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Cpu fan speed 100%

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  • Fan
  • CPUs
Last response: in Motherboards
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July 18, 2014 7:56:57 PM

Im losing my mind here, I just upgraded my motherboard and cpu and even with a 3 pin fan, even when changing fan speed in bios, fan xpert does nothing, speedfan cant find my cpu fan or temps.
I have an Asus m5a99fx Pro R2.0, with an AMD fx-6300. Nothing I do changes the cpu fan speed. Asus epu, speedfan, bios, fan xpert all have failed to lower the fan speed below 100%. I need help here.

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a c 418 à CPUs
July 18, 2014 8:08:39 PM

The stock cooler is a 4 pin PWM fan. What are you using?
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July 18, 2014 8:15:59 PM

the stock 3 pin fans that came with my corsair h-70 water cooler...my last motherboard was a 4 pin fan slot, and the 3 pins worked fine on that one. Also the chassis fan 1 and 2 are 4 pin and have 3 pin fan connectors and those are controlled just fine, its only the cpu fans that wont comply.
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July 18, 2014 8:23:57 PM

Im gonna try something creative, gonna plug my cpu fan into chassis 3, and move chassis 2 onto cpu and see if one gets controlled and the other runs full speed, because that would be acceptable
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July 18, 2014 8:48:04 PM

Ok it actually worked, its a ghetto fix, but at least the radiator from my water cooler is quiet now, i adjusted the settings in fan xpert for chassis to increase as temps get higher. Prime 95 test maxed out at about 45c. This will do for now, may look into getting a fan controller. Thanks for trying to help though.
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