Fan Jumper Q.

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Chrome-M-Dragon
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2011/03/17 02:16:38 (permalink)
What is the Power Fan header used for? I know system fans and chassis fans use, but not this one... Figured I'd ask lol (it is top right next to the dimm slots).

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    Fentzinator
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    Re:Fan Jumper Q. 2011/03/17 05:01:53 (permalink)
    I think your talking about the CPU fan header for your CPU cooler. 

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    dvallee
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    Re:Fan Jumper Q. 2011/03/17 06:22:25 (permalink)
    Whatever 3 pins fan you would like to hook up...
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    Chrome-M-Dragon
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    Re:Fan Jumper Q. 2011/03/17 13:48:23 (permalink)
    No it wasn't the CPU header. @dvallee I just wasn't sure what pwr_fan was. I know I could hook up any fan I wanted to it, just didn't know what specific use it was for, fan for what? Just looking for the best place to hook up my RAD's fans and it was an open spot lol

    Man is capable of as much atrocities as he has imagination.  
    People are, well, only human. We know that. The rule of law is borne out in identifying, condemning, and punishing those who violate the standards on which we all agree. This is exactly what we do in America.

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    Davabled
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    Re:Fan Jumper Q. 2011/03/17 14:15:52 (permalink)
    The Power Fan header will work with pretty much any 3-pin fan.
    It is tied to the motherboard's Voltage Regulator temp sensor, which monitors the PWM circuitry feeding power to the CPU.   This temp is displayed as VREG Temperature on the PC Health Status page in the BIOS.
    What this means is that if you enable Smart Fan in the BIOS for the Power Speed Control, Smart Fan will adjust the speed of the fan based on the Voltage Regulator temps specified.
     
    It's located in the BIOS under PC Health Status, then selecting SmartFan Function and pressing Enter.
     
    edit:
     
    Note, you don't have to use Smart Fan.  If you want to use this header without Smart Fan autmoatically adjusting the speed based on the VREG temp, you can just specify a manual setting (for example, set it at 100% to have the fan running full speed all the time.)
     
    If you have a seperate speed control knob for this fan, I'd recommend setting it at 100% in BIOS and using the speed control knob to adjust the speed.
     
    Lots of combinations are possible.
     
    Here's a picture showing the fan header placement on an X58 Classified for reference:


    post edited by Davabled - 2011/03/17 14:32:16

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