethernet ports
The connectors on the system unit through which the Ethernet
is connected to the system.
Ethernet subsystem
The Ethernet controller chip built into the system module.
expansion box
An option that can be attached to your system that holds one
or more TURBOchannel option modules, hard disk drives, and
removable-media drive.
Factory-Installed Software (FIS)
Operating system software that is loaded into an internal fixed
disk and installed in the system unit during manufacture. On
site, the FIS is bootstrapped through the system disk, prompting
a predefined menu of questions on the final configuration.
fatal error
An error from which a process cannot recover. Fatal errors are
either those that cause the CPU to stop, or disk-write errors that
occur at any time except when the disk drive is being powered
down or write-locked.
FDDI
See Fiber Distributed Data Interface

Glossary–11

FEPROM (flash-erasable programmable read-only memory)
A memory device from which data can be erased in large
amounts at a time. If the FEROM code does not correspond
to the CPU code, you receive an error message and you must
update the flash ROM.
Fiber Distributed Data Interface
An ANSI-standard high-speed network technology that uses
fiber optics as the transmission medium. FDDI employs a ring
topology and operates up to 100 km in total network length. It
uses 1300 nm wavelengths, which optimize fiber bandwidth.
field replaceable unit (FRU) number
A Digital number allocated to any component or module that can
be replaced by you or your Digital service representative.
file
A collection of related information treated by the system as a
unit.
filler panel
A blank panel that covers the slot for the removable-media drive
when the removable-media drive is not installed in the system.
The RX26 removable-media drive has its own front panel, which
permits the user to access the front of the drive.
firmware
Software code that is stored in a fixed way (wired in), usually in
read-only memory. The firmware executes when the system is
turned on, during operating system boot and restarts, and as a
result of operator intervention or a fatal system error.
Firmware Update Utility
The firmware code provides a number of basic functions on your
system, including the console program and diagnostic testing.
The Firmware Update Utility lets you update your system with
new software code whenever it is available from Digital.
FIS
See Factory Installed Software.

Glossary–12

fixed disk
A disk that resides permanently inside a disk drive. Compare
with diskette.
fixed disk drive
The drive that holds and reads from or writes to a fixed disk.
frame buffer
An area of memory that contains a pixel-level description of a
displayed image. The frame buffer is also used to refresh the
raster display.
gigabyte (GB)
The measure used to refer to memory or secondary storage
capacity, equal to 1,024 megabytes or 1,073,741,824 bytes.
graphics
The use of lines, figures, shapes, and shaded areas to display
information.
graphics heads
Multiple monitors connected to one system unit through the use
of a second and third graphics module.
ground
A conducting connection to an electrical circuit that is at zero
potential relative to the earth; a voltage reference point that has
a zero voltage potential. Ground should be at the same potential
as neutral. Each dedicated circuit should contain a neutral and
green ground wire.
half-height disk
Any 1 5/8-inch fixed drive that is 3½ inches (9-centimeters) wide,
such as those in the RZ family; or a 1 5/8-inch removable drive
that is 5-inches (12.7-centimeters) wide, such as a compact disc.

Glossary–13

halt
The action of stopping the CPU from processing. This action
brings the system under the control of the console program. A
halt can occur when an internal system error is detected, when
you enter the HALT command at the console terminal, or when
you press the Halt button on the back of the system unit.
hard error
A nonrecoverable error.
hardware
The physical equipment—mechanical and electrical—that makes
up a system. Compare with software.
hexadecimal
A numbering system using the base 16 that is a shorthand
method for representing binary numbers. Using this method,
each four bits is converted into a single hexadecimal digit. For
example, 1001 in binary form is equal to 9 in hexadecimal form.
hexword
A length of 256 bits, 16 words, 8 longwords, or 32 bytes.
icon
A graphical symbol appearing on the system that identifies
drives, ports, switches, and indicators.
initialization
The sequence of steps that prepare the system to start.
Initialization occurs automatically after a system has been
turned on.
I-cache
Instruction cache. A high-speed memory reserved for the storage
of instructions. Contrast with D-cache.
input/output (I/O) device
A piece of equipment that transmits data to (input) and from
(output) the system. For example, a terminal or a mouse. See
mouse.

Glossary–14

Integrated Services Digital Network (ISDN)
An international telecommunications standard that allows a
communications channel to simultaneously carry voice, video,
and data.
interactive communication
A method of communicating with the computer. In an interactive
session, you enter a command at the keyboard and the system
executes the command and then prompts you for another
command.
interface
An electronic circuit board that links an external device to a
computer. Also, a device or piece of software that allows a user
to communicate with the system or allows the components of the
system to communicate with each other.
ISDN
See Integrated Services Digital Network.
jack
A receptacle into which you insert a plug, such as an audio jack.
(Compare with port.)
kilobyte (KB)
The measure used to refer to memory or secondary storage
capacity, equal to 1,024 bytes.
LAN
See local area network.
LANCE
Local-area network controller for Ethernet.
latency
The amount of time it takes the system to respond to an event.

