My understanding is that under OS X I can use the smcFanControl app to manually specify the fan RPMs, but I have not been able to find a similar way to control or fix the fan speed once I am booted into Windows. So long as the 105 degree Tj Max point is not passed the computer keeps up with whatever game you're playing just fine. So I hope this makes it clear that Apple's fan speed scaling is a bit on the conservative side when the temperatures are high.įrom what I can tell, once you get the machine nice and toasty and the load "stabilizes" it will generally be in a state of equilibrium where the CPU core temperatures hover in the high 80's and 90 degrees C, making occasional excursions above 100 degrees C. I know that the fans are capable of running higher than the highest they have been recorded to run which is in the neighborhood of 4900 RPM, they should be capable of going to 6000 RPM, which, even though it would be noisy would be keeping the CPU cooler, which is a good thing in my book. This is somewhat inconvenient of course, as it means the CPU has reached a temperature that it should never reach, and also requires a reboot.
#How to use macs fan control windows 7#
Gaming on the rMBP under Windows 7 is a very good experience but I have noticed that unless I elevate the chassis there is a tendency for the automatically regulated fan speed to fail to engage a rising computational load fast enough to keep the CPU under thermal shutdown temperature (Tj max) and freeze the machine.
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