Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!apple!rutgers!att!lzaz!hcj
From: hcj@lzaz.ATT.COM (HC Johnson)
Newsgroups: comp.sys.atari.st
Subject: docs for 1 meg solder upgrade for 512 ???
Message-ID: <665@lzaz.ATT.COM>
Date: 30 Jun 89 12:48:08 GMT
Organization: AT&T ISL Lincroft NJ USA
Lines: 23


Chris Mauritz writes:

<I would like to know how you did the piggy back RAM upgrade.  Which pins
<get soldered and which ones get jumpered, etc.  I'm not a very knowledgeable
<person about these things, but I'm very experienced in soldering small
<components.
<
------------------------------+---------------------------
Chris Mauritz                 |Columbia U, where the women 
cmm1@cunixa.cc.columbia.edu   |are few and the sheep are
(c)All rights reserved.       |nervous.  :-)
------------------------------+---------------------------
I mentioned that I had a 512ST with the drams soldered.  I bought this
used, with the modification already made.

Does anyone still have the documentation for this upgrade.
If so, why not repost it.

Howard C. Johnson
ATT Bell Labs
att!lzaz!hcj
hcj@lzaz.att.com