ASROCK H81M Handbuch Seite 28

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CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.1, No. 2)
(3-pin CPU_FAN2)
(see p.1, No. 3)
ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 6)
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.1, No. 1)
Infrared Module Header
(5-pin IR1)
(see p.1, No. 21)
Serial Port Header
(9-pin COM1)
(see p.1, No. 20)
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This motherboard pro-
vides a 4-Pin CPU fan
GND
+12V
(Quiet Fan) connector.
CPU_FAN_SPEED
FAN_SPEED_CONTROL
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
GND
+12V
FAN_SPEED
This motherboard pro-
12 24
vides a 24-pin ATX power
connector. To use a 20-pin
ATX power supply, please
plug it along Pin 1 and Pin
13.
1 13
This motherboard pro-
1
5
vides an 8-pin ATX 12V
power connector. To use a
4-pin ATX power supply,
8 4
please plug it along Pin 1
and Pin 5.
This header supports an optional
IRTX
+5VSB
wireless transmitting and
DUMMY
receiving infrared module.
1
GND
IRRX
This COM1 header
RRXD1
DDTR#1
supports a serial port
DDSR#1
CCTS#1
module.
1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1