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frugal technology, simple living and guerrilla large-appliance repair
Wed, 16 Oct 2013

File under obvious: Turning off CPU fan makes computer run hot

So I noticed a BIOS option to turn the CPU fan off on my HP Pavilion g6-2210us. I tried it.

After invoking this in the BIOS, the fan didn't run all the time. It ran about half or more of the time. And the bottom of the laptop was appreciably hotter.

So I went back into the BIOS and turned the fan back to "always on."

Now the laptop runs cooler.

Obviously, right?

The fan isn't so loud that it's a problem, and it does have variable speed, so having it cycle off and on is more noticeable than just having it on all the time.