Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!ucsfcgl!cca.ucsf.edu!wet!guidrax
From: guidrax@wet.UUCP (mike guidry)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: AERCO board hacking
Keywords: AERCO, 4M, rework
Message-ID: <1568@wet.UUCP>
Date: 24 Sep 90 03:55:56 GMT
References: <2139@bnlux0.bnl.gov>
Reply-To: guidrax@wet.UUCP (mike guidry)
Organization: Wetware Diversions, San Francisco
Lines: 7

I suggest that you call Aerco for the upgrade docs.  The phone # is 512-451-5874
I was going to upgrade my 520 all the way to 4 megs, but after I saw what had
to be done to go from 2.5 to 4 megs, Idecided to get the board for my 1040
instead.  It goes to 4 megs with no mod needed.  The mods to the 520 board are
extensive:  replacing 33 resistors, cutting traces and jumper and adding a 
number of jumpers.  If you're not good with a soldering iron, Aerco will do it
for $40.