VAX 6000 Model 200/300/400 Processor Console and Diagnostic ROM Upgrade Instructions

This document provides detailed instructions for upgrading the Processor Console and Diagnostic ROMs on VAX 6000 Model 200, 300, and 400 series systems. Published by Digital Equipment Corporation in October 1990 (Revision V1.6), it is intended for customer service representatives and self-maintenance users.

The upgrade is essential for supporting new hardware, specifically the MS65A memory and various XMI bus devices (e.g., Ethernet adapters, disk controllers, bus adapters, CI adapters, and CD-ROM servers).

The comprehensive procedure details a multi-step process:

1. Preparation: System shutdown and recording crucial console and processor configuration parameters (e.g., boot specifications, serial numbers, terminal settings).
2. Hardware Replacement: Powering down the system, applying electrostatic discharge (ESD) precautions, physically removing old ROMs and installing new ones on each processor module, then re-installing the modules.
3. Post-Upgrade Configuration: Powering on, using specific console commands to program the default EEPROM image, re-entering previously recorded system and manufacturing data, and restoring original console settings.
4. Verification: Confirming the EEPROM programming, booting the system, and updating relevant documentation.

The document also introduces the VAX 6000 Series EEPROM Update Utility Program (EVUCA), a new diagnostic tool offering enhanced functionality for updating EEPROM contents and boot primitives, especially useful for systems with mixed ROM revisions or patch applications. It emphasizes the critical importance of following the exact procedure to prevent system issues.