Path: utzoo!attcan!uunet!labrea!bloom-beacon!tut.cis.ohio-state.edu!ukma!rutgers!noao!arizona!naucse!sbw
From: sbw@naucse.UUCP (Steve Wampler)
Newsgroups: unix-pc.general
Subject: Help on Combo Board Diagnostic
Message-ID: <1354@naucse.UUCP>
Date: 19 Apr 89 01:52:32 GMT
Organization: Northern Arizona University, Flagstaff, AZ
Lines: 36

I need some help determining what the memory diagnostics are trying
to tell me about the combo board I just tried to install:

System: 3B1, 2MB on motherboard, UNIX 3.5 diagnostic disk.

I just got a 0K Combo board onto which I placed 1.5MB.  Since the
system recognizes that I have 1.5MB, I assume that I at least got
the two jumpers in the right place.  However, when running the
memory diagnostics, I get *lots* and *lots* of errors on the
expansion board Address Connection subtest.  Briefly put these
messages look like:

Pass 1
Memory Error: Connection to line X bad
Wrote 55 to address Y, wrote FFFFFAA to address Z, read 57 from address Y

Where X is (in repeating sequence) 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,
	17,18,21 (Should I at least be grateful it skipped lines 19 & 20?).
And Y is (in sequence) 200000 200002 200004 200008 200010 200020 .... 240000

(After all these error messages, it repeats, with slight variations in
addresses..)

Now, what does it all mean?  Since it's an address connection, I tried
to board in different slots: no change in messages.  Do I have a *bunch*
of fried memory chips (I *thought* I was well grounded, but...)?  Which
ones?  Is the logic on the board itself fried?  How should I proceed in
tracking down the problem?

I'd be eternally grateful for any explanations/suggestions (well grateful
for most suggestions, anyway)!

Thanks!
-- 
	Steve Wampler
	{....!arizona!naucse!sbw}