On Mar 16, 2010, at 4:58 PM, Eric Volker wrote:
Any help would be appreciated before I take this thing on a long
ride up a tall building...
I don't know for certain, but I suspect you've got a bad or dying
power supply? My early 2005 G5 had the power supply quit with only one
week usage. It was 3 weeks outside the extended warranty serial #
group for the G5's with known defective power supplies, and when I got
a little noisy in a crowded Apple Store, the Genius' supervisor said,
"replace it for him, it IS a G5" while she rolled her eyes, implying
that most G5's have power supply issues.
I don't think you're going to solve this issue, and I'd wonder if your
HDs were killed by the power supply?
As further evidence, on the internet I've seen multiple posts like
this (this is translated from MacBidouille):
However the boot sequence shows this: Jun 7 11:57:17 localhost
kernel [0]: ApplePMU:: PMU FORCED SHUTDOWN, CAUSE = -122
The response of the Store and AppleCare to long to get but they
confirmed that the machine was defective and therefore offer an
exchange ...
Each person that had the power supply replaced indicted the problem
was fixed, so that seems to confirm the power supply as the cause. I'd
think your ONLY possible other cause would be bad power PRIOR to the
G5, which would be a bad UPS, bad house wiring or current, or a bad
power cord? These seem less likely to me.
Take a look at this one:
<http://www.macintouch.com/reliability/pmg5.html>
The extended warranty ended Jan.31, 2010, but you can check your
serial # here:
<http://web.archive.org/web/20080722225628/http://www.apple.com/support/powermac/powersupply/repairextension/
>
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