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Dual G5 thermal runaway

Message #1 - Posted 2005/03/17 - Tom Malcolm

Arggh, I have a dual 1.8 G5 with 2 gigs of RAM in
and airconditioned room and several times a day
it goes to hard sleep during a Thermal Runaway
event. I've re-installed the OS 4 times, and
last time they swapped the montherboard buf
not the G5 chips and the temperture sesnsors,
so it's back in the shop but the Apple dealer
says Apple won't fix this problem if it passes
their tests. Arghh.

Message #2 - Posted 2005/03/18 - Ron Parsons

Previously, Tom Malcolm wrote:

Arggh, I have a dual 1.8 G5 with 2 gigs of RAM in and airconditioned room and several times a day
it goes to hard sleep during a Thermal Runaway
event. I've re-installed the OS 4 times, and
last time they swapped the montherboard buf
not the G5 chips and the temperture sesnsors,
so it's back in the shop but the Apple dealer
says Apple won't fix this problem if it passes
their tests. Arghh.

Used to see that occasionally with the dual 2.0 G5, but it stopped several revisions ago. Are you up to 10.3.8?

Message #3 - Posted 2005/03/18 - Tom Malcolm

Yep, up to 10.3.8. I've formatted the drives, tried 10.2.8, panther server, 10.3.7, and 10.3.8. So frustrating, back
at Apple dealer now. They say maybe it's because I
have a firewire drive attached. arghhh!

Arggh, I have a dual 1.8 G5 with 2 gigs of RAM in and airconditioned room and several times a day
it goes to hard sleep during a Thermal Runaway
event. I've re-installed the OS 4 times, and
last time they swapped the montherboard buf
not the G5 chips and the temperture sesnsors,
so it's back in the shop but the Apple dealer
says Apple won't fix this problem if it passes
their tests. Arghh.

Used to see that occasionally with the dual 2.0 G5, but it stopped several revisions ago. Are you up to 10.3.8?

Message #4 - Posted 2005/03/20 - pcwhalen

If you search on the Apple discussions site, a lot of the original Dual 2 gzh have had this problem, including mine. If you leave the computer on all the time and it goes into sleep mode, the G5 acts as you describe. The only solution I have fould is to disable sleep. Some say it's a graphics card problem.

Message #5 - Posted 2005/03/21 - Tom Malcolm

I have the dual 1.8 gig model, I set it to never sleep, nothing sleeps - and it's been in the shop twice - once to replace the motherboard. The repair shop says it's cause I use an external firewire drive. I'm sorry it's a lemon. I run the same firewire drive on any G4, they never sleep, the dual G5 gets thermal runaways, but wakes up right after you press the keyboard. Apple sells lemons sometimes...

If you search on the Apple discussions site, a lot of the original Dual 2 gzh have had this problem, including mine. If you leave the computer on all the time and it goes into sleep mode, the G5 acts as you describe. The only solution I have fould is to disable sleep. Some say it's a graphics card problem.

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