ASRock Z370 Extreme4 User Manual - Page 30
pin CHA_FAN3/W, pin CPU_OPT/W
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Chassis Fan Connectors (4-pin CHA_FAN1) (see p.8, No. 27) (4-pin CHA_FAN2) (see p.8, No. 22) 4 3 21 FAN_SPEED_CONTROL CHA_FAN_SPEED FAN_VOLTAGE GND GND FAN_VOLTAGE FAN_SPEED FAN_SPEED_CONTROL Please connect fan cables to the fan connectors and match the black wire to the ground pin. 1 2 34 Chassis Optional/Water Pump Fan Connector (4-pin CHA_FAN3/W_ PUMP) (see p.8, No. 16) GND FAN_VOLTAGE FAN_SPEED FAN_SPEED_CONTROL 1 2 34 This motherboard provides a 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. CPU Fan Connector (4-pin CPU_FAN1) (see p.8, No. 2) FAN_SPEED_CONTROL CPU_FAN_SPEED FAN_VOLTAGE GND 1 2 34 This motherboard provides a 4-Pin CPU fan (Quiet Fan) connector. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3. CPU Optional/Water Pump Fan Connector (4-pin CPU_OPT/W_ PUMP) (see p.8, No. 3) FAN_SPEED_CONTROL CPU_FAN_SPEED FAN_VOLTAGE GND This motherboard 4 3 provides a 4-Pin water 2 1 cooling CPU fan connector. If you plan to connect a 3-Pin CPU water cooler fan, please connect it to Pin 1-3. English ATX Power Connector (24-pin ATXPWR1) (see p.8, No. 6) 24 12 24 1 13 This motherboard provides a 24-pin ATX power connector. To use a 20-pin ATX power supply, please plug it along Pin 1 and Pin 13.