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Power Mac G4 (Gigabit Ethernet) won't power on

I can't get the PMac G4 Gigabit that I use to run older software to power on. The last time I used it, everything appreared to be fine. Any suggestions?

PowerMac, Mac OS X (10.4.11)

Posted on Nov 22, 2012 7:28 AM

Reply
1 reply

Nov 22, 2012 8:55 AM in response to Sam Schlegel

When was the last time you used it and has it remained plugged into AC power?


First try a PMU reset See How to reset the SMU/PMU on a Power Mac Earlier G3, G4, G5 models...

http://support.apple.com/kb/HT1939


Your internal PRAM battery may be weak or discharged. Suggest you replace the battery. Check this site for battery part numbers and sources. https://sites.google.com/site/macpram/mac-pram-nvram-cuda-pmu-battery-tutorialMac PRAM, NVRAM, CUDA/PMU & Battery Tutorial


 Cheers, Tom 😉

Power Mac G4 (Gigabit Ethernet) won't power on

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