Glossary–15

light-emitting diode (LED)
A semiconductor device that glows when supplied with a specific
voltage. The DEC 3000 Model 300 Series AXP system module
contains eight LEDs that indicate the status of the modules in
the system.
local
In close proximity to the computer. Compare with remote.
local area network
A high-speed network communications system that connects a
variety of multiple computers within a limited geographical area,
such as one building or a group of buildings. It is a privately
owned communication network whose speed is upward of one
megabit per second. Using a LAN, multiple users can share
devices and files at higher speeds, faster response times, and
lower costs than with telephone lines.
local area system
A type of configuration in which cluster information is carried
out over the Ethernet by software that emulates certain
computer interconnect (CI) port functions.
local device
A disk drive, tape drive, or other device that is only available to
the computer to which it is connected.
log in
To identify yourself to the operating system. When you log
in, you type an account name and password. If the name and
password match an account on the system, you are allowed
access to that account.
logic
A sequence of hardware or software operations. Hardware logic
consists of chips and circuits that compute and control computer
operations. Software logic (also called program logic) is the
sequence of program instructions.

Glossary–16

login command
The command issued at the operating system prompt that allows
access to and communication with the system.
longword
Four contiguous bytes (32 bits) starting on any addressable byte
boundary. Bits are numbered from right to left, 0 through 31.
The address of the longword is the address of the byte containing
0. A naturally aligned longword has an address evenly divisible
by 4.
loopback connector
An Ethernet or communications connector used on the back of
the system unit when testing the Ethernet subsystem or the
synchronous/asynchronous communications adapter.
loopback tests
Diagnostic tests used to isolate a failure by testing segments of a
particular control or data path.
machine check
An operating system action triggered by certain system
hardware-detected errors that can be fatal to system operation.
Once triggered, machine-check handler software analyzes the
error.
Maintenance Operations Protocol
The transport protocol for network bootstraps and other network
operations.
mass storage device
An input/output device on which data is stored. Typical mass
storage devices include fixed disks, compact discs, magnetic
tapes, and diskettes.
Mb
See megabit.
MB
See megabyte.

Glossary–17

media
The physical material on which data is recorded, for example,
magnetic disks, diskettes, and compact discs.
megabit
A unit of measure equal to a million bits.
megabyte
A unit of measure equal to 1,024 kilobytes or 1,048,576 bytes.
memory
The area of the system that electrically stores instructions and
data, often temporarily.
memory module
A single in-line memory module (SIMM) that contains memory
for your system. Memory modules come in different sizes, each
with a different amount of memory.
millions of instructions per second (MIPS)
A unit of measure for recording the execution rate of a computer,
for example .5 MIPS is equal to 500,000 instructions per second.
mnemonic
The abbreviation used by the system to identify a device or
controller in the system. Also referred to as the device name.
modem
A device that converts computer signals to signals that can be
sent over a telephone line.
module
An etched circuit board that contains electrical components and
electrically conductive pathways between components on which
logic devices (such as transistors, resistors, and memory chips)
are mounted. A module stores data or memory or controls the
functions of a device.
monitor
A video device that displays data.

Glossary–18

monochrome frame buffer
A separate memory component for black and white graphics.
MOP
See Maintenance Operations Protocol.
mouse
A hand-held input device that is moved across the desktop to
move the pointer or cursor on the monitor screen and to select
menu options and draw graphics. The mouse is palm-sized and
contains up to three buttons (function keys).
multiprocessing system
A system that executes multiple tasks simultaneously.
network
Two or more computers linked by communication lines to share
information and resources.
Network Interconnect (NI)
A high-speed bus that interconnects systems and serves as the
primary means of communication between them; for example,
Ethernet.
network manager
The person who manages the network, assigns unique node
names and addresses for each system on the network, and
provides administrative assistance to network users.
node
A device that has an address on, is connected to, and is able
to communicate with other devices on the bus. In a computer
network, an individual computer system connected to the
network that can communicate with other systems on the
network.
node name
A name that identifies a unique node.

Glossary–19

nonvolatile random-access memory (NVR)
Memory, such as magnetic tape or core memory, in which values
are stored even when the system is turned off. NVR codes
represent continued power-on testing. If an error occurs during
this testing sequence, then a hexadecimal code is displayed along
with FRU and error code information
ns
See nanoseconds.
online documentation
Documents that can be read directly on your monitor screen.
Online documentation is stored on a compact disc and includes
all text and illustrations found in the printed manuals. Fast
access time and cross-referencing are two advantages of online
documentation.
Open Software Foundation (OSF)
A foundation formed to develop a new operating system based
on the UNIX standard. Part of the Open Software Foundation’s
charter is to provide an interface for developing portable
applications that run on a variety of hardware platforms.
open system
A system that implements open specifications for interfaces,
services, and supporting formats so that applications software
can:
•

Be ported across a wide range of systems with minimal
changes

•

Interoperate with other applications on local and remote
systems

•

Interact with users in a style that facilitates user portability

OpenVMS AXP operating system
Digital’s open version of the VMS operating system, which runs
on DEC 3000 machines. See also open system.

