Currently Being ModeratedNov 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...
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-tutorial Mac PRAM, NVRAM, CUDA/PMU & Battery Tutorial
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