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Asus P8Z68-V & Cooler Master ATCS 840

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October 20, 2011 7:26:17 PM

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!
a b Ĉ ASUS
a c 216 V Motherboard
October 20, 2011 8:21:55 PM

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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