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On Windows 7 you have the ability set the System cooling policy to passive. What does that actually do?

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System Cooling Policy lets you change the cooling mode of your system.

What does this actually do?

Active increases the fan speed before slowing the processor to maintain cooling, while Passive slows down the processor before increasing the fan speed. Passive saves a lot more power as it reduces the clock on your processor, hence giving your more battery time.

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  • But which one is better for the health of the computer? (assume battery life is not an issue here)
    – Pacerier
    Commented Sep 18, 2016 at 16:59

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