4 Apr
2018
4 Apr
'18
2:10 a.m.
On Sat, 31 Mar 2018, Peter Coghlan via cctalk wrote:
I ran the various tests provided by the different
jumper settings on my second
3000 600 and I found that the memTest (no-cache) LongWord Memory Test (position
5, J3) failed as well as the tests involving the cache. In an attempt to find
which memory was failing, I swapped around the memory risers. Bizarrely, the
(no-cache) failures went away completely when I swapped around the front two
risers. The failures returned when I swapped them back. This is very odd as
the two risers appear to be identical and seem to be populated with identical
SIMMs.
Have you tried cleaning the pins?
The riser connectors are the same style DECstation 5000/200 MS02 memory
modules use and I had cases of ECC errors appearing with those which went
away once thorougly cleaned with IPA. Lone reseating didn't help.
Maciej