View Full Version : Problems with G4 15" Powerbook fan

Dec 28, 2006, 02:46 PM
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?

mad jew
Dec 28, 2006, 05:17 PM
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 (http://docs.info.apple.com/article.html?artnum=14449). :)