ASRock B75M-DGS User Manual - Page 27

Please connect an ATX 12V

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Chassis and Power Fan Connectors (4-pin CHA_FAN1) FAN_SPEED_CONTROL CHA_FAN_SPEED (see p.12, No. 10) +12V GND (3-pin PWR_FAN1) PWR_FAN_SPEED +12V (see p.12, No. 26) GND Please connect the fan cables to the fan connectors and match the black wire to the ground pin. CHA_FAN1 supports Fan Control. CPU Fan Connector FAN_SPEED_CONTROL (4-pin CPU_FAN1) CPU_FAN_SPEED +12V (see p.12, No. 2) 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 12 24 (24-pin ATXPWR1) (see p.12, No. 5) 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.12, No. 1) Please connect an ATX 12V power supply to this connector. Serial port Header (9-pin COM1) (see p.12, No. 19) This COM1 header supports a serial port module. 27

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27
Chassis and Power Fan Connectors
Please connect the fan cables
(4-pin CHA_FAN1)
to the fan connectors and match
(see p.12,
No. 10)
the black wire to the ground pin.
CHA_FAN1 supports Fan
(3-pin PWR_FAN1)
Control.
(see p.12,
No. 26)
CPU Fan Connector
Please connect the CPU fan
(4-pin CPU_FAN1)
cable to the connector and
(see p.12,
No. 2)
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.
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.12,
No. 5)
ATX 12V Power Connector
Please connect an ATX 12V
(4-pin
ATX12V1)
power supply to this connector.
(see p.12,
No. 1)
GND
+12V
PWR_FAN_SPEED
FAN_SPEED_CONTROL
GND
+12V
CHA_FAN_SPEED
12
1
24
13
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
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
1
2
3
4
Serial port Header
This COM1 header supports a
(9-pin COM1)
serial port module.
(see p.12,
No. 19)