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From: bierman@uvapsy.UUCP
Newsgroups: net.sources.mac
Subject: HD20SCSI problems
Message-ID: <157@uvapsy.UUCP>
Date: Wed, 25-Feb-87 08:35:20 EST
Article-I.D.: uvapsy.157
Posted: Wed Feb 25 08:35:20 1987
Date-Received: Fri, 27-Feb-87 21:07:54 EST
Organization: Psychology Dept., Univ. of Amsterdam
Lines: 13
Keywords: HD20SCSI , roomtemperature

I tried to post this before but it did'nt cross the ocean.
I have the following problem: when I boot Apple's HD20scsi drive
slightly below room temperature the head is not repositioned and
subsequently the Mac will not find the drive. At or above roomtemperature
everything is normal. I can hear the positioning of the head and
the Mac will boot from the drive. After booting I had never problems.
I discovered the temperature aspect because in dispair I laid my
hands on the drive and that helped! Although I'm open-minded vis a vis
the possibility of psi phenomena this one was too reproducable so I
traced it down too the temperature. Is there anyone out there who had
a similar problem?

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