ASROCK A55 Pro3 - Page 34

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CPU Fan Connectors Please connect the CPU fan
(4-pin CPU_FAN1)
cable to the connector and
(see p.12 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.
ATX Power Connector Please connect an ATX power
(24-pin ATXPWR1)
supply to this connector.
(see p.12 No. 9)
12
1
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 Please connect an ATX 12V
(8-pin ATX12V1)
power supply to this connector.
(see p.12 No. 2)
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.
(3-pin CPU_FAN2)
(see p.12 No. 6)
20-Pin ATX Power Supply Installation
4-Pin ATX 12V Power Supply Installation
Pin 1-3 Connected
3-Pin Fan Installation
12
1
24
13
24
13
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
1 2 3 4
GND
+12V
CPU_FAN_SPEED
4 8
1 5
4 8
1 5
Serial port Header This COM1 header supports a
(9-pin COM1)
serial port module.
(see p.12 No.29)