Article View: comp.sys.mac
Article #20239MacPlus resetting problem
From: Phil Hunt
Date: Tue, 13 Oct 1987 16:51
Date: Tue, 13 Oct 1987 16:51
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1164 bytes
>> Within the past 24 hours, my MacPlus, configured with 1Mb of >>DRAM, an external 800K floppy and an external separately powered 40Mb >>SCSI hard disk, has started resetting itself. Most frequently at power-up >>but also after running for periods up to an hour. When it starts, it will >> ....dribble,,,dribble,,, ad infinitum.... I saw the same behaviour when the +5 voltage line goes too low, like below 4.82 volts or so. Pop open you mac, check the +5 voltage line, then tweak the pot until it gets above 4.85. 4.91 is ideal, I have been told. I do not remember the exact pins to check voltage on though, so maybe someone else can recollect. Phil Hunt
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!hunt From: hunt@firqb.dec.com (Phil Hunt) Newsgroups: comp.sys.mac Subject: MacPlus resetting problem Message-ID: <11838@decwrl.DEC.COM> Date: Tue, 13-Oct-87 12:51:48 EDT Article-I.D.: decwrl.11838 Posted: Tue Oct 13 12:51:48 1987 Date-Received: Thu, 15-Oct-87 00:45:32 EDT Sender: daemon@decwrl.DEC.COM Organization: Digital Equipment Corporation Lines: 13