Glossary–20

operating system
An integrated collection of programs that controls the operation
of the system and allows users access to data files, input/output
devices, and application programs. The DEC 3000 Model
300 Series AXP system runs the OpenVMS and DEC OSF/1
operating systems.
operating system mode
The state in which the system console terminal is under the
control of the operating system software. Also called program
mode.
PAL
See Privileged Architecture Library (software).
PALcode
Privileged Architecture Library code, written to support DEC
3000 AXP processors. PALcode implements architecturally
defined behavior.
parameter
A variable given a specific value that is passed to a program
before execution. The system console code uses many such
parameters.
parity
A method for checking the accuracy of data by calculating the
sum of the number of ones in a piece of binary data. Even
parity requires the correct sum to be an even number, odd parity
requires the correct sum to be an odd number.
password
A unique string of characters or numbers, or both that identifies
you to the computer.
password security feature
The feature that restricts access to certain console commands.
To use all console commands, users must enter a password.

Glossary–21

peripheral device
An internal or external device that provides the central
processing unit (CPU) with additional memory storage or
communication capability. Examples are disk and diskette
drives, video terminals, printers, and expansion boxes.
pointing device
A terminal input device that allows you to make a selection from
a menu or to draw graphics. See mouse and tablet.
port
A socket on the front or back of the system unit to which a
terminal, printer, modem or other device is connected. (Compare
with jack.)
port pin-outs
The description of the function of electronic signals transmitted
through each pin in a port connector.
power-up
The sequence of events that occur when you supply power to the
system for the first time.
Privileged Architecture Library (PAL)
A software chip that has a series of logic gates (AND, OR, and
NOT) that are not tied together.
privileged console commands
The commands allowed by the password security feature. See
also password security feature.
privileged console mode
The state the system is in when the password security feature
is enabled. When the system is in this mode, certain console
commands can be issued only after a password is provided. See
also password security feature.
program
The sequence of instructions the system uses to perform a task.
See also software.

Glossary–22

program mode
The state in which the computer is controlled by the operating
system. After the operating system is invoked, the system
always operates in program mode, unless you put it into console
mode. In program mode, the user can manage the system, run
software applications, and perform network tasks. Compare with
console mode.
prompt
A symbol or message displayed by a program or an operating
system, asking you to provide input.
puck
A palm-sized device that slides on a tablet’s surface. The puck
and tablet together function as a pointing device. See also
pointing device and tablet.
quadword
Eight contiguous bytes starting on an arbitrary byte boundary.
The bits are numbered from right to left, 0 through 63.
random access memory (RAM)
Memory that can be both read from and written to and that
can randomly access any one location during normal operations.
The type of memory the system uses to store the instructions of
programs currently being run.
read-only memory (ROM)
Memory that cannot be modified. The system can use (read) the
data contained in ROM but cannot change it.
Reduced Instruction Set Computer
A computer with an instruction set that is reduced in complexity,
but not necessarily in the number of instructions. RISC
architectures typically require more instructions than Complex
Instruction Set Computer (CISC) architectures to perform given
operations, because an individual RISC instruction performs less
work than a CISC instruction.

Glossary–23

register
A temporary storage location in hardware logic other than main
memory.
reliability
The probability that a device or system will not fail to perform
its intended functions during a specified time when operated
under stated conditions.
remote
Physically distant from a computer, but linked to a computer by
communication lines. Compare with local.
removable-media drive
An external or internal drive such as the RRD42, TZK10, TZ30,
TLZ06, or RX26 from which the storage medium is removable.
restore
In software, to recover files or software that were backed up,
copying the material from the backup medium (such as a tape
or diskette) to the medium you normally use. In hardware, to
return the system to an operating condition.
RISC
See Reduced Instruction Set Computer.
ROM
See read-only memory.
satellite
A node that is booted remotely from the system disk on the
boot node. Also, a computer system that obtains a specific set of
services from a server system.
SCSI
See Small Computer System Interface.

