Intel Desktop Board D945GRW BOXD945GRWLK User Manual

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The board supports the Intel High Definition audio subsystem based on the Realtek ALC880 audio 
codec.  The audio subsystem supports the following features: 

•  Advanced jack sense for two of the back panel audio jacks that enables the audio codec to 

recognize the device that is connected to an audio port.  These two back panel audio jacks are 
capable of retasking according to user’s definition, or can be automatically switched 
depending on the recognized device type.  

•  Line out and Mic in functions for front panel audio jacks 
•  A signal-to-noise (S/N) ratio of 95 dB 

Audio software and drivers are available from Intel’s World Wide Web site. 

 

Obtaining audio software and drivers 

The board contains audio connectors on both the back panel and the component side of the board.  
The front panel audio connector (located on the component side) provides mic in and line out 
signals for front panel audio connectors. 

 

The location of the front panel audio connector 

The signal names of the front panel audio connector 

The back panel audio connectors 

The 8-channel (7.1) audio subsystem includes the following: 

•  Intel 82801G I/O Controller Hub (ICH7) 
•  Realtek ALC880 audio codec 
•  Microphone input that supports a single dynamic, condenser, or electret microphone 

The back panel audio connectors are configurable through the audio device drivers.  The available 
configurable audio ports are shown in Figure 9.