ASRock Z77 OC Formula ATX Power Connector, Supply to this connector, ATX 12V Power Connectors

CPU Fan Connectors	4	3	2	1	Please connect the CPU fan
(4-pin CPU_FAN1)					cable to the connector and
(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. 14)
	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

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ATX 12V Power Connectors	8	5	Please connect the ATX 12V
(8-pin ATX12V1)			power supplies to the
(see p.2, No. 2)	4	1	connectors.

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

(4-pin ATX12V2)

(see p.2, No. 1)

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ASRock Z77 OC Formula Motherboard