Path: utzoo!utgpu!watserv1!watmath!att!pacbell!pacbell.com!decwrl!wuarchive!cs.utexas.edu!tut.cis.ohio-state.edu!ukma!usenet.ins.cwru.edu!ncoast!calvin!mark
From: mark@ncoast!calvin (Mark A. Fleming)
Newsgroups: comp.sys.att
Subject: Re: More RAM for my 7300
Summary: Yes you can!
Keywords: unixpc 7300 memory upgrade
Message-ID: <1990Sep8.000656.18855@ncoast!calvin>
Date: 8 Sep 90 00:06:56 GMT
References: <1503@wet.UUCP>
Reply-To: calvin!mark@ncoast.ORG (Mark A. Fleming)
Organization: The Room Upstairs
Lines: 18


     Yes, it is possible to upgrade the memory on your motherboard from
1/2 Meg to 2 Meg.  The operation involves removing the 64Kx1 chips,
soldering in sockets, and then adding 256Kx1 memory chips.  A jumper must
also be changed to indicate memory size.  This is no trivial project,
since it involves soldering/unsoldering a multilayer board.

     An excellent step-by-step description of the process was posted about
two years ago.  I've checked my copy of the Hardware Notes by John Milton
(jbm@uncle.UUCP) but did not find the description there.  Perhaps Lenny
knows the source of these instructions?  Anyway, as a start, I'd suggest
you check the recent posting to this group about the osu-cis archives.
I will check this weekend myself to see if I can find out more.  As the
proud owner of an early model 7300 myself, I can tell you that .5M is just
not enough.  You should also toss the 20M drive at your earliest
convenience and replace it with at least a 40M drive, such as the ST251-1.

maf          calvin!mark@ncoast.ORG