ASRock IMB-146 Series manual Lout L

Line-Out Header
	1	PIN	Signal Name
(4-pin LINE_OUT1)		1	LOUT L
(see p.10, No. 32)		2	AGND
		3	LOUT R
		4	LOUT JD
MIC-In Header
	1	PIN	Signal Name
(4-pin MIC_IN1)		1	MIC L
(see p.10, No. 33)		2	AGND
		3	MIC R
		4	MIC JD

Chassis Fan Connector

(3-pin CHA_FAN1)

(see p.10, No. 27)

GND +12V

FAN_SPEED

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

CPU Fan Connector

(4-pin CPU_FAN1)

(see p.10, No. 8)

FAN_SPEED_CONTROL

FAN_SPEED

+12V GND

1 2 3 4

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.

Serial Port Header

(10-pin COM2) (see p.10, No. 4)

1	PIN	Signal Name	PIN	Signal Name
	2	NC	1	GND
	4	COM PWR/RI	3	DTR
	6	CTS	5	TXD
	8	RTS	7	RXD
	10	DSR	9	COM PWR/DCD

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