Com1, Hdmi_spdif_out gnd spdif – AMD Socket AM2+ Quad Core AMD Processor SB750 User Manual
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(10) IR infrared module Headers (5-pin): IR1
This connector supports the optional wireless transmitting and receiving infrared
module. You must configure the setting through the BIOS setup to use the IR function.
IR infrared module Headers
IR
Pin 1
GN
D
IRRX
NC
VCC5
IRT
X
2
5
6
(11)
Serial COM Port header:
COM1
COM1 is the 9-pin block pin-header. The On-board serial port can be disabled through
BIOS SETUP. Please refer to Chapter 3 “INTEGRATED PERIPHERALS SETUP” section
for more detail information.
Serial COM Port 9-pin Block
Pin1
(12) HDMI-SPDIF Out header: SPDIF Out header
The SPDIF output is capable of providing digital audio to external speakers or compressed
AC3 data to an external Dolby digital decoder. Use this feature only when your stereo system
has digital input function. Some of the VGA Card need connect SPDIF-IN Connector，so its
HDMI Port can make sounds .
1
2
HDMI_SPDIF_OUT
GND
SPDIF