When it hangs, the CPU modules flip between twe LED
states: 1 (bottom
LED on) and 6 (2nd and third LEDs on). Is there documentation
available
about the meaning of these?
EK-624EA-MG-001 VAX 6000 Models 300 and 400 Service Manual
should help. Again, if it's not on Manx, let me know
and I'll dig it out.
My memory tells me that there are some restrictions
about what goes where on the XMI bus, but I've not looked
at the manual lately so I don't remember precisely
what they are.
One suggestion would be to take the working config
(with just the one memory board) and swap the
suspect memory board for the good one. If that fails
then you have a bad memory board taking out the bus.
Antonio
--
Antonio carlini
arcarlini at
iee.org