ASROCK B85 Pro4 Quick Install Manual page 27

Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.1, No. 24)
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 Speaker Header
(4-pin SPEAKER1)
(see p.1, No. 20)
SPDIF Out Connector
(2-pin SPDIF_OUT1)
(see p.1, No. 23)
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)
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 the chassis
DUMMY SPEAKER
speaker to this header.
1
+5V DUMMY
Please connect the
1
SPDIF_OUT connector of
GND
a HDMI VGA card to this
SPDIFOUT
header with a cable.
Please connect fan cables
to the fan connectors and
GND
match the black wire to
+12V
FAN_SPEED
the ground pin.
FAN_SPEED_CONTROL
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL
B85 Pro4
25