AMD Socket AM2+ Quad Core Processor 790GX - Manual (Page 23)

18
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
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