ASRock B85M Pro4 manual Chassis Speaker Header Pin SPEAKER1 See p.10, No

B85M Pro4

1.High Definition Audio supports Jack Sensing, but the panel wire on the chassis must support HDA to function correctly. Please follow the instructions in our manual and chassis manual to install your system.

2.If you use an AC’97 audio panel, please install it to the front panel audio header by the steps below:

A.Connect Mic_IN (MIC) to MIC2_L.

B.Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L.

C.Connect Ground (GND) to Ground (GND).

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

E.To activate the front mic, go to the “FrontMic” Tab in the Realtek Control panel and adjust “Recording Volume”.

Chassis Speaker Header

(4-pin SPEAKER1)

(see p.10, No. 13)

DUMMY SPEAKER

1

+5V DUMMY

Please connect the chassis speaker to this header.

SPDIF Out Connector

(2-pin SPDIF_OUT1)

(see p.10, No. 24)

1

GND

SPDIFOUT

Please connect the SPDIF_OUT connector of a HDMI VGA card to this header with a cable.

Chassis and Power Fan

Connectors

(4-pin CHA_FAN1)

(see p.10, No. 15)

(3-pin CHA_FAN2) (see p.10, No. 25)

(3-pin PWR_FAN1) (see p.10, No. 1)

CHA_FAN_SPEED	Please connect fan cables
+12V FAN_SPEED_CONTROL	to the fan connectors and
GND
	match the black wire to
	the ground pin.

GND +12V

CHA_FAN_SPEED

+12V

GND PWR_FAN_SPEED

English

25