[comp.sys.amiga] Supra Interface Problems

rsn@ndmath.UUCP (Ross Niebergall) (12/20/89)

I have recently been experiencing some problems with my A500 that I believe
originate in my hard drive.  My system is an A500 with Supra SCSI Interface,
Adaptec 4010 controller and St225 drive.  It has been up and running for
about 9 months without problem until Sunday, when for no apparent reason
the keyboard seemed to lock up.  The mouse still worked, and I was able to
reboot the machine using ctrl-A-A, but other than that I was unable
to do anything.  Since then the exact same thing has happened about
6 more times.  If it locks up dduring disk activity, the disks remain
running until the machine is rebooted.  I also had some problems
with errors on my hard drive, and when I tried to reboot the machine
locked up while booting.  This time though the machine had been on for
about an hour, so it may have been kind of warm.  After leaving it turned
off over night, it rebooted fine, with no errors at all on the drive,
but after about 15 minutes the keyboard locked up again.

Any help would be greatly appreciated.  My only thought ws perhaps a loose
chip that gives difficulty when it warms.
Also, I am powering the interface using my A500 power supply, but when the
hard drive is not turned on, I experience no problems.

Thanks in advance for any help,
rsn@ndmath.math.nd.e