jeffrey@ccnysci.UUCP (Jeffrey L Bromberger) (08/27/89)
I just put the full complement of 1.5 Mb into a combo card I have.
Previously, the card held no memory, and was used solely for the ports.
When I configure the card for 0.5 Meg, it passes the diagnostics. When
the jumpers are placed into either the 1 or 1.5 Meg position, I get
errors like these:
Address Connection:
Connection on address line 1 is bad
Wrote 55 to XXXXXX then wrote FFFFFFAA to 280002 then read back 54.
where XXXXXX is:
200012
200202
201002
220002
280012
280202
281002
2a0002
When I ignore these, it goes on to the random memory test, and I get
errors in lots of locations. The errors are like this:
Location 27A wrote d84 read c84
Location 27e wrote 332c read 322c
Location 28a wrote 7ea3 read 7fa3
Does anyone out there have any ideas what may be wrong? I thought it
might be the backplane, but similar errors happen regardless of the
slot the card is in. Any help would be greatly appreciated.
j
--
Jeffrey L. Bromberger
System Operator---City College of New York---Science Computing Facility
jeffrey@sci.ccny.cuny.edu jeffrey@ccnysci.BITNET
Anywhere!{cmcl2,philabs,phri}!ccnysci!jeffrey