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Feb 3, 2015 10:57 AM in response to JCForever777by BDAqua,Not anything simple I don't think, & in Macs that had fuses in the PSU, seems it always blew something beyond that as replacing the fuses just burnt them out again, but...
How to reset the SMU/PMU on a Power Mac earlier G3, G4, G5 models...
http://support.apple.com/kb/HT1939
http://www.macusersguide.com/2009/05/resetting-pram-nvram-pmu/