ASRock Fatal1ty X79 Professional manual CPU Fan Connectors Please connect the CPU fan

(3-pin CHA_FAN3)		GND
(see p.14	No. 17)	+12V
		CHA_FAN_SPEED
(3-pin PWR_FAN1)		PWR_FAN_SPEED
		+12V
(see p.14	No. 44)
		GND

CPU Fan Connectors	Please connect the CPU fan
(4-pin CPU_FAN1)	cable to the connector and
(see p.14 No. 5)	match the black wire to the
	ground pin.

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

(3-pin CPU_FAN2)	CPU_FAN_SPEED
(see p.14 No. 6)	+12V
	GND

ATX Power Connector		12	24	Please connect an ATX power
(24-pin ATXPWR1)				supply to this connector.
(see p.14 No. 7)
		1	13
	Though this motherboard provides 24-pin ATX power connector,				12	24
	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		1	13

ATX 12V Power Connector 8

(8-pin ATX12V1)

(see p.14 No. 3)

4

5

1

Please connect an ATX 12V power supply to this connector.

44