ASRock 990FX Extreme9 manual CPU Fan Connectors

Chassis Speaker Header	Please connect the chassis
(4-pin SPEAKER 1)	speaker to this header.
(see p.14 No. 19)
Power LED Header	Please connect the chassis
(3-pin PLED1)	power LED to this header to
(see p.14 No. 30)	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 and Power Fan Connectors	Please connect the fan cables
(4-pin CHA_FAN1)	to the fan connectors and
(see p.14 No. 20)	match the black wire to the
	ground pin. CHA_FAN1/2/3 fan
	speed can be controlled through
(3-pin CHA_FAN2)	UEFI or AXTU.
(see p.14 No. 6)
(3-pin CHA_FAN3)
(see p.14 No. 24)
(3-pin PWR_FAN1)
(see p.14 No. 9)

CPU Fan Connectors	FAN_SPEED_CONTROL
(4-pin CPU_FAN1)	CPU_FAN_SPEED
(see p.14 No. 4)	+12V
	GND
	1	2	3	4

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

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