ASRock M3A780GXH/128M User Manual - Page 38

Chassis, NB and Power Fan Connectors

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Page 38 highlights

Chassis Speaker Header (4-pin SPEAKER 1) (see p.14 No. 21) 1 SPEAKER DUMMY DUMMY +5V Chassis, NB and Power Fan Connectors (3-pin CHA_FAN1) (see p.14 No. 30) GND +12V CHA_FAN_SPEED (3-pin NB_FAN1) (see p.14 No. 10) NB_FAN_SPEED +12V GND 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.14 No. 41) PWR_FAN_SPEED +12V GND CPU Fan Connector (4-pin CPU_FAN1) (see p.14 No. 3) 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 ATX Power Connector (24-pin ATXPWR1) (see p.14 No. 9) 12 24 Please connect an ATX power supply to this connector. 1 13 Though this motherboard provides 24-pin ATX power connector, 12 24 it can still work if you adopt a traditional 20-pin ATX power supply. To use the 20-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 13. ATX 12V Power Connector (8-pin ATX12V1) (see p.14 No. 1) 20-Pin ATX Power Supply Installation 1 13 4 8 1 5 Please connect an ATX 12V power supply to this connector. 38

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ATX 12V Power Connector
Please connect an ATX 12V
(8-pin
ATX12V1)
power supply to this connector.
(see p.14
No. 1)
CPU Fan Connector
Please connect the CPU fan
(4-pin CPU_FAN1)
cable to this connector and
(see p.14
No. 3)
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
DU
MMY
DU
MMY
S
PEAKE
R
1
Chassis Speaker Header
Please connect the chassis
(4-pin SPEAKER 1)
speaker to this header.
(see p.14
No. 21)
4
3
2
1
G
N
D
+12V
C
P
U
_FAN_
S
PEE
D
FAN_
S
PEE
D
_
C
ONT
R
OL
Chassis, NB and Power Fan Connectors
Please connect the fan cables
(3-pin CHA_FAN1)
to the fan connectors and
(see p.14
No. 30)
match the black wire to the
ground pin.
(3-pin NB_FAN1)
(see p.14
No. 10)
(3-pin PWR_FAN1)
(see p.14
No. 41)
GND
+1
2
V
CHA_FAN_S
P
EED
GND
+12V
NB_FAN_SPEED
20-Pin ATX Power Supply Installation
Though this motherboard provides 24-pin ATX power connector,
it can still work if you adopt a traditional 20-pin ATX power supply.
To use the 20-pin ATX power supply, please plug your power
supply along with Pin 1 and Pin 13.
ATX Power Connector
Please connect an ATX power
(24-pin ATXPWR1)
supply to this connector.
(see p.14
No. 9)
12
1
24
13
12
1
24
13
GND
+12V
PWR_FAN_SPEED
4
1
8
5