Connecting case fans to pwr_fan connector

StriperMike

Member
Sep 2, 2007
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I am in the process of building my new PC and have a question regarding connecting my case fans to my motherboard. My case currently has 3 fans (HAF 922). My mobo (Asus P8P67 Pro) has only 2 cha_fan connections. I connected 2 of my case fans to the cha_fan connectors but now am left with one disconnected fan.

The mobo does have a pwr_fan connector that is not being used since my PSU does not provide a connector for that.

My question is can I connect my 3rd case fan to the pwr_fan connector? I'd like to be able to connect all three fans to the motherboard if possible without using a PSU molex. This way I can avoid additional cable clutter, having the fan speed constantly be at 100% and hopefully control fan speed thru the UEFI/Windows.

Thanks!
Mike
 
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Rhonen

Junior Member
Sep 13, 2010
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There should be a 3rd fan connector on the P8P67 Pro labeled pwr_fan, top right corner of the board above the EPU switch. I used that one and it worked fine.
 

StriperMike

Member
Sep 2, 2007
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Do you know if you are able to control the fan speed when connected to the pwr_fan connector through UEFI or a Windows based solution? Does the pwr_fan operate the same way the cha_fan connectors?
 

Rhonen

Junior Member
Sep 13, 2010
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Oh, that, I don't know, I just put it together last night, so I haven't even taken a good look through the UEFI yet.

edit: I did took a quick look at the manual (dowloaded pdf from website), and it mentions the included asus utility software has a cpu and chassis fan controls, still don't know if that includes any fans connected to pwr_fan.
 
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Accord99

Platinum Member
Jul 2, 2001
2,259
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On my P8P67 Deluxe, the PWR fan connectors can't be controlled by Asus Q-Fan or the Fan XPert utility. Only the two CHA fan connectors work with 3-pin fans, while the CPU fan connector requires a PWM fan for control.