ASRock Fatal1ty X79 Professional manual Chassis Speaker Header Please connect the chassis

RESET (Reset Switch):

Connect to the reset switch on the chassis front panel. Press the reset switch to restart the computer if the computer freezes and fails to perform a normal restart.

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 system 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. 21)
Power LED Header	Please connect the chassis
(3-pin PLED1)	power LED to this header to
(see p.14 No. 23)	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

(4-pin CHA_FAN1)	GND
(see p.14 No. 11)	+12V
	CHA_FAN_SPEED
	FAN_SPEED_CONTROL

(3-pin CHA_FAN2)

GND

(see p.14 No. 20)+12V

CHA_FAN_SPEED

Please connect the fan cables to the fan connectors and match the black wire to the ground pin. CHA_FAN1, CHA_FAN2 and CHA_FAN3 support Fan Control.

43