View Full Version : PowerBook temperature : fan

25th January 2006, 07:10 PM
Looking for some comparison data from other PowerBook users...

At what CPU temperature do your fans kick in?
Also, what are the fan rpm's for a given temperature?

25th January 2006, 07:38 PM
Fans are audible at around 60 on mine.

25th January 2006, 09:46 PM
Right now, the temperature on my CPU is 48 degrees and the fans are running at just over 6000rpm. The fans have been a lot more audible after I installed tiger.

26th January 2006, 08:48 AM
i cant even feel my fans running on my powerbook and its way too hot to touch, sysstat says 57 degrees on lower CPU.

26th January 2006, 09:35 AM
At about 62-63 degrees but I try to remember to turn my iBreeze on when the temp gets to 60 to avoid the PB having to turn on its fans - hope to lengthen its use by date.
ATM it's 58.5? and I've been surfing/emailing/Dreamweavering for about half an hour.

EDIT: just noticed the "?" after 58.5 above. It should be degrees C symbol from Character pallette (mmmmm??)

26th January 2006, 09:40 AM
How hot is *too* hot? I notice mine gets rather WARM on hot days, when its plugged in and running a few big proggies at once. I have a laptop cooler stand thing, but is it needed?

Right now its at 47 C

26th January 2006, 10:39 AM
fans just kicked in at 56 deg at approx 700rpm.

15" PB 1.67 G4 here

Georgina EG
26th January 2006, 10:52 AM
There was a page and a half about Apple computers in Adelaide's Advertiser newspaper yesterday, and it mentioned the notorious heat problem with Powerbooks quoting Jobs calling it "a pesky little problem" because of the power consumption. It is stated in the article that the new Intel Core Duo processor promises to offer better performance with less power consumption . . . therefore less heat?

27th January 2006, 09:14 AM
How do you get the fan information?

Temperature of my Rev D 17 inch never gets above 32 deg. Even when working hard. Normal operating temperature is 28 deg.

27th January 2006, 10:17 AM
Fans kick in at 50C and high RPMs at 60C on 12" PB.
At the moment, CPU Bottom reads 46C. Air Conditioned office environment. Bit of web, email and virtual pc usage this morning.

27th January 2006, 10:54 AM
Originally posted by leon@Jan 27 2006, 10:14 AM
How do you get the fan information?

Temperature of my Rev D 17 inch never gets above 32 deg. Even when working hard. Normal operating temperature is 28 deg.
For fan information - Go to iSlayer.net (http://www.islayer.net) and download the TempStat widget.

About your temps though, the sensors in the G4 PowerBooks don't update themselves on any widgets until you restart your computer. So after using your computer for quite a while, restart it and you'll probably notice that the computer is running at a lot hotter than that.

My PowerBook runs at about 45 degrees when used just for general stuff.

27th January 2006, 10:58 AM
TempStat Widget indicates that my PB G4 1.5GHz Left Rear Exhaust Fan kicks in at 61C, top and bottom CPU sensors both seem to read same temp. The fan runs up to 1800RPM. So far Right Rear has not been observed running, - I think this only occurs when a DVD or CD is being used in the drive.

27th January 2006, 11:05 AM
Thanks for the info

Currently 17 inch Rev D is
44 deg CPU
36 deg Trackpad
46 deg CPU bottom & Powersupply

Fans 4026 RPM (Left Rear)
0 RPM (Right Rear)

Light to medium work conditions in hot un-airconditioned office.