Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.2 No. 21)
Chassis, NB and Power Fan Connectors
(3-pin CHA_FAN1)
(see p.2 No. 30)
(3-pin NB_FAN1)
(see p.2 No. 10)
(3-pin PWR_FAN1)
(see p.2 No. 41)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.2 No. 3)
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.
ATX Power Connector
(24-pin ATXPWR1)
(see p.2 No. 9)
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 12V Power Connector
(8-pin ATX12V1)
(see p.2 No. 1)
ASRock
Please connect the chassis
speaker to this header.
Please connect the CPU fan
4
cable to this connector and
3
2
match the black wire to the
1
ground pin.
Pin 1-3 Connected
3-Pin Fan Installation
Please connect an ATX power
12
24
supply to this connector.
1
13
20-Pin ATX Power Supply Installation
Please connect an ATX 12V
4
8
power supply to this connector.
5
1
M3A780GXH/128M
Motherboard
Please connect the fan cables
to the fan connectors and
match the black wire to the
ground pin.
12
24
1
13
3 5
3 5
3 5
3 5
3 5