ASRock Z77 WS manual Match the black wire to, Ground pin, Supply to this connector

CPU Fan Connectors	3	2	1	Please connect the CPU fan
4				cable to the connector and
(4-pin CPU_FAN1)
(see p.2, No. 4)			GND	match the black wire to the
		+12V		ground pin.
FAN_SPEED_CONTROL
	CPU_FAN_SPEED

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)

(see p.2, No. 5)

ATX Power Connector		12	24	Please connect an ATX power
(24-pin ATXPWR1)				supply to this connector.
(see p.2, No. 8)
		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	5	Please connect an ATX 12V
(8-pin ATX12V1)				power supply to this connector.
(see p.2, No. 1)		4	1

Though this motherboard provides 8-pin ATX 12V power connector, it can still work if you adopt a traditional 4-pin ATX 12V power supply. To use the 4-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 5.

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4-Pin ATX 12V Power Supply Installation 4 1

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ASRock Z77 WS Motherboard