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Thread: 890GX Extreme4 chassis fan speed




  1. #1
    Join Date
    Dec 2010
    Location
    Denmark
    Posts
    1

    Default 890GX Extreme4 chassis fan speed

    Hello all,

    Have just finished a new build with an 890GX Extreme4 in a Cooler Master CM 690 case.

    The case has 3 fans and the Mb has 3 chassis fan connections.

    My problem is that I can only adjust the fan speed on connections #2 & #3 - on #1, it runs at full speed no matter what setting I make in either BIOS or OC Tune.

    Fans all have 3-pin connectors, as does MB connection #2 & #3, but #1 has 4 pins. Still, it seems to use the same type of pins as #2 & #3 when you connect a 3-pin plug, but speed won't be adjusted.

    Any help much appreciated, as I'm trying to make the system as quiet as possible.

    Regards,
    Erling G-P

  2. #2
    Join Date
    May 2010
    Location
    Taipei, Taiwan
    Posts
    96

    Default Re: 890GX Extreme4 chassis fan speed

    Dear EGP,

    If you want to control CHA_FAN1 speed, the chassis fan must be 4-pin chassis fan.
    Please kindly connect 4-pin chassis fan to CHA_FAN1 to try.

    Thanks!

    Have a nice day
    ASRock TSD
    ASRock Tech Support Staff

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