User`s manual
www.dfi .comChapter 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 DIM Module ...........................................................................13
Connectors ...................................................................................................14
CPU Fan Connector .....................................................................................14
COM Express Connectors ............................................................................15
COM Express connector Signal Discription ....................................................16
Standby Power LED ...................................................................................26
Cooling Option ............................................................................................ 26
Installing HR908-B onto a Carrier Board ............................................ 27
Chapter 4 - BIOS Setup ............................................................... 29
Overview ..................................................................................................... 29
AMI BIOS Setup Utility .............................................................................30
Main ..........................................................................................................30
Advanced ................................................................................................... 30
Chipset ......................................................................................................35
Boot...........................................................................................................41
Security ......................................................................................................42
Save & Exit ................................................................................................42
Updating the BIOS ....................................................................................... 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