v Table of Contents
Contents

Chapter 1 Introduction...................................................... 2

1.1 Introduction....................................................................... 2
1.2 Specifications.................................................................... 3
1.2.1 Standard System On Module functions.......................... 3
1.2.2 VGA/flat panel Interface ................................................ 4
1.2.3 Audio function................ ................................................ 4
1.2.4 LCI............................. ............................................... ...... 4
1.2.5 Mechanical and environmental.................... ...................4
1.3 Board Dimensions.............................................................5
Figure 1.1:SOM-4481 dimensions.................................5
1.4 Board layout: dimensions..................................................6
Figure 1.2: SOM-4481 Top view....................................6
Figure 1.3:SOM-4481 Solder view.................................7

Chapter 2 Connector Assignments .................................10

2.1 Connector Locations .......................................................10
Figure 2.1:SOM-4486 Locating Connectors................ 10
2.2 Pin Assignments for X1/2/3/4 connectors....................... 10
2.3 Safety precautions........................................................... 11

Chapter 3 Software Configuration .................................14

3.1 Introduction..................................................................... 14
3.2 Utility CD disk................................................................ 14
3.3 VGA display software configuration ..............................14
Figure 3.1:BIOS VGA setup screen ............................. 15
3.4 Connections for two channel LVDS............................... 16
3.4.1 SOM-4486 X3............................................................... 16

Chapter 4 PCI Graphic Setup.........................................18

4.1 Introduction..................................................................... 18
4.1.1 Chipset........ .............................................................. .... 18
4.1.2 Display memory.................................................... ........18
4.1.3 Display types............................................................... ..18
4.1.4 Dual/Simultaneous Display .......................................... 18
Figure 4.1:Selecting Display Settings........................... 20
4.2 Installation of the PCI Graphic driver............................. 20
4.2.1 Installation for Windows 98/ME/2000/XP................... 20
4.3 Further Information.........................................................23

Chapter 5 Audio Setup.....................................................26

5.1 Introduction..................................................................... 26