ASRock IMB-A180 manual Pin

CPU Fan Connector

(4-pin CPU_FAN1)

(see p.8, No. 9)

+12V CPU_FAN_SPEED

GND FAN_SPEED_CONTROL

Though this motherboard provides a 4-Pin CPU fan (Quiet Fan) connector, 3-Pin CPU fans can still work suc- cessfully even without fan speed control. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3.

Chassis Fan Connector

(3-pin CHA_FAN1)

(see p.8, No. 21)

GND +12V

CHA_FAN_SPEED

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

3W Audio AMP Output Wafer

(4-pin SPEAKER1)

(see p.8, No. 31)

	PIN	Signal Name
1	1	SPK L-
	2	SPK L+
	3	SPK R+
	4	SPK R-

Serial Port Header

(9-pin COM3)

(see p.8, No. 26)

(9-pin COM4)

(see p.8, No. 25)

(9-pin COM5)

(see p.8, No. 24)

(9-pin COM6)

(see p.8, No. 23)

RRXD1

DDTR#1

DDSR#1

CCTS#1

1

RRI#1

RRTS#1

GND

TTXD1

DDCD#1

These COM headers sup- port serial port modules.

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