ASRock X79 Extreme3 Power LED Header Please connect the chassis, Power LED to this header to

Power LED Header		Please connect the chassis
(3-pin PLED1)		power LED to this header to
(see p.2	No. 20)	indicate system power status.
		The LED is on when the system
		is operating. The LED keeps
		blinking in S1 state. The LED is
		off in S3/S4 state or S5 state
		(power off).
Chassis, Power and SB Fan Connectors		Please connect the fan cables
(4-pin CHA_FAN1)		to the fan connectors and
(see p.2	No. 23)	match the black wire to the
		ground pin. CHA_FAN1,
		CHA_FAN2 and CHA_FAN3
(3-pin CHA_FAN2)		support Fan Control. SB_FAN1
(see p.2	No. 10)	Supports Quiet Fan.
(3-pin CHA_FAN3)
(see p.2	No. 22)
(3-pin PWR_FAN1)
(see p.2	No. 7)
(3-pin SB_FAN1)
(see p.2	No. 13)
CPU Fan Connectors		Please connect the CPU fan
(4-pin CPU_FAN1)		cable to the connector and
(see p.2	No. 6)	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)

(see p.2 No. 4)

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ASRock X79 Extreme3 Motherboard