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From: mweasner@trwrb.UUCP (Michael L. Weasner)
Newsgroups: comp.sys.mac
Subject: Mac Hardware Crashes
Message-ID: <1454@trwrb.UUCP>
Date: Fri, 5-Dec-86 16:39:47 EST
Article-I.D.: trwrb.1454
Posted: Fri Dec  5 16:39:47 1986
Date-Received: Sun, 7-Dec-86 21:37:37 EST
Organization: TRW EDS, Redondo Beach, CA
Lines: 22

Question for you Mac hardware gurus.  I had my 512K Mac upgraded first to the
512KE and then a month later to the full MacPlus configuration.  Shortly
thereafterward, it started rebooting on its own.  No, it wasn't a too long
programmer's switch -- in fact, the dealer never did figure out what was wrong
and just replaced the analog board, the logic board, and the 800K drive.  No
rebooting problems since but now something new has started.

About every fourth or fifth time I insert a disk into the internal 800K drive,
the system bombs.  Usually I get an ID=02 but occasionally an ID=28.  The
inserted disk IS NOT ACCESSED before the bomb.  In fact, the bomb seems to
occur right after the disk is grabbed and seated.  It almost seems like a
mechanical problem and not software.  I am running System 3.2 and the bombs
have occurred in the Finder and just about any other program.  And it doesn't
matter whether I have booted from a floppy or from the hard disk.

This really makes backing up the hard disk onto floppies a frustrating
experience.

Does anyone know what the problem is?  I am reluctant to take the Mac back to
the dealer until I have a better idea of what is wrong.  Any help appreciated.

Mike Weasner