[net.sources.mac] HD20SCSI problems

bierman@uvapsy.UUCP (02/25/87)

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?

UUCP: mcvax!uvapsy!bierman