[comp.sys.mac.hardware] MacIIci with flaky 80Mb Quantum -- what's best?

sorensen@athena.mit.edu (Alma G. Sorensen) (12/01/90)

I have a MacIIci, with the 80 Mb drive from Apple. (It says quantum
on the inside.) I bought it in March 90.  Every so often, when I turn
the machine on, the disk access light flashes  a few times, and then
stays on -- but the machine doesn't boot, and eventually the 
disk icon with the X in the middle comes up.  Clearly, it can't
find the hard drive.

Hitting the reset button to reboot the machine gets things working
again; the Mac never misses the second time around. It seems like
some kind of a drive-recognition problem secondary to the Quantum
starting up late or something.

I've reformatted the disk with 6.0.5 (it was doing this with 6.0.4 as
well), and since the Mac never gets a chance to load any of the software,
I have a hard time thinking its due to some init or another.

Is this the problem discussed at length about a year ago about the IIci
and the Quantum drives? If so, how do I get my dealer to recognize
it as such? I descrivbed the features somewhat to the service department
over the phone and they said "sounds like a virus."  The drive does
get recognized about 70% of the time, so I'm afraid if I haul it in
the dealer won't believe me and tell me nothing is wrong.

Any advice?

Thanks,

Greg Sorensen
sorensen@athena.mit.edu

greg@cti1.UUCP (Greg Fabian) (12/04/90)

sorensen@athena.mit.edu (Alma G. Sorensen) writes:

>I have a MacIIci, with the 80 Mb drive from Apple. (It says quantum
>on the inside.) I bought it in March 90.  Every so often, when I turn
>the machine on, the disk access light flashes  a few times, and then
>stays on -- but the machine doesn't boot, and eventually the 
>disk icon with the X in the middle comes up.  Clearly, it can't
>find the hard drive.

I haven't experienced this problem on a Mac, but I have had a similar
experience on an IBM PC clone.  Turns out the hard disk was not spinning
up to speed so the computer would not boot.  It was possible to boot the
machine off of a floppy, but you could never get to the hard drive.   The
drive LED blinked three times.

SPINRITE for the PC tells you how fast the drive is spinning.  If there
is a similar utility for the Mac (I'm sure there is) it could tell you
if you have enough RPM (usually 3,600 for a hard disk).  If your disk
is not spinning up, you will more than likely have to replace it.

Good luck

-- 
Greg Fabian

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yourusername@pacvax.UUCP (your name) (12/08/90)

It sure sounds like the dread "Quantum disease"; the symptoms you describe 
are exactly as those for my much older Quantum 80 external.

If you're having trouble with the dealer, I'd explain to them exactly what 
you've said here.

Good luck.