Path: utzoo!attcan!uunet!dino!ux1.cso.uiuc.edu!cs325ec
From: cs325ec@ux1.cso.uiuc.edu (Gregory Lemperle-Kerr)
Newsgroups: comp.sys.atari.st
Subject: Re: (none)
Message-ID: <1990Apr13.122000.20588@ux1.cso.uiuc.edu>
Date: 13 Apr 90 12:20:00 GMT
References: <11214.4598.forumexp@mts.rpi.edu>
Organization: University of Illinois at Urbana
Lines: 22

Ken Yu writes:


> 
>      There is a file on terminator called 25MEGADD.ARC which explains
>   how to exapnd a 1040ST to 2.5 megs by replacing the existing
>   256K chips with 1 megabit chips. Unfortunately, the arc file is
>   corrupted and I can only read the first paragraph. Is it as easy
>   as it says in the introduction? (Just unsolder the 256 k and
>   add sockets for 1 meg chips?) 
> 

	*** NO, Don't do it ***...  Yes, it can be done, I did it, but
	check your mother board version.  In the end, the file was good
	for one thing only, the chip pin out diagrams.  I had to trace
	all my lines to find the right ones to cut...  I have a rev C.
	1040 board (blitter socket), much different than the one the
	author had.  It would seem to me that one would be better off
	getting SIMMS and wiring them in.  You must modify the sockets...,
	cut many traces... etc.  Good luck, if you need help, email me.

	-- Greg