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X370M-HDV R4.0 / AB350M-HDV R4.0 / A320M-HDV R4.0 / A320M-DVS R4.0
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 con-
nect 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 Connector
(4-pin CHA_FAN1)
(see p.1, 2, No. 19)
(3-pin CHA_FAN2)
(see p.1, 2, No. 16)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.1, 2, No. 2)
ATX Power Connector
(24-pin ATXPWR1)
(see p.1, 2, No. 4)
FAN_SPEED_CONTROL
4
FAN_SPEED
3
FAN_VOLTAGE
2
GND
1
GND
FAN_VOLTAGE
CHA_FAN_SPEED
FAN_SPEED_CONTROL
CPU_FAN_SPEED
FAN_VOLTAGE
GND
1
2
3
4
12
24
1
13
Please connect fan cables
to the fan connectors and
match the black wire to
the ground pin.
This motherboard pro-
vides a 4-Pin CPU fan
(Quiet Fan) connector.
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
This motherboard pro-
vides a 24-pin ATX power
connector. To use a 20-pin
ATX power supply, please
plug it along Pin 1 and Pin
13.
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