Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxn!ihnp4!ucbvax!info-atari From: info-atari@ucbvax.UUCP Newsgroups: net.micro.atari Subject: Re: 1meg upgrade killer Message-ID: <8601061635.AA08275@gatech.GTNET> Date: Mon, 6-Jan-86 11:35:57 EST Article-I.D.: gatech.8601061635.AA08275 Posted: Mon Jan 6 11:35:57 1986 Date-Received: Fri, 10-Jan-86 07:29:06 EST References: <8601040742.AA05555@ucbvax.berkeley.edu> Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 9 You probably got your wires on the bottom of u15 in the wrong places. The instructions are a bit wrong in that the chip counts clockwise from the bottom(wirng side). You probably haven't fried anything. You should, however, install the other three 68 ohm resistors in series with the RAS and CAS lines for the original memory chips. I just did 3 units this weekend and all work well. The symptom you describe can be duplicated by moving the wires on u15. Also, if you don't put the filter capacitors back in, the exact same symptom will occur, with NO damage if not left on for too long.