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Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.1, No. 21)
1. High Definition Audio supports Jack Sensing, but the panel wire on the chassis must sup-
port 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 Fan Connectors
(4-pin CHA_FAN1)
(see p.1, No. 22)
(3-pin CHA_FAN2)
(see p.1, No. 4)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.1, No. 3)
GND
This header is for
PRESENCE#
MIC_RET
connecting audio devices
OUT_RET
to the front audio panel.
1
OUT2_L
J_SENSE
OUT2_R
MIC2_R
MIC2_L
Please connect fan cables
GN D
FAN_VOLTAGE
to the fan connector and
CHA_FAN_SPEED
FAN_SPEED_CONTROL
match the black wire to
the ground pin.
This motherboard pro-
4
3
2
1
vides a 4-Pin CPU fan
GND
FAN_VOLTAGE
(Quiet Fan) connector.
CPU_FAN_SPEED
FA N_SPEED_CONTROL
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
B150M Pro4S/D3
21
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