21 Jul
2011
21 Jul
'11
11:34 p.m.
I got given a third party (Phillips) 32MB module for my VAX 4000-200
recently. I have just installed it. While it seems to work I get this from
the console:
>>sh mem
Memory 0: 00000000 to 00FFFFFF,
16MB, 0 bad pages
Memory 1: 01000000 to 01FFFFFF, 16MB, 0 bad pages
-- FDM (fast diagnostic mode) not working
Memory 2: 02000000 to 02FFFFFF, 16MB, 0 bad pages
-- FDM (fast diagnostic mode) not working
Total of 48MB, 0 bad pages, 120 reserved pages
>>
What is FDM exactly? I suppose it is a feature that is not present on this
board as it is 3rd party, but I wonder if it can have any impact beyond
affecting diagnostics?
Thanks
Rob