DFI HR908-B User Manual
Page 3

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Chapter 1 Introduction
3
Table of Contents
Copyright
.............................................................................................................2
Trademarks
........................................................................................................2
FCC and DOC Statement on Class B
.....................................................2
About this Manual
..........................................................................................4
Warranty
............................................................................................................4
Static Electricity Precautions
......................................................................4
Safety Measures
..............................................................................................4
About the Package
.........................................................................................5
Chapter 1 - Introduction
.............................................................................6
Specifications
................................................................................................6
Features
........................................................................................................7
Chapter 2 - Concept
....................................................................... 8
COM Express Module Standards
..............................................................8
Specification Comparison Table
...............................................................9
Chapter 3 - Hardware Installation
.............................................. 10
Board Layout
............................................................................................... 10
Block Diagram
............................................................................................. 10
Mechanical Diagram
.................................................................................. 11
System Memory
.......................................................................................... 12
Installing the DIMM Module ........................................................................ 13
Connectors
................................................................................................... 14
CPU Fan Connector ..................................................................................... 14
COM Express Connectors ............................................................................ 15
COM Express connector Signal Discription .................................................... 16
Standby Power LED
................................................................................... 25
Cooling Option
............................................................................................ 25
Installing HR908-B onto a Carrier Board
............................................ 26
Chapter 4 - BIOS Setup
............................................................... 28
Overview
..................................................................................................... 28
AMI BIOS Setup Utility
............................................................................. 29
Main .......................................................................................................... 29
Advanced ................................................................................................... 29
Chipset ...................................................................................................... 34
Boot........................................................................................................... 40
Security ...................................................................................................... 41
Save & Exit ................................................................................................ 41
Updating the BIOS
.................................................................................... 42
Notice: BIOS SPI ROM
............................................................................. 43
Chapter 5 - Supported Software
.......................................................... 44
Appendix A - nLite and AHCI Installation Guide
........................... 57
nLite
............................................................................................................... 57
AHCI
.............................................................................................................. 61
Appendix B - Watchdog Sample Code
................................................ 63
Appendix C - System Error Message
................................................... 64
Appendix D - Troubleshooting
................................................................ 65