Question about Apple Power Supply 344 Watt PowerMac G4 Quick Silver (p/n 661-2513) 344-Watt Power Supply
Switch lights and cooling fans kick but that is all, unit has been unused for some time, but was fine when last used
This is a common problem with G4 Quicksilver. Your power-supply is defect and has to be replaced. I have 4 G4s in my lab with the same symptom: a short flash of the power-button light, sometimes it turns on, but mostly the machine is dead.
Posted on May 14, 2008
PowerMac G4 M8493. Machine one day started to turn off on its own. The period of time it would stay on got shorter and shorter until the last time it went off, it wouldnt restart. Pushing the power buttun turns the button light on, and the motherboard red light flashes. Thats it, no fans, no hard drives, nothing else. When the powerbuten is not pressed, the light goes out. PMU reset, 3.6v Battery replaced, power cord changed. Same problems. If it is the power supply, how can I be sure. And where can this be fixed for such an old model?
Posted on Aug 19, 2009
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Posted on Jan 02, 2017
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