ASRock A75 Pro4-M manual CPU Fan Connectors, Please connect the CPU fan, Cable to the connector

CPU Fan Connectors	FAN_SPEED_CONTROL				Please connect the CPU fan
(4-pin CPU_FAN1)	CPU_FAN_SPEED				cable to the connector and
	+12V
(see p.2 No. 5)	GND				match the black wire to the
	1	2	3	4	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)	+12V
	GND
(see p.2 No. 6)	CPU_FAN_SPEED

ATX Power Connector	12	24	Please connect an ATX power
(24-pin ATXPWR1)			supply to this connector.
(see p.2 No. 9)

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	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 A75 Pro4-M Motherboard