ASRock M3N78D FX User Manual - Page 22

Chassis and NB Fan Connectors

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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. System Panel Header (9-pin PANEL1) (see p.11, No. 19) Chassis Speaker Header (4-pin SPEAKER 1) (see p.11, No. 17) Power LED Header (3-pin PLED1) (see p.11 No. 20) PLED+ PLEDPWRBTN# GND 1 DUMMY RESET# GND HDLEDHDLED+ 1 SPEAKER DUMMY DUMMY +5V 1 PLED- PLED+ PLED+ 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). Chassis and NB Fan Connectors (3-pin CHA_FAN1) (see p.11 No. 34) GND +12V CHA_FAN_SPEED (3-pin PWR_FAN1) (see p.11 No. 18) GND +12V PWR_FAN_SPEED Please connect the fan cables to the fan connectors and match the black wire to the ground pin. CPU Fan Connector (4-pin CPU_FAN1) (see p.11, No. 35) 4 3 2 1 GND +12V CPU_FAN_SPEED FAN_SPEED_CONTROL Please connect the CPU fan cable to this connector and match the black wire to the ground pin. 22

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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.
+5V
DUMMY
DUMMY
SPEAKER
1
GND
PWR
B
TN#
PLED-
PLED+
DUMMY
RESET#
GND
HDLED+
HDLED-
1
System Panel Header
This header accommodates
(9-pin PANEL1)
several system front panel
(see p.11,
No. 19)
functions.
Chassis Speaker Header
Please connect the chassis
(4-pin SPEAKER 1)
speaker to this header.
(see p.11,
No. 17)
G
N
D
+1
2
V
C
HA_FAN_
SP
EE
D
CPU Fan Connector
Please connect the CPU fan
(4-pin CPU_FAN1)
cable to this connector and
(see p.11,
No. 35)
match the black wire to the
ground pin.
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
4
3
2
1
Chassis and NB Fan Connectors
Please connect the fan cables
(3-pin CHA_FAN1)
to the fan connectors and
(see p.11
No. 34)
match the black wire to the
ground pin.
(3-pin PWR_FAN1)
(see p.11
No. 18)
GND
+12V
PWR_FAN_SPEED
Power LED Header
Please connect the chassis
(3-pin PLED1)
power LED to this header to
(see p.11
No. 20)
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).
1
PLED+
PLED+
PLED-