Glossary–24

SCSI bus
A communications pathway between the Small Computer System
Interface (SCSI) and other internal devices. The SCSI bus
consists of an address bus, which selects the location of the data,
and a data bus, which transfers the data.
SCSI controller
The device that directs the operations of the Small Computer
System Interface (SCSI) with synchronous and asynchronous
capabilities.
SCSI ID
The switch or jumper setting that identifies the address of each
device installed on the system. Each device must have a unique
SCSI ID for proper communication between the system and the
device.
SCSI jumpers
Removable electrical connectors on some of the drives, such as
the RRD42, that are set to determine the SCSI ID on a drive.
Each installed drive must have a unique setting for proper
communication between the system and all drives.
SCSI switches
Electrical switches on the side or back of some drives, such
as the RX26, that determine the SCSI setting of the drive.
Each installed drive must have a unique setting for proper
communication between the system and all drives.
secure system jumper
An electrical jumper in the system unit that you can move so
that the system is accessible to only those with the correct
password.
self-test
A test that is invoked automatically when the system starts up.
Serial Communication Controller (SCC)
The DEC 3000 Model 300 Series AXP I/O subsystem includes
two SCC chips that control the mouse, keyboard, and serial
communications.

Glossary–25

serial port
A port dedicated to hookups with serial line devices such as
terminals or printers. Serial devices transmit data one word
after another (serially) along a single pair of lines from a sending
device to a receiving device.
server
Hardware or software that provides a specific set of services to a
satellite or client. See also client-server computing.
Small Computer System Interface (SCSI)
An ANSI-standard interface designed for connecting disks and
other peripheral devices to computer systems. SCSI is used by
many computer and peripheral vendors throughout the industry.
smart frame buffer
A separate memory component for graphics images.
software
Instructions executed by the system to perform a chosen or
required function. Compare with hardware.
standalone network
A network that starts and operates alone, without being
connected to another network.
standalone workstation
A workstation that starts and operates alone, without being
connected to another computer.
standard Ethernet network
An Ethernet network connected with standard Ethernet cable.
(Also known as thickwire Ethernet). Compare with ThinWire
Ethernet network.
storage array
A group of mass storage devices, frequently configured as one
logical disk.

Glossary–26

storage device
A device, such as a diskette or tape, capable of recording
information.
storage expansion box
See expansion box.
strain relief strap
See universal strain relief strap.
stylus
A penlike device that draws on the surface of a tablet and
functions as a pointing device.
synchronous communication
A type of communication in which data is transmitted at equal
time intervals. This type of communication allows you to connect
your system to others in one of two ways:
•

Through a modem to a Wide Area Network (WAN)

•

Directly to another system through a null modem

system
A combination of hardware, software, and peripheral devices
that together perform specific processing operations.
system module
A circuit board that provides interface connectors to the memory
modules.
system configuration
The combined layout of hardware and software that makes up a
usable computer system.
system disk
The device on which operating system software resides.
system unit
The part of the system that contains the drives, memory, power
supply, and the computer itself.

Glossary–27

tablet
An absolute-positioning input device composed of a flat-surfaced
digitizing tablet that functions as a drawing surface. Two
pointing devices, a puck and a stylus, are used with the tablet to
move the cursor on the monitor screen, draw graphics, and make
selections from the menu.
tape cartridge
Housing for magnetic tape. The cartridge contains a reel of tape
and a take-up reel. A cartridge is similar to a cassette, but of
slightly different design.
tape drive
A device containing mechanical components that holds, turns,
reads, and writes on magnetic tape.
terminal
A device for entering information into a computer system and
displaying it on a screen. A typewriter-like keyboard, mouse,
tablet or other pointing device is used to enter information.
terminator
A connector used on one or both ends of an Ethernet segment
that provides the 50-ohm termination resistance needed for the
cable. A terminator is also required on unused ports and on the
end of a SCSI bus to complete the bus.
ThinWire Ethernet network
A Digital trademark used to describe its 10BASE2 Ethernet
products. See also 10BASE2.
time-of-year clock (TOY)
The t[est] toy command verifies that the Time-Of-Year clock
has been set, and that it is ticking.
turn off
The sequence of steps that stops the flow of electricity to a
system or its components.
twisted-pair Ethernet network
See 10BASE-T Ethernet network.

Glossary–28

TURBOchannel module
High-performance interconnection hardware that allows you to
use a variety of Digital and third-party graphics, multimedia,
and communications options. The TURBOchannel module is
a synchronous asymmetrical I/O channel that connects option
modules to the system module. With this connection, the system
module and an option module have read or write access to
each other, but option modules have no access to other option
modules.
TURBOchannel extender
See expansion box.
two-dimensional graphics
Images that are displayed on the screen in 2D. These
graphics require the use of the HX 8-plane smart frame buffer
TURBOchannel graphics option or the TX 24-plane color 2D
option, which supports motion video.
universal strain relief strap
A plastic strap used when connecting the monitor video cable
to the back of the monitor. The strap prevents the weight of
the cable junction block from pulling the cables out of the BNC
connectors.
user interface
The style of interaction between the computer and the user of
that computer.
video refresh rate
The speed at which the image on the screen is restored.
volatile memory
Memory from which values are lost when the system is turned
off.
WAN
See wide-area network.

