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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 HD audio panel only. You don't
need to connect them for AC'97 audio panel.
E. Enter BIOS Setup Utility. Enter Advanced Settings, and then select
Chipset Configuration. Set the Front Panel Control option from
[Auto] to [Enabled].
System Panel Header
(9-pin PANEL1)
(see p.2, No. 19)
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.2, No. 17)
Power LED Header
(3-pin PLED1)
(see p.2 No. 20)
Chassis and NB Fan Connectors
(3-pin CHA_FAN1)
(see p.2 No. 34)
(3-pin PWR_FAN1)
(see p.2 No. 18)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.2, No. 35)
18
18
18
18
18
4 3 2 1
ASRock
M3N78D
Motherboard
This header accommodates
several system front panel
functions.
Please connect the chassis
speaker to this header.
Please connect the chassis
power LED to this header to
indicate system power status.
The LED is on when the system
is operating. The LED keeps
blinking in S1 state. The LED is
off in S3/S4 state or S5 state
(power off).
Please connect the fan cables
to the fan connectors and
match the black wire to the
ground pin.
Please connect the CPU fan
cable to this connector and
match the black wire to the
ground pin.
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