ASRock W790 WS User Manual - Page 43
pin CHA_FAN2/WP see p.7, No. 30
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Page 43 highlights
W790 WS Chassis/Water Pump Fan Connectors (4-pin CHA_FAN1/WP) (see p.7, No. 12) (4-pin CHA_FAN2/WP) (see p.7, No. 30) (4-pin CHA_FAN3/WP) (see p.7, No. 31) This motherboard provides three 4-Pin water cooling chassis fan connectors. If you plan to connect a 3-Pin chassis water cooler fan, please connect it to Pin 1-3. CHA_FAN1/WP 4 3 21 FAN_SPEED_CONTROL CHA_FAN_SPEED FAN_VOLTAGE GND CHA_FAN3/WP GND FAN_VOLTAGE CHA_FAN_SPEED FAN_SPEED_CONTROL 1 2 34 CHA_FAN2/WP GND FAN_VOLTAGE CHA_FAN_SPEED FAN_SPEED_CONTROL 1 2 34 39
39
W790 WS
Chassis/Water Pump Fan Connectors
(4-pin CHA_FAN1/WP) (see p.7, No. 12)
(4-pin CHA_FAN2/WP) (see p.7, No. 30)
(4-pin CHA_FAN3/WP) (see p.7, No. 31)
°is motherboard provides three 4-Pin water cooling
chassis
fan connectors. If
you plan to connect a 3-Pin
chassis
water cooler fan, please connect it to Pin 1-3.
CHA_FAN1/WP
CHA_FAN2/WP
CHA_FAN3/WP
GND
CHA_FAN_SPEED
FAN_SPEED_CONTROL
FAN_VOLTAGE
1
2
3
4
GND
CHA_FAN_SPEED
FAN_SPEED_CONTROL
FAN_VOLTAGE
1
2
3
4
GND
FAN_VOLTAGE
CHA_FAN_SPEED
FAN_SPEED_CONTROL
4
3
2
1