ASRock H77M User Manual - Page 34

Please connect an ATX 12V

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Chassis and Power Fan Connectors (4-pin CHA_FAN1) (see p.13, No. 22) CHA_FAN_SPEED +12V GND FAN_SPEED_CONTROL (3-pin CHA_FAN2) (see p.13, No. 31) Please connect the fan cables to the fan connectors and match the black wire to the ground pin. CHA_FAN1 and CHA_FAN2 supports Fan Control. (3-pin PWR_FAN1) (see p.13, No. 32) PWR_FAN_SPEED +12V GND CPU Fan Connectors (4-pin CPU_FAN1) (see p.13, No. 2) 4 3 2 1 GND +12V CPU_FAN_SPEED FAN_SPEED_CONTROL Please connect the CPU fan cable to the 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 (3-pin CPU_FAN2) (see p.13, No. 3) ATX Power Connector (24-pin ATXPWR1) (see p.13, No. 6) 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. 20-Pin ATX Power Supply Installation 1 13 ATX 12V Power Connector (8-pin ATX12V1) (see p.13, No. 1) 5 1 8 4 Please connect an ATX 12V power supply to this connector. 34

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34
Chassis and Power Fan Connectors
Please connect the fan cables
(4-pin CHA_FAN1)
to the fan connectors and match
(see p.13,
No. 22)
the black wire to the ground pin.
CHA_FAN1 and CHA_FAN2
(3-pin CHA_FAN2)
supports Fan Control.
(see p.13,
No. 31)
(3-pin PWR_FAN1)
(see p.13,
No. 32)
CPU Fan Connectors
Please connect the CPU fan
(4-pin CPU_FAN1)
cable to the connector and
(see p.13,
No. 2)
match the black wire to the
ground pin.
GND
+12V
PWR_FAN_SPEED
(3-pin CPU_FAN2)
(see p.13,
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.
3-Pin Fan Installation
Pin 1-3 Connected
ATX Power Connector
Please connect an ATX power
(24-pin ATXPWR1)
supply to this connector.
(see p.13,
No. 6)
12
1
24
13
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
4
3
2
1
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.
12
1
24
13
ATX 12V Power Connector
Please connect an ATX 12V
(8-pin
ATX12V1)
power supply to this connector.
(see p.13,
No. 1)
5
1
8
4