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Chassis Fan / Waterpump
Fan Connector
(4-pin CHA_FAN3/W_
PUMP)
(see p.1, No. 16)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.1, No. 5)
ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 6)
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.1, No. 1)
Serial Port Header
(9-pin COM1)
(see p.1, No. 24)
FAN_SPEED_CONTROL
CHA_FAN_SPEED
FAN_VOLTAGE
GND
FAN_VOLTAGE
CPU_FAN_SPEED
GND
FAN_SPEED_CONTROL
1
2
3
4
1
13
24
12
8
5
4
1
RRXD1
DDTR#1
DDSR#1
CCTS#1
1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
Please connect fan cables
to the fan connectors and
match the black wire to
the ground pin.
This motherboard pro-
vides a 4-Pin CPU fan
(Quiet Fan) connector.
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
This motherboard pro-
vides a 24-pin ATX power
connector. To use a 20-pin
ATX power supply, please
plug it along Pin 1 and Pin
13.
This motherboard pro-
vides an 8-pin ATX 12V
power connector. To use a
4-pin ATX power supply,
please plug it along Pin 1
and Pin 5.
This COM1 header
supports a serial port
module.
H270 Pro4
23
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