Mac desktops: Mac G4 Quicksilver power up problem
Same Problem
by bburrow - 1/14/08 7:52 AM In reply to: Mac G4 Quicksilver power up problem by cwood48I have a dual 1 gig G4 Quicksilver with the same problem. I got it for free from a friend who couldn't get it to boot. I figured it was probably the battery and replaced that first.. Still no boot. The fans came on slowly, the red light on the motherboard was on steady and there was a slight clicking from the superdrive. I then tested the power supply, which appeared to be faulty. Where the wiring diagram showed it should be putting out 28v, it was only 15. I bought a new power supply and installed it, and I have the same problem. Doing searches, this seems to be a very common problem among quicksilvers. My father also had the same computer and his burned a hole through it's processor. I'm hoping that's not my problem as well.
Does anyone know how to verify whether it's the motherboard or cpu?
Substitution
by mrmacfixit
- 1/14/08 10:06 AM
In reply to: Same Problem by bburrow
is about the only way to check this.
I assume you have tried all the other tips that are in this long thread?
P
Mostly
by bburrow - 1/14/08 10:45 AM In reply to: Substitution by mrmacfixit
I have not tried starting it up yet with the drives unplugged, which I will, but I have removed all components and made sure all connections were clean. I just don't have anything to substitute, unfortunately.. All my other macs use incompatible components.
probably the LogicBoard
by mrmacfixit - 8/3/09 5:01 AM
In reply to: Mac G4 Quicksilver power up problem by cwood48
I have a QuickSilver with identical problems.
The powersupply did not fix it.
Apple say, Logic Board or Processor.
I bit the bullet and let it go
P
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