In article <fupves$q0k$1@[EMAIL PROTECTED]
>,
Dave Seaman <dseaman@[EMAIL PROTECTED]
> wrote:
> On Wed, 23 Apr 2008 22:24:31 -0700 (PDT), archtops wrote:
> > I'm running a PowerMac G5 under OS 10.3.9. The unit works normally
> > most of the time, but I will occasionally find it first thing in the
> > morning roaring full blast, with the hard drive and/or fan just
> > spinning continuously at full speed and making quite a racket.
> > Stopping it requires a reboot. If anyone has any counsel on solving
> > this problem, I'd be very much obliged. Email reply preferred, many
> > thanks in advance.
>
> > Joe Vinikow
> > Seattle
>
> One possible cause is bad memory. I once had a PowerMac G5 that crashed
> repeatedly with exactly the same symptoms that you describe. No
hardware
> or memory tests were able to pinpoint the cause, and an Apple-certified
> technician ran it for days in his shop without managing to diagnose the
> problem.
>
> I later bought some extra memory and did some swapping until I found
that
> the crashes were always associated with one particular DIMM, and they
> ended when that DIMM was removed. The technician confirmed my diagnosis
> and got the memory replaced under warranty. The bad DIMM was from
Apple,
> but the extra memory I bought was third-party and worked fine.
Same with me. Bad memory was my problem as well. And to make it
worse, it started while I was on vacation, and the person in the
office next to mine had to keep power cycling my system.
Eventually I suspected bad memory because of other crashes I was
having, so I ran 'memtest' in a loop until it got lucky and
re****ted an error.
After replacing that bad memory, I have not had a problem since
(2+ years since then).
Bob Harris
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