ASRock H77 Pro4-M - Manual (Page 33)

33
ASRock H77 Pro4-M Motherboard
English
CPU Fan Connectors Please connect the CPU fan
(4-pin CPU_FAN1) cable to the connector and
(see p.2, No. 3) match the black wire to the
ground pin.
(3-pin CPU_FAN2)
(see p.2, No. 1)
ATX Power Connector Please connect an ATX power
(24-pin ATXPWR1)
supply to this connector.
(see p.2, No. 8)
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.2, No. 4)
4-Pin ATX 12V Power Supply Installation
Though this motherboard provides 8-pin ATX 12V power connector, it can still work
if you adopt a traditional 4-pin ATX 12V power supply. To use the 4-pin ATX power
supply, please plug your power supply along with Pin 1 and Pin 5.
8 5
4 1
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
12
1
24
13
GND
+12V
CPU_FAN_SPEED
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
1 2 3 4
8 5
4 1