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From: tgp@sei.cmu.edu (Tod Pike)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: PS/2 30-286 memory
Message-ID: <23921@as0c.sei.cmu.edu>
Date: 11 Apr 91 15:57:26 GMT
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I had posted this request on comp.sys.ibm.pc.hardware (but wasn't aware that
a ps/2 specific group existed).  I have a PS/2 30-286 with 1 meg of memory,
and would like to upgrade to more memory.  According to the specs and the
local hardware shop, I can put up to 4 meg on the system board.  My question
is whether I can use standard 1 meg SIMMS (at the appropriate speed).

I had purchased a couple of 1 meg SIMMS and tried them, but the system does not
recognize them.  After much grief and experimentation, I called one of the
third party memory vendors listed in the back of PC magazine and asked them
what I needed.  They indicated that standard SIMMS will not work, as IBM
requires a jumper on one of the chips...the modified chips (which look just
like standard SIMMS) cost about twice as much.

So, what's the scoop?  Was the memory guy just trying to get me to buy more
expensive chips, or has IBM really gone for non-standard memory modules?

			Thanks,
				Tod Pike

Internet: tgp@sei.cmu.edu
Mail:     Carnegie Mellon University
	  Software Engineering Institute
	  Pittsburgh, PA. 15213-3980