MacBook Pro - Fan is racing, why??

fleurya · fleurya #1 (**permalink**)

01-07-2007, 06:00 PM

Sometimes my fan will race to about 4,000 rpm. I got fan control and set the parameters to temp 50/80 and fan speed to 2,000 rpm. But my fan will still fly up to 4,000 rpm when the temp is only around 60. Is this normal or do I need some kind of control update?

Evermore · Evermore #2 (**permalink**)

01-07-2007, 06:13 PM

mine does this but its only when i boot windows. When i am on Mac OSX the fans never race really fast. but in windows like when i play counter strike they are spinning crazy fast and loud. and also when does it do this? like randomly or when you are running certain programs. cuase if you use very big programs i have heard this to happen.

cazabam · cazabam #3 (**permalink**)

01-07-2007, 07:37 PM

I'm not sure about the MBP, but the MacBook's fan will spin up fast if the machine is busy or if the machine is hot. If something is eating a lot of CPU time then the fans will spin up to prevent the machine overheating in the first place. Check Activity monitor and make sure nothing is taking up a lot of CPU time.

kgeier82 · kgeier82 #4 (**permalink**)

01-07-2007, 08:31 PM

my mbp fans are rarely, if ever on HIGH. even when 100% doing encoding, enver really goes about 80c, and maybe 4000rpm

fleurya · fleurya #5 (**permalink**)

01-08-2007, 12:23 AM

I'm not doing anything special; just web browsing; using OSX. As I said, the temp is only like 60, so that's not the cause. It's very annoying.

Evermore #2 (permalink)
Member Since: Dec 31, 2006 Posts: 223 Mac Specs: MPB c2d 2.16ghz, 2gb RAM, 120gb Harddive	01-07-2007, 06:13 PM mine does this but its only when i boot windows. When i am on Mac OSX the fans never race really fast. but in windows like when i play counter strike they are spinning crazy fast and loud. and also when does it do this? like randomly or when you are running certain programs. cuase if you use very big programs i have heard this to happen. Evasive-Media Group [ MBP ] 15.4" - 2.16ghz C2D - 2gb RAM - 120gb HD [ MBP ] Evermore
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kgeier82 #4 (permalink)
Member Since: Dec 01, 2006 Posts: 1,495 Mac Specs: MBP 2.4/2GB/200HD/256 8600gt	01-07-2007, 08:31 PM my mbp fans are rarely, if ever on HIGH. even when 100% doing encoding, enver really goes about 80c, and maybe 4000rpm 2.4ghz Unibody \| Hitachi 320GB 7200 \| 256MB 9600gt
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MacBook Pro - Fan is racing, why??

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fleurya #1 (permalink)
Member Since: Nov 18, 2006 Location: Anytown, USA Posts: 4,878 Mac Specs: 27" iMac 2.7GHz Core i5, iPhone 4S, 3rd gen iPad	01-07-2007, 06:00 PM Sometimes my fan will race to about 4,000 rpm. I got fan control and set the parameters to temp 50/80 and fan speed to 2,000 rpm. But my fan will still fly up to 4,000 rpm when the temp is only around 60. Is this normal or do I need some kind of control update?
	QUOTE Thanks

fleurya #5 (permalink)
Member Since: Nov 18, 2006 Location: Anytown, USA Posts: 4,878 Mac Specs: 27" iMac 2.7GHz Core i5, iPhone 4S, 3rd gen iPad	01-08-2007, 12:23 AM I'm not doing anything special; just web browsing; using OSX. As I said, the temp is only like 60, so that's not the cause. It's very annoying.
	QUOTE Thanks

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