ASRock 990FX Extreme4 Chassis Speaker Header, Please connect the chassis, Speaker to this header

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 per- form 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 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 1		SPEAKER	Please connect the chassis
(4-pin SPEAKER 1)			speaker to this header.
		DUMMY
(see p.12 No. 23)	+5V DUMMY
Power LED Header			Please connect the chassis
(3-pin PLED1)			power LED to this header to
(see p.12 No. 22)			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)

(see p.12	No. 45)	GND
		+12V
		CHA_FAN_SPEED
		FAN_SPEED_CONTROL
(3-pin CHA_FAN2)		CHA_FAN_SPEED
		+12V
(see p.12	No. 4)	GND
		GND
(3-pin CHA_FAN3)		+12V
		CHA_FAN_SPEED
(see p.12	No. 2)

Please connect the fan cables to the fan connectors and match the black wire to the ground pin. CHA_FAN1/2/3 fan speed can be controlled through UEFI or AXTU.

33