ASRock A785GXH/128M User Manual - Page 33

Chassis, NB and Power Fan Connectors

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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.13 No. 19) Chassis Speaker Header (4-pin SPEAKER 1) (see p.13 No. 21) PLED+ PLEDPWRBTN# GND 1 DUMMY RESET# GND HDLEDHDLED+ 1 SPEAKER DUMMY DUMMY +5V Chassis, NB and Power Fan Connectors (3-pin CHA_FAN1) (see p.13 No. 22) GND +12V CHA_FAN_SPEED (3-pin NB_FAN1) (see p.13 No. 10) NB_FAN_SPEED +12V GND This header accommodates several system front panel functions. Please connect the chassis speaker to this header. Please connect the fan cables to the fan connectors and match the black wire to the ground pin. (3-pin PWR_FAN1) (see p.13 No. 37) GND +12V PWR_FAN_SPEED CPU Fan Connector (4-pin CPU_FAN1) (see p.13 No. 5) FAN_SPEED_CONTROL 4 CPU_FAN_SPEED 3 +12V 2 GND 1 Please connect the CPU fan cable to this connector and match the black wire to the ground pin. Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin CPU fan still can work successfully even without the fan speed control function. If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this motherboard, please connect it to Pin 1-3. Pin 1-3 Connected 3-Pin Fan Installation 33

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CPU Fan Connector
Please connect the CPU fan
(4-pin CPU_FAN1)
cable to this connector and
(see p.13
No. 5)
match the black wire to the
ground pin.
Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin
CPU fan still can work successfully even without the fan speed control function.
If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this
motherboard, please connect it to Pin 1-3.
3-Pin Fan Installation
Pin 1-3 Connected
+
5
V
D
UMMY
D
UMMY
SPEAKE
R
1
G
N
D
PW
RB
TN#
PLE
D
-
PLE
D
+
D
UMMY
R
ESET#
G
N
D
H
D
LE
D
+
H
D
LE
D
-
1
System Panel Header
This header accommodates
(9-pin PANEL1)
several system front panel
(see p.13
No. 19)
functions.
Chassis Speaker Header
Please connect the chassis
(4-pin SPEAKER 1)
speaker to this header.
(see p.13
No. 21)
4
3
2
1
G
N
D
+12V
C
PU_FAN_SPEE
D
FAN_SPEE
D
_
C
ONT
R
OL
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].
Chassis, NB and Power Fan Connectors
Please connect the fan cables
(3-pin CHA_FAN1)
to the fan connectors and
(see p.13
No. 22)
match the black wire to the
ground pin.
(3-pin NB_FAN1)
(see p.13
No. 10)
(3-pin PWR_FAN1)
(see p.13
No. 37)
GND
+1
2
V
CHA_FAN_
SP
EED
GND
+12V
NB_FAN_SPEED
PWR_FAN_SPEED
GND
+12V