FCO 871BA-F005 Rev C, Corrects system recovery from brownouts.

This Field Change Order (FCO 871BA-F005 Rev C) addresses critical reliability issues for VAX 8700/8810 and 897X systems, primarily focusing on system recovery from "brownouts" (power fluctuations) and implementing multiple corrections to the PRO Console Code. This revision supersedes Rev. B, released on March 19, 1990, and specifically updates the required microcode.

The FCO mandates that affected systems will have their VAX revision changed to "E1" and PC37N revision to "N03". The core of this update involves installing Nautilus Console Application V9.3, which corrects all known problems from previous V9.0 and V9.1 versions. Upon successful installation, a quick check confirms the console microcode revision should display as V9.3 when the system is booted.

The installation process, estimated to take 2.5 hours, assumes P/OS V3.1 or V3.2 and PRO Communications V3.0 are already installed. It involves:

1. Removing any existing CONSOLE/PRODCL application from the Main Menu and the public library.
2. Copying the new CONSOLE/PRODCL application from a series of diskettes (e.g., CONSOLEDCL1, CONSOLEDCL2, NCON1-NCON5, NDIAG4) into the system's public library.
3. Installing this application from the public library to the system account.
4. Setting CONSOLE/PRODCL as the first application to run when the PRO Console is powered on.
5. A final power cycle (OFF then ON) of the PRO Console, followed by editing new bootstrap command files, is required to complete the procedure.

Administratively, the FCO requires updating the Site Management Guide and reporting the activity on the LARS form. The affected population for this FCO is 1,788 systems.