ASRock FM2A55M-HD User Manual - Page 28

ATX 12V Power Connector, Please connect an ATX 12V, Serial port Header

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CPU Fan Connector FAN_SPEED_CONTROL (4-pin CPU_FAN1) CPU_FAN_SPEED +12V (see p.10 No. 3) GND 1 2 3 4 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 ATX Power Connector (24-pin ATXPWR1) (see p.10 No. 5) 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 (4-pin ATX12V1) (see p.10 No. 1) Please connect an ATX 12V power supply to this connector. Serial port Header (9-pin COM1) (see p.10 No. 19) RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 This COM1 header supports a serial port module. English 24

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English
24
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.10
No. 5)
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
Serial port Header
This COM1 header supports a
(9-pin COM1)
serial port module.
(see p.10
No. 19)
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
CPU Fan Connector
Please connect the CPU fan
(4-pin CPU_FAN1)
cable to the connector and
(see p.10
No. 3)
match the black wire to the
ground pin.
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
1
2
3
4
ATX 12V Power Connector
Please connect an ATX 12V
(4-pin
ATX12V1)
power supply to this connector.
(see p.10
No. 1)