Asus P8Z68-V & Cooler Master ATCS 840

Hi, i have Asus P8Z68-V & Cooler Master ATCS 840, the case contains 4 fans, it has 4 3-pin connectors and my mobo only has 2 pwr_fans and 2 cha_fans and 2 cpu_fans, how can i connect all of my fans to my mobo, is it possible or do i need to get another mobo? Thanks!
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  1. Pustik said:
    Hi, i have Asus P8Z68-V & Cooler Master ATCS 840, the case contains 4 fans, it has 4 3-pin connectors and my mobo only has 2 pwr_fans and 2 cha_fans and 2 cpu_fans, how can i connect all of my fans to my mobo, is it possible or do i need to get another mobo? Thanks!

    The ASUS P8Z68-V has the following fan headers:

    CPU_FAN - 4-pin with PWM fan speed control
    CPU_FAN_OPT - 4-pin with PWM fan speed control
    CHA_FAN1 - 4-pin with PWM fan speed control
    CHA_FAN2 - 3-pin with fan speed monitoring and speed control through ASUS Fan Xpert feature
    PWR_FAN1 - 3-pin with fan speed monitoring only. Fan always runs at maximum speed unless the fan has its own voltage drop down resistor(s)/potentiometer.
    PWR_FAN2 - 3-pin with fan speed monitoring only. Fan always runs at maximum speed unless the fan has its own voltage drop down resistor(s)/potentiometer.

    The four case fans can be connected to the CHA_FAN1, CHA_FAN2, PWR_FAN1 and PWR_FAN2 headers.

    When using a 3-pin fan with a 4-pin fan header, the fan is always on; there is no fan speed control.

    Fan has a 3-pin power connector; motherboard has a 4-pin fan header

    4-Pin Fan Header
    1 - Ground
    2 - +12 V
    3 - FAN_TACH
    4 - PWM FAN_CONTROL


    Fan has a 4-pin power connector; motherboard has a 3-pin fan header

    3-Pin Fan Header
    3 - Ground
    2 - FAN_POWER
    1 - FAN_TACH
    N/A - N/A
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