ASROCK B660M Steel Legend Manual page 24

Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.1, No. 28)
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/Water Pump Fan
Connectors
(4-pin CHA_FAN1/WP)
(see p.1, No. 29)
(4-pin CHA_FAN2/WP)
(see p.1, No. 23)
(4-pin CHA_FAN3/WP)
(see p.1, No. 24)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.1, No. 2)
GND
PRESENCE#
MIC_RET
OUT_RET
1
OUT2_L
J_SENSE
OUT2_R
MIC2_R
MIC2_L
1
GND
2
FAN_VOLTAGE
3
CHA_FAN_SPEED
4
FAN_SPEED_CONTROL
GN D
FAN_VOLTAGE
CHA_FAN_SPEED
FAN_SPEED_CONTRO L
1 2 3 4
FAN_SPEED_CONTROL
CPU_FAN_SPEED
+12V
GND
1 2 3 4
B660M Steel Legend
This header is for connecting
audio devices to the front
audio panel.
This motherboard
provides three 4-Pin water
cooling chassis fan
connectors. If you plan to
connect a 3-Pin chassis water
cooler fan, please connect it to
Pin 1-3.
This motherboard provides
a 4-Pin CPU fan (Quiet Fan)
connector. If you plan to con-
nect a 3-Pin CPU fan, please
connect it to Pin 1-3.
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