Command for iBook fan?


Original poster
Feb 18, 2006
Hong Kong
Hey all,

I was using my iBook G3 to watch a movie last night and it was playing up. This involved the screen randomly doing wierd things and the computer freezing.

At first, I thought the logic board was playing up again, which it might be doing.

Secondly however, I noticed that the laptop was VERY hot, too hot to touch on the bottom, and the ram sheild was hot enough to fry an egg on.

During this time the fan never came on...

So my question is, is there a way, perhaps in the Terminal, to manually tell the fan to come on? I don't mind the noise, and I need to keep this laptop cool!



macrumors 6502
Jul 2, 2007
Manchester, UK
You can't manually override the fan control on a G3 iBook. smcFanControl will allow you to control fan speed on intel macs (post 10.4) but there is no equivalent for PPC.
I found this on MacMod but it's far from ideal.