iMac G5 power failures

music4mybumhole · 10 Dec 2010 at 15:11

Hi guys/gals, hopefully you can help diagnose a fault with the above mentioned imac.
Turns on and operates 100%, but then maybe after a few hours it just cuts out dead. It can usually be turned back on, and it will stay on but for a shorter period of time, but each time this is done its shorter and shorter until it doesnt respond to the power button.
To me this all stinks of overheating, but I dont know what would be overheating, cpu, psu or something else.
I'm looking to sell it, so if I can get an idea of what needs done it would be easier.

Any help greatly appreciated.

Thanks
Jonny

K1LLSW1TCH · 10 Dec 2010 at 15:35

Can you use something like iStat or Fan Control to find out if a particular component is getting hot? Which OS are you running?

music4mybumhole · 10 Dec 2010 at 16:00

It's running 10.4. Just went to install iStat and it cut out just as I was about to download it. Seems to be getting worse. I'll have another go later on.

Thanks for your reply

DefiantAsh · 10 Dec 2010 at 22:09

Sounds like what my Acer was doing, sorry its not made by Apple but anyway.

It turned out mine was overheating, only way i could get it to turn back on was to unplug the PSU kettle lead and then plug it back in.

Try giving it a good old clean out on the inside with a small make-up brush, (shh they work great when dusting inside

), then try again, but it does sound like something is overheating.

Good Luck!