Fan headers on AI7 - what current can they source?

Discussion in 'Abit' started by Guest, Sep 16, 2004.

  1. Guest

    Guest Guest

    Hello All

    I have just salvaged some 120mm fans from a scrapped server case - they are
    three pin header terminated and will connect straight up to my AI7

    However, having searched the manual, I can't see what current the fan
    connectors will supply - does anybody here know?

    If so, please will you post the information in reply - thanks in advance for
    any help.


    RMC, England
    Guest, Sep 16, 2004
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  2. 0.5 Amps (or 500 mA) @ 12 Volts for each fan header. Drawing any more
    current than that will fry the traces on the motherboard for the fan
    Homer J. Simpson, Sep 16, 2004
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  3. Wayne Youngman, Sep 16, 2004
  4. Guest

    Guest Guest

    However, having searched the manual, I can't see what current the fan
    Thanks for your answers - I have some info too:

    First of all, the man on the overclockers forum said "Its only 2.8W thats
    fine on a fan header" - that is 233 mA current assuming a 12 V supply to the

    Secondly, the FAQ on the site says "

    Q:What is the wattage output of the fan headers on the VP6? I would like to
    use a Global Win FOP-38 heat sink and fan combo. This uses the Delta high
    speed (7000RPM) fan and draws 3.5 to 4 watts of power.

    A:The fan headers on the VP6 can sustain 0.5A currents (6watts) thus
    FOP32,FOP38 can be used. Fan headers on other ABIT motherboards can only
    sustain 0.3A currents (3.6 watts)".

    So, Wayne's 233 mA fan will be fine based on both bits of info above and
    also the answer from Homer, and my fan might be OK according to Homer but
    also might be a bit borderline at 350 mA according to the FAQ reponse I have
    copied above.

    I think I might fit a resistor to drop the current a bit (and the fan speed)
    just to be on the safe side.

    Cheers for your responses, Homer and Wayne!

    RMC, England
    Guest, Sep 16, 2004
  5. Guest

    0_Qed Guest

    AWww Geeze!

    You forgot the thank 'Folkert' too.


    0_Qed, Sep 16, 2004
  6. Guest

    RMC Guest

    AWww Geeze!
    Somehow, I doubt if Folkert is upset by being ostracized.


    RMC, Sep 16, 2004
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