B85 Pro4
24
25
English
J_SENSE
OUT2_L
1
MIC_RET
PRESENCE#
GND
OUT2_R
MIC2_R
MIC2_L
OUT_RET
Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.1, No. 24)
This header is for
connecting audio devices
to the front audio panel.
Chassis Speaker Header
(4-pin SPEAKER1)
(see p.1, No. 20)
Please connect the chassis
speaker to this header.
SPDIF Out Connector
(2-pin SPDIF_OUT1)
(see p.1, No. 23)
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.1, No. 12)
(3-pin CHA_FAN2)
(see p.1, No. 25)
(3-pin PWR_FAN1)
(see p.1, No. 1)
Please connect fan cables
to the fan connectors and
match the black wire to
the ground pin.
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”.
1
+5V
DUMMY
DUMMY
SPEAKER
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL
FAN_SPEED
FAN_SPEED_CONTROL
+12V
GND
SPDIFOUT
GND
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