FCO 85XBA-F010 Rev C, Reliability of system recovery from brownouts.

This Field Change Order (FCO 85XBA-F010 Rev C) addresses critical reliability issues in VAX 85X0 systems, specifically improving system recovery from "brownouts" and providing multiple corrections to the PRO Console Code. It requires updating the console microcode to Nautilus Console Application V9.3, which resolves problems found in earlier V9.0 and V9.1 versions.

The FCO is applicable to all VAX 85X0 systems, changing their revision to "H1" and the PC37N revision to "N02". The installation process, estimated to take 2.5 hours, involves installing or re-installing the CONSOLE/PRODCL application. This procedure assumes the Console already has P/OS V3.1 or V3.2 and PRO Communications V3.0 installed. After successful installation, the system's console microcode revision should display as V9.3 upon booting. This revised FCO supersedes Revision B (released March 19, 1990) and was released on May 7, 1990, affecting approximately 3,724 systems.