ASRock FM2A75M-ITX R2.0 manual CPU Fan Connectors, Pled System Power LED

PLED (System Power LED):

Connect to the power status indicator on the chassis front panel. The LED is on when the system is operating. The LED keeps blinking when the sys-tem is in S1 sleep state. The LED is off when the system is in S3/S4 sleep state or powered off (S5).

HDLED (Hard Drive Activity LED):

Connect to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive is reading or writing data.

The front panel design may differ by chassis. A front panel module mainly consists of power switch, reset switch, power LED, hard drive activity LED, speaker and etc. When connecting your chassis front panel module to this header, make sure the wire assignments and the pin assign-ments are matched correctly.

Chassis Speaker Header	Please connect the chassis
(4-pin SPEAKER 1)	speaker to this header.
(see p.14 No. 4)

Chassis Fan Connector
(4-pin CHA_FAN1)	GND
(see p.14 No. 6)	+12V
	CHA_FAN_SPEED
	FAN_SPEED_CONTROL

Please connect the fan cable to the fan connector and match the black wire to the ground pin.

CPU Fan Connectors	FAN_SPEED_CONTROL
(4-pin CPU_FAN1)	CPU_FAN_SPEED
(see p.14 No. 1)	+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

(3-pin CPU_FAN2)	GND
(see p.14 No. 2)	+12V
	CPU_FAN_SPEED

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