AMD SB750 User Manual

 

 
                                                                                                                                                                                                                                                                                                                                                             

 
 
 

             

               

               

IR 

Pin 1 

GN

D

 

IRRX

 

NC 

VCC5

 

IRT

X 

2 

5 

6 

 

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 

 

 

                       

 

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 .   

 

HDMI_SPDIF_OUT 

GND 

SPDIF