27 Jul
2012
27 Jul
'12
9:08 a.m.
I'm curious if anyone has ever debugged an QBUS MSV11 board.
I have one which appears to have a bad memory location - a single bit
error. I assume this means there
is one bad dram chip. But I've never debugged a memory board like this
before.
Is it possible to figure out which chip is bad? (it seems obvious the
answer is yes, but how?)
I know the location - is there some reasonable way to map that back to
the chip?
I guess I could hunt and peck by grounding or pulling high the outputs
of different chips and
running the memory diag.
any thoughts?
-brad