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I have a MacBook Pro, 15" April 2010 edition, which overheats and then freezes while running Boot Camp. It appears that the fans aren't turning on. I run Windows 7 x64. The CPU is a Core i5. I see lots of mentions of this on Apple's forums and elsewhere, but no solutions.

I measured the temperature while running Mac OS X and while running Windows 7, and verified that it's simply much hotter under Boot Camp.

What is the reason?

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pretty much the same here (older laptop though, and it never goes hat far that it freezes). I never read a final solution on the net so maybe there is none. As far as I know, it has to do with drivers. In Windows my fans start going berserk even when there's like no cpu usage. Summers are hell. – stijn Oct 23 '10 at 8:04
@stijn: Are you also using Win7 x64? I wonder if it's better with the 32 bit version. – mmm bacon Oct 23 '10 at 14:23
yes x64 here as well. But before that, XP x86 and that was more or less the same. That, combined with the fact that on non-bootcamp laptops the fans act normally under Windows, is why I suspect there is something wrong with an apple-supplied driver. I might be wrong off course. Too bad I haven't any linux distro installed, anyone knows if there's also a heating issue? – stijn Oct 23 '10 at 15:13

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