ASRock 890GMH/USB3 manual CPU Fan Connector, Supply to this connector

D.MIC_RET and OUT_RET are for HD audio panel only. You don’t need to connect them for AC’97 audio panel.

E.To activate the front mic.

For Windows® XP / XP 64-bit OS:

Select “Mixer”. Select “Recorder”. Then click “FrontMic”. For Windows® 7 / 7 64-bit / VistaTM / VistaTM 64-bit OS:

Go to the "FrontMic" Tab in the Realtek Control panel. Adjust “Recording Volume”.

System Panel Header

(9-pin PANEL1)

(see p.12 No. 21)

1

PLED+

PLED-

PWRBTN#

GND

DUMMY RESET#

GND HDLED-

HDLED+

This header accommodates several system front panel functions.

Chassis Speaker Header

(4-pin SPEAKER 1)

(see p.12 No. 22)

1

SPEAKER DUMMY

DUMMY +5V

Please connect the chassis speaker to this header.

Chassis and Power Fan Connectors

(3-pin CHA_FAN1)		GND
(see p.12	No. 12)	+12V
		CHA_FAN_SPEED
(3-pin PWR_FAN1)		PWR_FAN_SPEED
		+12V
(see p.12	No. 33)
		GND

Please connect the fan cables to the fan connectors and match the black wire to the

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

Please connect the CPU fan cable to this 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
ATX Power Connector	12	24	Please connect an ATX power
(24-pin ATXPWR1)			supply to this connector.
(see p.12 No. 8)
	1	13

2 7