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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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PowerMac G4 (Quicksilver) Power Supply
Hi,
I was curious if anyone has information on repairing a power supply for a PowerMac G4 733 (Quicksilver). I believe the supply has an issue as it won't start up the machine, but it spins the fans for a few seconds before shutting down. Any suggestions or information would be appreciated as the replacement is quite costly! Thanks, Chris |
#2
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PowerMac G4 (Quicksilver) Power Supply
Chris wrote:
Hi, I was curious if anyone has information on repairing a power supply for a PowerMac G4 733 (Quicksilver). I believe the supply has an issue as it won't start up the machine, but it spins the fans for a few seconds before shutting down. Any suggestions or information would be appreciated as the replacement is quite costly! Thanks, Chris I had a Blue G3 machine which had a blown supply the form factor was identical to an ATX. It had a blown main power FET which had a rating IIRC of 700 Volts 10 Amps. I replaced with one that was 600 Volts 5 Amps and it ran. The only other thing to bear in mind is that the wiring is the same as an ATX however one of the supply voltages wasn't necessary , maybe -5V or -12V. This site had quite a bit of info http://www.xlr8yourmac.com/ Andrew |
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