Glossary–29

wide-area network
A high-speed public or private data communications system that
connects multiple users in different geographical areas, such as
different cities or states. In a WAN, transmissions are carried
primarily over telephone lines.
window
An area on your monitor screen in which you can start, run, and
view a separate process. Windowing capability is supported by
both OpenVMS and DEC OSF/1 workstation software.
word
Two contiguous bytes (16 bits) starting on an addressable byte
boundary. Bits are numbered from right to left, 0 through 15. A
word is identified by the address of the byte containing bit 0.
work group
Several workstations, connected together on a network, that
perform similar tasks and share information or databases.
workstation
A single-user system that offers high-performance,
high-resolution graphics, and can function in a network
environment.
write-enabled
The condition that enables a tape or diskette to be written to.
Compare with write-protected.
wrist strap
See antistatic wrist strap.
write-protected
The condition that prevents a tape or diskette from being
accidentally overwritten.
Z buffer
A buffer that attaches a depth value to every pixel to determine
which parts of an image must be discarded from processing or be
hidden from view.

Glossary–30

Index
A

Acoustical specifications for system, A–5
Adding options
external, xi
internal, xi
two methods, 2–2
Alternate console
access via the network, 6–6
change internal jumper, 6–5
connecting a printer or terminal, 6–3
connecting to system, 6–3
disconnect the keyboard, 6–4
jumper, 6–5
port specifications, 6–4
restarting the system, 6–6
when to use, 6–2
Antistatic precautions, 2–18
Antistatic wrist strap
attaching, 2–18
removing, 2–55
Associated documentation, D–1
Audio
features, 1–12
port pinouts, C–6

Cable approval, system module, F–6
Cables
for drive in position 1, 2–30
for drive in position 2, 2–31
internal power, 2–19
removing from power supply, 2–46
RX26 removable-media drive, 2–25
SCSI, 2–20
supported for system module, F–7
Communications
port pinouts, C–8
ports, C–1
Compact disc drive, 3–5
loading an operating system, 3–5
Components, system, 1–2
Configuration
checking, 2–3, 2–6, 2–10, 2–59
comparing old and new, 2–59
display, 2–3, 2–6, 2–10
error message, 2–8
memory, 2–34
reviewing, 2–3, 2–6, 2–10
show config command, 2–6, 2–59
show device command, 2–3
show mem command, 2–10
Console commands
boot, 4–8
continue, 4–15
deposit, 4–16, 5–7
examine, 4–20
halt, 4–24
help, 4–25

B
Backing up files, 2–14
10BASE-T, port pinouts, C–4
boot command, 4–8
default boot flags, 4–10
parameters, 4–8
qualifiers, 4–8

Index–1

Console commands (cont’d)
initialize, 4–29
login, 4–30, 5–6
privileged, 5–2
repeat, 4–31
set, 4–32
set auto_action, 4–38
set bootdef_dev, 4–38
set boot_osflags, 4–38
set boot_reset, 4–39
set diag_quick, 4–40
set diag_section, 4–40
set enable_audit, 4–41
set language, 4–41
set mop, 4–43
set password, 4–43
set radix, 4–44
set scsi_reset, 4–44
set secure, 4–43
set trigger, 4–44
show, 4–45
show bootdef_dev, 4–49
show boot_osflags, 4–50
show boot_reset, 4–50
show config, 2–6, 2–8, 2–59, 4–51
show device, 2–3, 2–4, 2–5, 4–51
show diag_loe, 4–52
show diag_quick, 4–52
show diag_section, 4–52
show enable_audit, 4–53
show error, 4–53
show ethernet, 4–54
show language, 4–54
show mem, 2–10, 2–11, 4–55
show mop, 4–55
show radix, 4–56
show scsi_a, 4–57
show scsi_reset, 4–57
show secure, 4–56
show trigger, 4–57
start, 4–58
test, 2–3, 4–59
using, 4–1

Index–2

Console mode
definition of, 4–3
continue command, 4–15
Conventions
device names, 4–11
used in this guide, xii
Cover
removing, 2–17
replacing, 2–55
CPU module
handling, 2–44, 2–45
installing, 2–45
removing, 2–44
Customer diagnostic environment, 4–6

D
Debugging programs, E–1
examining the impure area, E–2
examining the machine check logout area,
E–3
memory-based data structures, E–1
DEC OSF/1 AXP operating system, 1–7
end user documentation, D–4
DECsound application, 1–12
DECspin application, 1–12
deposit command, 4–16, 5–7
Device names
conventions for, 4–11
examples of, 4–12
Devices, testing configuration of, 2–59
Diagnostic display lights, 8–2
location, 8–2
recording, 8–3
Diagnostic environment
console, 4–6
customer, 4–6
power-up, 4–6
service, 4–7
Diagnostic test displays, 2–3
Digital Support Centers
telephone numbers, xiv
Dimensions of system, A–2

