Dual G5 thermal runaway

several times a day it goes to hard sleep during a Thermal Runaway event.
Tom Malcolm wrote on :
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.
Ron Parsons replied on :

In article 1gtj8rb.1cq632l1v1do36N%tom933@redacted.invalid, tom933@redacted.invalid (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?

Tom Malcolm replied on :

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?

pcwhalen replied on :
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.
Tom Malcolm replied on :

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.