ASROCK B250 Pro4 Mode D'emploi page 24

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 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 Fan Connectors
(4-pin CHA_FAN1)
(see p.1, No. 17)
(4-pin CHA_FAN2)
(see p.1, No. 2)
Chassis Fan / Waterpump
Fan Connector
(4-pin CHA_FAN3/W_
PUMP)
(see p.1, No. 16)
22
GND
PRESENCE#
MIC_RET
OUT_RET
1
OUT2_L
J_SENSE
OUT2_R
MIC2_R
MIC2_L
4 3 2 1
FAN_SPEED_CONTROL
CHA_FAN_SPEED
FAN_VOLTAGE
GND
4 3 2 1
FAN_SPEED_CONTROL
CHA_FAN_SPEED
FAN_VOLTAGE
GND
This header is for
connecting audio devices
to the front audio panel.
Please connect fan cables
to the fan connectors and
match the black wire to
the ground pin.
Please connect fan cables
to the fan connectors and
match the black wire to
the ground pin.