Cooling Fan Help

rWatcher

macrumors newbie
Original poster
Mar 9, 2006
17
0
I've got a PowerBook G4 15" laptop. I'm pretty sure internal fans used to be kinda loud when they kicked in. Except I haven't heard them in a while, which leads me to wonder if they've stopped working. Anyone know of any kind of software that would let me manually switch them on and off, or any other way to determine if they're definitely dead? Thanks for any help.
 

Eidorian

macrumors Penryn
Mar 23, 2005
29,081
287
Indianapolis
Check them using iStat Pro.

I found the PowerBook G4 strange as well. I had my test one running at 100% for ages before the fans ever kicked it. I thought they were broken as well until the kicked in a long time after.
 

rWatcher

macrumors newbie
Original poster
Mar 9, 2006
17
0
Check them using iStat Pro.

I found the PowerBook G4 strange as well. I had my test one running at 100% for ages before the fans ever kicked it. I thought they were broken as well until the kicked in a long time after.
Looks like the fans are currently not spinning. Any idea as to when they should start, if their not dead?
 

Eidorian

macrumors Penryn
Mar 23, 2005
29,081
287
Indianapolis
Thanks :)

So, based on this I managed to get the internal temperature of my powerbook up to over 140 F. The left fan is spinning (currently 1848 rpm), but the right is not (0 rpm). I guess this means I need a new right fan? Or is it possible for one fan to kick in without the other turning on?
The same thing happened to me.

The laptop continues to work just fine with no fan noise.