Can't tell if the sensor or fan is bad. Fan doesn't come on even when the processor is 60+C. The only good apps I've seen to either trouble shoot fans or to make sure it's on through a command is for the intel versions not for PPC. Anyone know of how to trouble shoot?
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Problems with G4 15" Powerbook fan
- Thread starter dvdiva
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To check if your fans are working at all, either try running the Apple Hardware Test that came with your machine (most likely on a separate CD), or try resetting the PMU. 