Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!sri-unix!ctnews!pyramid!prls!philabs!sbcs!bnl!caufield From: caufield@bnl.ARPA (Jim Caufield) Newsgroups: comp.sys.mac Subject: Upgrade Interference Message-ID: <194@bnl.ARPA> Date: Tue, 1-Dec-87 11:42:26 EST Article-I.D.: bnl.194 Posted: Tue Dec 1 11:42:26 1987 Date-Received: Sat, 5-Dec-87 14:33:13 EST Distribution: na Organization: Brookhaven National Lab Lines: 14 Keywords: Plus Apple upgrade I currently own a 512K Mac and want to expand it to a Plus. When I went down to my friendly neighborhood Apple dealer, he said that my power supply would have to go as well since the old 128K supply would "caused interference" with the Plus logic board. I got the impression that he was trying to bring the price of the upgrade so close to that of a new Plus that I would go that route. Has anyone heard of 1984 power supplies not being compatible with the Plus upgrade kits? Thanks in advance!