ASRock Fatal1ty Z77 Professional-M manual ATX Power Connector, Supply to this connector

Chassis Speaker Header	Please connect the chassis
(4-pin SPEAKER 1)	speaker to this header.
(see p.15, No. 20)
Power LED Header	Please connect the chassis
(3-pin PLED1)	power LED to this header to
(see p.15, No. 14)	indicate system power status.
	The LED is on when the system
	is operating. The LED keeps
	blinking in S1/S3 state. The
	LED is off in S4 state or S5
	state (power off).

Chassis and Power Fan Connectors

(4-pin CHA_FAN1)	CHA_FAN_SPEED
	+12V	FAN_SPEED_CONTROL
(see p.15, No. 21)	GND

(3-pin CHA_FAN2)

(see p.15, No. 37)

(3-pin PWR_FAN1)

(see p.15, No. 36)

Please connect the fan cables to the fan connectors and match the black wire to the ground pin. CHA_FAN1 and CHA_FAN2 support Fan Control.

CPU Fan Connectors

(4-pin CPU_FAN1)	FAN_SPEED_CONTROL	4
	CPU_FAN_SPEED	3
(see p.15, No. 3)	+12V	2
	GND	1

Please connect the CPU fan cable to the connector and 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.15, No. 4)

ATX Power Connector	12	24	Please connect an ATX power
(24-pin ATXPWR1)			supply to this connector.
(see p.15, No. 7)
	1	13

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