AXIOMTEK PICO840, User Manual

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3.3 AX93283 Board Layout ..................................................................... 24
3.4 AX93283 Jumper Settings ................................................................ 25
3.4.1 COM1 Data/Power Selection (JP1 and JP2) ............................................ 25
3.5 AX93283 Connectors, Switches and LED ....................................... 26
3.5.1 System Reset Switch (CN1) ...................................................................... 26
3.5.2 Audio Jack (CN2) ...................................................................................... 26
3.5.3 COM1 Connector (CN3) ............................................................................ 27
3.5.4 COM2 Connector (CN4) ............................................................................ 27
3.5.5 System Power Switch (CN5) ..................................................................... 27
3.5.6 Board to Board Connectors (CN9 and CN10) ........................................... 28
3.5.7 USB Connectors (USB1 and USB2) ......................................................... 29
3.5.8 Power and HDD LED Indicator (D1) ......................................................... 29
Chapter 4 Hardware Description ........................... 31
4.1 Microprocessors ............................................................................... 31
4.2 BIOS ................................................................................................... 31
4.3 System Memory ................................................................................. 31
4.4 I/O Port Address Map ........................................................................ 32
4.5 Interrupt Controller (IRQ) Map ......................................................... 33
4.6 Memory Map ...................................................................................... 36
Chapter 5 AMI BIOS Setup Utility .......................... 37
5.1 Starting ............................................................................................... 37
5.2 Navigation Keys ................................................................................ 37
5.3 Main Menu .......................................................................................... 39
5.4 Advanced Menu ................................................................................. 40
5.5 Chipset Menu ..................................................................................... 52
5.6 Security Menu .................................................................................... 55
5.7 Boot Menu .......................................................................................... 56
5.8 Save & Exit Menu .............................................................................. 57
Appendix A Watchdog Timer ................................... 59
A.1 About Watchdog Timer ..................................................................... 59
A.2 How to Use Watchdog Timer ............................................................ 59
A.3 Sample Program ................................................................................ 60
Appendix B BIOS Flash Utility ................................ 63