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Use custom laptop fan speeds while booted in Windows Laptop Macs
I always liked using smcFanControl to control my MacBook Pro's fan speed to keep it running cooler. I always wished to do the same while booted in Windows via Boot Camp. After discovering that smcFanControl settings will stick through a restart, I tried the following and it worked:
  1. While booted in Mac OS X, use smcFanControl to keep it cool enough. I found that 3500rpm is adequate.
  2. Quit all apps and restart your MacBook pro -- do not shut it down.
  3. After hold down the Option key and choosing Windows, your fan settings will stick unless the machine sleeps.
[robg adds: I haven't tested this one in Windows, but the fan speed settings certainly seem to stick through a restart.]
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Use custom laptop fan speeds while booted in Windows | 6 comments | Create New Account
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Use custom laptop fan speeds while booted in Windows
Authored by: swisswuff on Dec 06, '06 11:46:23AM

As long as you keep that in mind (that some settings "stick"), you won't be surprised about other "dual boot issues".

If you do dual boot of Linux and Windows on the same laptop, you may very well be experiencing some issues with your network card that are really caused by Windows and that you won't get until after re-booting into Linux. If you really let your laptop have a hard chill (take batteries out, wait a little), problems will be gone.

The solution in such instances is to suspect it first, and to really reset the machine secondly. Or, if you want some functionality to "stick", to do it the other way around - as described here.

I wonder to what other components this could pertain.



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Works with XP
Authored by: danham on Dec 06, '06 12:08:20PM

I'm a little surprised to see this as a hint -- it is (sort of) documented in smcFanControl's docs.

Yes, it definitely "survives" a restart and boot into XP, which is how I've been using it for months.

Prior to obtaining this program my BlacBook would get a lot hotter during some Windows activities than under OS X -- seeming as if the "steps" that trigger higher fan speeds get a lot cruder under Windows. But that would be entirely in character [grin].

-dan



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Use custom laptop fan speeds while booted in Windows
Authored by: Anticitizen on Dec 07, '06 11:42:12PM

Works nicely. I discovered this by accident, but it definitely works very nicely during extended sessions of Half-Life 2.



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Use custom laptop fan speeds while booted in Windows
Authored by: qrulf on Dec 08, '06 12:28:54PM

I'm sorry but I find "3500rpm" quite loud and noisy - could someone elaborate a bit why I would keep my machine cooler at the expense of noise? :-)

~ Jørgen



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Use custom laptop fan speeds while booted in Windows
Authored by: luai on Dec 09, '06 11:40:26AM

The main reason I used this hint for was that - once booted in Windows - the fans are not automatically controlled by the system. Mac OS X controls the fans but not Windows.
As for the speed of 3500, I do not think it's very noisy. Of course you could change it to what suits you.



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Use custom laptop fan speeds while booted in Windows
Authored by: interfuse on Dec 14, '06 07:12:29PM

Thank you!

This works! I'm using a MBP C2D 15" 2.33GHz. I was booted into Mac OS X, opened SmcFanControl, set the fans to 6,000rpm (so i could clearly hear them), then closed all apps. I restarted, held down Option, booted into Windows, and volla - I could still clearly hear the fans at high speeds, while in Windows XP.

This is great if you plan on playing games while in Windows XP, to ensure your MacBook Pro stays nice & cool, but also maximum performance.

PS. I also noticed that Apple's minimum fan speed for the C2D MBP's is 2,000rpm, opposed to 1,000rpm for the first series MBP's.



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