Digital PDFs

EK-MS7AA-IN-001

December 1992

5 pages

Original

48.9kB

Document:	MS7AA Memory Installation Card
Order Number:	EK-MS7AA-IN
Revision:	001
Pages:	5
Original Filename:

OCR Text

digital

EK–MS7AA–IN.001

MS7AA MEMORY INSTALLATION CARD
Use this card as a quick reference to install MS7AA
memory modules in DEC 7000 AXP™ and VAX 7000
systems. Refer to the appropriate System Service
Manual (EK–7002B–SV for DEC and VAX 7000
systems or EK–1002A–SV for DEC and VAX 10000
systems) for more information.
INSTALLATION GUIDELINES

1. Determine in which LSB centerplane slots to

install the additional MS7AA memory modules.
The first memory module is installed in slot 7.
Additional memory modules are installed in slots
6 through 4 and 1 through 3.

Front

Rear

3
2 Additional CPUs
or Memories
1
0

First CPU

Additional
CPUs or
Memory

First Memory

IOP Module

Centerplane

5
6

BXB-0094B-92

2. Since CPU and memory modules can be installed

in common slots, install memory modules next to
filled slots. Alternate memory modules between
the front and back of the system cabinet. Refer to
the System Service Manual for more information.

1st Edition, December 1992
Copyright (c) 1992 by Digital Equipment Corporation.
All Rights Reserved.
Printed in U.S.A.

INSTALLING AN MS7AA MEMORY MODULE

1. Perform an orderly shutdown of the system.
2. Turn the keyswitch on the front control panel

to the Disable position and wait for the control
panel yellow Fault LED to stop flashing. When
the fault LED stops flashing, power has been
removed from the LSB backplane and you may
safely proceed.

3. Open the cabinet door by holding the recessed

handhold and pulling the door out toward you.

4. Put on the antistatic wrist strap. You must wear
a wrist strap when you handle any modules.

5. Release the plate covering the LSB card cage by

loosening the two screws on the end of the plate.
The plate is connected to the card cage by a cable;
push the plate to one side, allowing the plate to
be held by the cable.

6. Remove the filler modules from the slots where
you will install additional memory modules.

7. If you need to remove a module, use your thumbs
to pull the two black restraining clips out and to
the right. The clips snap when they open.

8. Pull both levers out at the same time until they
are perpendicular to the front of the module.
This frees the module from the backplane.

9. Holding the levers, pull on the module until it

is out far enough to hold it underneath as you
remove it.

10. When the module becomes free of the card cage,

hold it with both hands, and place the module on
an ESD pad in a safe area. If the module is being
replaced, pack the module in the box from the
new module.

11. On the module to be installed, pull out the two

black restraining clips to the right and pull the
two levers out until they are perpendicular to the
front edge of the module.

12. Pick up the module to be installed. Align the

bottom tracks of the module with the tracks in
the card cage slot. Align the top ridge of the
module with the track at the top of the card cage
slot.

BXB-0091B-92

13. Holding the module level, gently guide it into

the card cage. If you encounter any resistance,
check the alignment of the tracks and reinsert
the module. When the module is fully inserted,
the front of the module will be flush with the card
cage. The module does not click when it is fully
inserted.

14. Holding the two metal tabs, push both of them

toward the edges of the module simultaneously.
Check that the ends of the metal tabs are fitting
into the guides of the cage slot. Push the levers
toward the module case.

15. Snap the black restraining clips across the levers
to secure the module.

16. Install filler modules in all unused slots.
17. Replace the plate covering the card cage by
tightening the two screws.

18. Close the cabinet doors.

VERIFYING THE SYSTEM
Power up the system by turning the keyswitch from
Disable to either the Enable or Restart position.
Power sequencing begins, and the system runs selftest.
Check the self-test display to make sure that the
system recognizes the new memory modules. The
self-test display shows a system in which one
processor and one memory module were added, at
nodes 1 and 6, respectively.
E

8
A
o
.
o
.
+
.

7
M
+
.
+
.
+
.

6
M
+
.
+
.
+
.

5
.
.
.
.
.
.
.

4
.
.
.
.
.
.
.

3
.
.
.
.
.
.
.

2
.
.
.
.
.
.
.

1
P
+
E
+
E
+
E

.
+
.
.

.
.
.
.

+
.
.
.

.
+
.
.

.
.
.
.

+
+
.
.

.
.
.
.

+
.
.
.

.
+
.
.

+
.
.
.

.
.
.

.
.
.
.

+
+
.
.

. A1 A0 .
.128 128 .

.
.

Firmware Rev=V1.0-1625 SROM Rev=V1.0-0

0
P
+
B
+
B
+
B

NODE #
TYP 1
ST1 2
BPD
ST2 2
BPD
ST3 2
BPD
C0 XMI +
C1 XMI +
C2
C3

.
.

ILV 3
256Mb

SYS SN=GAO1234567

P00>>>

BXB-0087F-92

On the TYP line the P indicates that processors
are at nodes 0 and 1. The M indicates that
memory modules are at nodes 6 and 7.
The + signs on the ST lines indicate that the
modules passed.

These two lines show the memory interleave set
and size.