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From: doerschu@rex.cs.tulane.edu (Dave Doerschuk)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Adding memory to PS/2 Model 80
Message-ID: <7608@rex.cs.tulane.edu>
Date: 22 May 91 05:44:57 GMT
Sender: news@rex.cs.tulane.edu
Distribution: usa
Organization: Computer Science Dept., Tulane Univ., New Orleans, LA
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I'm trying to add 2 Meg of memory to a PS/2 Model 80, which will bring
it to a total of 4 Megs.  Inside the machine there is a pair of cards
on a bus that appears to be a memory-card-only bus; that is, it is not
the I/O bus.  I'm assuming that each of these cards contains a meg of
memory.  I was wondering:
1.  Who is a good supplier to buy this unusual memory from?
2.  Should I add memory to the I/O bus, or remove one of the existing
    memory cards and put in a larger one?
3.  Can the two memory cards be of unequal size, that is, one 1-Meg
    card and one 3-Meg card?

I'd especially like to hear from anyone who has done this already that
can advise me of potential problems :-)  If I've misunderstood the
situation here, I'd like to be set straight.

Thank you for your help.

Dave Doerschuk
doerschu@rex.cs.tulane.edu