ASRock FM2A55M-DGS - Manual (Page 20)

20
ASRock FM2A55M-DGS Motherboard
English
CPU Fan Connectors Please connect the CPU fan
(4-pin CPU_FAN1) cable to the connector and
(see p.2 No. 4) 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.2 No. 6)
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.
20-Pin ATX 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
Chassis and Power Fan Connectors Please connect the fan cables
(4-pin CHA_FAN1) to the fan connectors and
(see p.2 No. 16) match the black wire to the
ground pin. CHA_FAN1 fan
(3-pin PWR_FAN1) speed can be controlled through
(see p.2 No. 30) UEFI or AXTU.
GND
+12V
PWR_FAN_SPEED
Serial port Header This COM1 header supports a
(9-pin COM1) serial port module.
(see p.2 No. 23)
ATX 12V Power Connector Please connect an ATX 12V
(4-pin ATX12V1) power supply to this connector.
(see p.2, No. 1)
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL