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HELP!

My cpu fan is INCREDIBLY ANNOYING. Fan RPM's change with cpu usage % creating spikes and constant changes. Rapid succession changes, and fan speed increase when CPU is in the 40c range is driving me nuts. My firewall will use 10% of the the 4th core few times a minute causing my CPU fan to spike in a weird pattern. HOW do i stop this?

I've tried setting fan speed to silent, turbo, standard in bios. Does nothing. Anyone have a solution?! -Thanks!
 

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Set it to manual and set the min fan speed to 40% (for example) and the max fan speed to 40%. It will run at 40% regardless of temps. However, if you get past a specific temp (around 85-86c on my 2500K) the fan will kick in 100% regardless.
 
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