I returned from a six week trip during which the iMac was unplugged and stored, and I had absolutely no sound. Only have had one problem since then until now. They kept it for a month and then returned it with purportedly a new logic board. Brought it in under the one year extended warranty ( It was about 16 months old at the time and I didn't have Apple Care due to travelling screw-ups).
I had a situation about a year ago when the machine would shut itself down, usually while still booting, but never in more than 3 minutes from start up.
I do have the rev 1 :-( and our one authorized dealer/repair station in the USVI STT is not that great. The issue is covered by a warranty extension if you have a rev 1 G5 iMac with the right serial number. It could just be coincidental with the RAM install. Intermittent shutdowns is a symptom of this problem. Your best bet might bee to call Apple support and ask them though.ĭid you take the back off and look for bulging capacitors in the power supply area? (Google for pictures and other info). I don't think it's documented anywhere, but I could be wrong. Once again, anyone know at what temperature this machine should shut down? It's getting hot here (USVI), G5 heat control on 1st gen iMacs was marginal, and the added power consumption from replacing a 256 MB with a 1 GB chip might have pushed it over the edge. I am monitoring the CPU heat and seeing if I can correlate it with the shutdown. Yeah, if you mean it shuts itself down "normally" (as if you told it to shut down), you may be right. Well, I thought of this, but then thought it very unlikely that this would result in the machine shutting down completely. Seems like you might instead assume one of the RAM chips you added is defective. The machine has now started to shut itself off occassionally. I boosted my RAM two weeks ago from 768MB to 1.5 GB.