ASROCK PHANTOM GAMING B650I LIGHTNING WiFi User Manual page 48

CPU/Water Pump Fan Connectors
(4-pin CPU_FAN1/WP) (see p.6, No. 4)
(4-pin CPU_FAN2/WP) (see p.6, No. 5)
This motherboard provides two 4-Pin water cooling CPU fan connectors. If you
plan to connect a 3-Pin CPU water cooler fan, please connect it to Pin 1-3.
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CPU_FAN2/WP
4 3 2 1
GND
FAN_VOLTAGE
CPU_F AN_SPEED
FAN_SPEED_CONTROL
CPU_FAN1/WP
4 3 2 1
GND
FAN_VOLTAGE
CPU_F AN_SPEED
FAN_SPEED_CONTROL