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ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.6, No. 4)
PCIe Power Connectors
(4-pin SLI/XFIRE_
PWR1)
(see p.6, No. 25)
(4-pin SLI/XFIRE_
PWR2)
(see p.6, No. 24)
Infrared Module Header
(5-pin IR1)
(see p.6, No. 21)
Serial Port Header
(9-pin COM2)
(see p.6, No. 20)
TPM Header
(17-pin TPMS1)
(see p.6, No. 6)
8
5
4
1
IRTX
+5VSB
DUMMY
1
GND
IRRX
RRXD1
DDTR#1
DDSR#1
CCTS#1
1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
his 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.
Please connect a 4 pin molex
power cable to this connector
when more than three
PCIe cards are installed.
his header supports an optional
wireless transmitting and
receiving infrared module.
his COM2 header
supports a serial port
module.
his connector supports
Trusted Platform Module
(TPM) system, which can
securely store keys, digital
certiicates, passwords,
and data. A TPM system
also helps enhance
network security, protects
digital identities, and
ensures platform integrity.
H81 Pro-G
21
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