16 Oct
2007
16 Oct
'07
5:57 a.m.
I found my 11/750 in a dusty corner of a warehouse...
They do seem to be pretty reliable, after a lot of
cleaning (it was filthy!) it powered up and sorta
worked. The RDM board is bad, but that's not required
to get the machine to run. It appears to be failure of
the RAM on the RDM board, actually. Which of course is
soldered to the board, and there is no diagnostic
routine to find out which chip is bad...
Most (all?) RDMs for the VAX-11/750s were made from that odd circuit
board process where wires are laminated right to the board (the name
escapes me right now, and I will remember just after sending this).
Those boards could develop faults from the wires breaking.
--
Will