Disk Erase Utility, 2–32
Disk Verify Utility, 2–32, 4–64
Diskette
caution - corrupting device, 4–63
Diskette Formatter Utility, 2–27, 4–63
Documentation, D–1
DEC 3000/4000 firmware, D–3
DEC OSF/1 AXP end user, D–4
drives, D–3
for Model 300 series, xv
miscellaneous, D–5
OpenVMS AXP, D–5
printed, D–1
SCSI, D–4
Sound and Motion J300, D–2
TURBOchannel-related, D–2
Drives
documentation, D–3
getting status of installation, 2–3

E
Environmental limitations for system, A–4
Equipment
turning off, 2–15
turning on, 2–57
Erase Disk Utility, 2–32
erasing a fixed disk, 4–62
Error messages
console mode, 4–3
during startup, 2–60
FRU error codes, 8–5
recording, 2–60
show config command, 2–59
show error command, 4–53
software, 7–8
Errors, solving configuration, 2–10
Ethernet ROM
removing and installing, 2–50
examine command, 4–20
Expansion boxes, 3–4
connection to system, 3–6
turning on, 2–57

External connections to system unit, 3–6
External options
adding, 2–12
expansion box, 3–4
headset, 3–2
modem, 3–3
printer, 3–3
puck and pen, 3–2
RRD42 compact disc drive, 3–5
tablet, 3–2

F
Factory-installed software (FIS), 1–8
Files, backing up, 2–14
Filler panel
adding, 2–24
installing, 2–24
removing, 2–24, 2–25
Filler plate, removing from TURBOchannel
slot, 2–42
Firmware
parameters, 1–13
purpose of, 1–14
understanding the effect of changes, 1–13
update utility, 1–14
FIS
See factory-installed software
Fixed disk
erasing, 2–32
erasing data from, 4–62
verify utility, 2–32, 4–64
Fixed disk drive
adding RZ25, 2–12
adding RZ25L, 2–12
adding RZ26, 2–12
adding RZ26L, 2–12
installing, 2–12, 2–32
removing, 2–27, 2–28
removing mounting bracket, 2–29
RZ25 specifications, B–6
RZ25L specifications, B–12
RZ26 specifications, B–15
RZ26L specifications, B–18
RZ28 specifications, B–21

Index–3

Fixed disk drive (cont’d)
SCSI jumper settings, 2–32
Formatting a diskette, 2–27, 4–63
FRU error codes, 8–6
Future options, 1–6

G
Graphics options
HX with DEC OSF/1 AXP, 1–10
HX with OpenVMS AXP, 1–9
HX+ with DEC OSF/1 AXP, 1–10
multiple, 1–9
TX with DEC OSF/1 AXP, 1–10
with DEC OSF/1 AXP, 1–9
with OpenVMS AXP, 1–9

H
halt command, 4–24
Hardware
shutting down, 2–15
specifications, A–1
Headset, 3–2
help command, 4–25
Host power rating, system module, F–3

I
initialize command, 4–29
Input devices
puck and pen, 3–2
tablet, 3–2
Installation of options
checking, 2–57
required tools, 2–2
time required, 2–2
Internal options
CPU module, 2–44, 2–45
Ethernet ROM, removing, 2–50
fixed disk drive, 2–12, 2–27, 2–32
memory, 2–33, 2–37
power supply, 2–46, 2–49
removable-media, 2–12, 2–22, 2–26
specifications, B–1
system module, 2–52, 2–54

Index–4

Internal options (cont’d)
TURBOchannel, 2–38, 2–40, 2–42
Internal power cable, 2–19
ISDN
Australian connections, 1–11
availability, 1–11
B channels, 1–11
capabilities, 1–11
D channels, 1–12
port pinouts, C–5

J
Jumpers
alternate console, 6–5
firmware update, 1–14
RZ25 fixed disk drive, B–9, B–16
RZ25L fixed disk drive, B–13
RZ26 fixed disk drive, B–16
RZ26L fixed disk drive, B–19
RZ28 fixed disk drive, B–22
secure system, 5–5

K
Keyboard
disconnect for alternate console, 6–4
troubleshooting problems, 7–7
Keyboard/mouse
port pinouts, C–7

L
LEDs
See Diagnostic display lights
Location of options, 2–21
Log in to the system, 5–6
login command, 4–30, 5–6

M
Memory module, 2–33
8-MB SIMMs, 2–35
32-MB SIMMs, 2–35
configuration rules, 2–34
installing, 2–37

Memory module (cont’d)
removing, 2–36
status of installation, 2–10
Memory-based data structures, E–1
Metal shield, installing, 2–24
Modem
description, 3–3
turning on, 2–57
Module isolation, system module, F–3
Monitor
moving, 2–16
troubleshooting problems, 7–5
turning on, 2–57
Mounting bracket
removing from fixed disk drive, 2–29
Mouse
troubleshooting problems, 7–6
Multimedia Services
multimedia software, 1–12
Multiple graphics capabilities, 1–9

