Currently Being ModeratedMay 15, 2012 6:59 AM (in response to Al Pratt)
Did you follow the correct procedure for the PMU (CUDA) reset? See How to reset the SMU/PMU on a Power Mac Earlier G3, G4, G5 models...
When you remove & check the battery voltage, you are checking with no load and can get a false reading. It's quite likely your battery needs replacement. 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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