ASRock A55 Pro manual CPU Fan Connectors

English

CPU Fan Connectors	FAN_SPEED_CONTROL				Please connect the CPU fan
(4-pin CPU_FAN1)	CPU_FAN_SPEED				cable to the connector and
(see p.2 No. 4)	+12V				match the black wire to the
	GND
	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
ATX Power Connector	12	24	Please connect an ATX power
(24-pin ATXPWR1)			supply to this connector.
(see p.2 No. 7)

113

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

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 51 4-pin ATX power supply, please plug your power supply along with

Pin 1 and Pin 5.

4-Pin ATX 12V Power Supply Installation 8 4

Serial port Header	This COM1 header supports a
(9-pin COM1)	serial port module.
(see p.2 No.25)

22

ASRock A55 Pro Motherboard