N
Network
access to alternate console, 6–6
troubleshooting problems, 7–8
Networked systems
shutting down, 2–14

O
Open Software Foundation, 1–7
OpenVMS AXP, 1–7
documentation, D–5
features, 1–7
Operating systems, 1–7
DEC OSF/1 AXP, 1–7
loading from a compact disc drive, 3–5
OpenVMS AXP, 1–7
shutting down, 2–14
Options
external, 2–12, 3–1
future, 1–6
graphics, 1–9
installation time, xi
internal, 2–2

Options (cont’d)
See also External options, 2–2, 2–12
See also Internal options, 2–2
specifications, B–1
status of options installation, 2–6
testing connection, 2–59

P
Password
changing, 5–7
disabling, 5–8
enabling, 5–4
entering, 5–3
erasing, 5–7
error message, 5–4
forgetting, 5–4
Port pinouts
audio, C–6
10BASE-T, C–4
ISDN, C–5
keyboard/mouse, C–7
SCSI, C–2
synchronous/asynchronous
communications, C–8
table of, C–1
tablet, C–7
Ports
safety warnings for UK, F–5
Power
internal cable, 2–19
requirements for system, A–2
Power supply
installing, 2–49
removing, 2–46, 2–48
removing cable, 2–46
Power-up
diagnostic environment, 4–6
Preparing your system
overview, 2–13
Printers, 3–3
turning on, 2–57
using as alternate console, 6–3

Index–5

Privileged commands, 5–2
Problems
identifying, 7–1
worksheet, 8–12
Product description, 1–2
Program mode
definition of, 4–3
Programs, debugging, E–1
Puck and pen devices, 3–2

R
Removable-media device
formatting a diskette, 4–63
installing, 2–26
installing filler panel, 2–24
removing, 2–22
removing drive, 2–22
removing filler panel, 2–25
SCSI switch settings, 2–23
Removable-media drive
RX26 diskette specifications, B–3
RX26 drive specifications, B–2
repeat command, 4–31
Restarting the system, 2–57
RRD42 compact disc drive, 3–5
loading an operating system, 3–5
RX26 removable-media drive
checking switches, B–4
diskette specifications, B–3
drive performance, B–3
drive specifications, B–2
drive storage capacity, B–4
installing, 2–12
SCSI ID, B–2
SCSI switches, B–4
RZ25 fixed disk drive
adding, 2–12
J5 SCSI ID selection, B–10
J6 SCSI ID selection, B–10
J7 SCSI ID selection, B–11
jumpers, B–9, B–16
setting SCSI ID, B–6
specifications, B–6

Index–6

RZ25L fixed disk drive
adding, 2–12
jumpers, B–13
setting SCSI ID, B–12
specifications, B–12
RZ26 fixed disk drive
adding, 2–12
SCSI ID selection, B–16
setting SCSI ID, B–15
specifications, B–15
RZ26l fixed disk drive
setting SCSI ID, B–18
specifications, B–18
RZ26L fixed disk drive
adding, 2–12
jumpers, B–19
SCSI ID selection, B–19
RZ28 fixed disk drive
jumpers, B–22
SCSI ID selection, B–22
setting SCSI ID, B–21
specifications, B–21

S
Safety warnings, system module, F–4
SCSI
cable, 2–20
device overview, 2–12
documentation, D–4
introduction to IDs, 2–13
port pinouts, C–2
switches, 2–23, B–4
troubleshooting problems, 7–7
SCSI devices
external drives, 2–12
fixed disk drives, 2–32
removable-media drive, 2–12, 2–23
RZ25 fixed disk drive, 2–12
RZ25L fixed disk drive, 2–12
RZ26 fixed disk drive, 2–12
RZ26L fixed disk drive, 2–12
SCSI Erase Utility
See test command, 4–62

SCSI ID
RX26 removable-media drive, B–2, B–4
RZ25 fixed disk drive, B–10
RZ26 fixed disk drive, B–16
RZ26L fixed disk drive, B–19
RZ28 fixed disk drive, B–22
verifying, 2–59
SCSI port, C–2
Security feature
See System security feature
Service diagnostic environment, 4–7
Service specifications, system module, F–2
set command, 1–13, 4–32
auto_action variable, 1–13, 4–33, 4–38
bootdef_dev variable, 1–13, 4–33, 4–38
boot_osflags variable, 4–33, 4–38
boot_reset variable, 4–34, 4–39
diag_loe variable, 4–34
diag_quick variable, 1–13, 4–34, 4–40
diag_section variable, 4–34, 4–40
enable_audit variable, 4–35, 4–41
language variable, 4–35, 4–41
list of environment variables, 4–33
list of values, 4–33
mop variable, 4–35, 4–43
password variable, 4–36, 4–43
radix variable, 4–36, 4–44
scsi_reset variable, 4–36, 4–44
secure variable, 4–37, 4–43
trigger variable, 4–37, 4–44
show command, 4–45
auto_action variable, 4–46
bootdef_dev variable, 4–46, 4–49
boot_osflags variable, 4–46, 4–50
boot_reset variable, 4–46, 4–50
config variable, 4–46, 4–51
device variable, 4–51
diag_loe variable, 4–46, 4–52
diag_quick variable, 4–47, 4–52
diag_section variable, 4–52
enable_audit variable, 4–47, 4–53
environment variables, 4–46
error variable, 4–47, 4–53
ethernet variable, 4–54
language variable, 4–47, 4–54

