ASRock P75 Pro3 manual Please connect the fan cables, Match the black wire to, Ground pin

1 13

Though this motherboard provides 24-pin ATX power connector, it can still work if you adopt a traditional 20-pin ATX power supply. To use the 20-pin ATX power supply, please plug your

power supply along with Pin 1 and Pin 13.

20-Pin ATX Power Supply Installation

supply to this connector.

Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin CPU fan still can work successfully even without the fan speed control function. If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this

motherboard, please connect it to Pin 1-3.Pin 1-3 Connected 3-Pin Fan Installation

Chassis and Power Fan Connectors					Please connect the fan cables
(4-pin CHA_FAN1)	FAN_SPEED_CONTROL				to the fan connectors and match
(see p.2, No. 33)	CHA_FAN_SPEED				the black wire to the ground pin.
	+12V
	GND
(3-pin CHA_FAN2)
(see p.2, No. 13)
(3-pin PWR_FAN1)	PWR_FAN_SPEED
(see p.2, No. 32)	+12V
	GND
CPU Fan Connectors	4	3	2	1	Please connect the CPU fan
					cable to the connector and
(4-pin CPU_FAN1)
(see p.2, No. 1)				GND	match the black wire to the
		+12V
		CPU_FAN_SPEED			ground pin.
	FAN_SPEED_CONTROL

ATX Power Connector 12 24Please connect an ATX power

(24-pin ATXPWR1)

(see p.2, No. 5)

1224

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ASRock P75 Pro3 Motherboard