show command (cont’d)
list of parameters, 4–49
list of qualifiers, 4–49
mem variable, 4–55
mop variable, 4–48, 4–55
radix variable, 4–48, 4–56
scsi_a variable, 4–57
scsi_reset variable, 4–48, 4–57
secure variable, 4–48, 4–56
trigger variable, 4–48, 4–57
values, 4–46
show config command, 2–6, 2–59
display, 2–6
display description, 2–6
display, errors, 2–9
error description, 2–8
show device command, 2–3, 4–51
display, 2–4
display description, 2–5
example, 2–4
show mem command, 2–10
description of, 2–11
display, 2–11
example, 2–11
Shutting down
hardware, 2–15
networked systems, 2–14
operating systems, 2–14
Sound and Motion J300
documentation, D–2
Specifications
internal options, B–1
RX26 removable-media, B–3
RX26 removable-media drive, B–2
RZ25 fixed disk drive, B–6
RZ25L fixed disk drive, B–12
RZ26 fixed disk drive, B–15
RZ26L fixed disk drive, B–18
RZ28 fixed disk drive, B–21
start command, 4–58
Starting up system, 2–57
Static discharge
preventing, 2–18

Index–7

Storage expansion boxes, 3–4
Switches
RX26 removable-media drive, B–4
Synchronous/asynchronous communications
port pinouts, C–8
System
components, 1–2
configuration, 2–3, 2–6, 2–10
configuration error, 2–8, 2–10
connecting alternate console, 6–3
external connections, 3–6
location of internal devices, 2–21
logging in, 5–6
making secure, 5–3
removing cover, 2–18
replacing cover, 2–55
restarting after resetting alternate console
jumper, 6–6
restoring, 2–55
specifications, A–2
starting, 2–58
testing, 2–59
troubleshooting problems, 7–3
turning off, 2–15
turning on, 2–57
System cover
installing filler panel, 2–24
installing metal shield, 2–24
removing, 2–17
removing filler panel, 2–24, 2–25
removing metal shield, 2–25
replacing, 2–55
System module
cable approval for UK, F–6
connecting to a digital circuit, F–8
Ethernet ROM, removing, 2–50
host power rating, F–3
installing, 2–54
module isolation, F–3
removing, 2–52, 2–53
safety warnings for UK, F–4
service specifications, F–2
supported cables, F–7

Index–8

System preparation
backing up files, 2–14
moving the monitor, 2–16
opening system unit, 2–16
overview, 2–13
removing the system cover, 2–17
shutting down networks, 2–14
shutting down operating systems, 2–14
turning off equipment, 2–15
System security feature, 5–3
changing a password, 5–7
disabling a password, 5–8
enabling password, 5–4
entering a password, 5–3
erasing a password, 5–7
purpose, 5–1
secure system jumper, 5–4
System specifications
acoustical, A–5
environmental, A–4
general, A–3
power, A–2
weight and dimensions, A–2
System unit
opening, 2–16
removing cover, 2–17
replacing cover, 2–55

T
Tablet, 3–2
port pinouts, C–7
troubleshooting problems, 7–6
Terminal
using as alternate console, 6–3
test command, 4–59
diagnostic displays, 2–3
Tools, required, 2–2
Troubleshooting, 2–60
diagnostic display lights, 8–2, 8–3
keyboard problems, 7–7
monitor problems, 7–5
mouse/tablet problems, 7–6
network problems, 7–8
problems worksheet, 8–12

Troubleshooting (cont’d)
SCSI device problems, 7–7
system problems, 7–3
tables, 7–2
TURBOchannel
definition of, 2–38
options, 2–39, 2–40, 2–42
related documentation, D–2
removing filler plate, 2–42
Turning off equipment, 2–15
Turning on equipment, 2–57

U
Utilities
Disk Verify, 2–32
Diskette Formatter, 2–27
Erase Disk, 2–32
Firmware Update, 1–14

W
Warranty coverage, 2–2
Weight of system, A–2
Wrist strap
attaching, 2–18
removing, 2–55

Index–9