
Copyright © 2011 NEXCOM International Co., Ltd. All Rights Reserved.
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Contents
DNA 1120/1120A User Manual
Internal Connectors ..........................................................................15
SATAII Port (J1) ...............................................................................15
SATAII Port (J3) ...............................................................................15
SATA Power Connector ..................................................................16
SATA DOM Power Connector .........................................................16
Digital I/O Connector .....................................................................17
COM2 Connector (RS232) ..............................................................17
CompactFlash ................................................................................18
USB Connector ..............................................................................19
Parallel Connector ..........................................................................19
PS/2 Keyboard/Mouse Connector ...................................................20
GAL Programming Connector ........................................................20
System Fan Connector ...................................................................21
PCI Slot ..........................................................................................21
Mini PCI Slot ..................................................................................23
Chapter 3: System Setup
Removing the Chassis Cover ................................................................25
Installing a DIMM ..................................................................................26
Installing a CompactFlash Card .............................................................28
Installing a SATA Hard Drive ..................................................................30
Installing a PCI Card ..............................................................................35
Installing a Mini PCI Card ......................................................................38
Installing the System into a Rack Cabinet ..............................................40
Rackmount Instructions ....................................................................40
Chapter 4: BIOS Setup
About BIOS Setup .................................................................................42
When to Configure the BIOS .................................................................42
Default Configuration ...........................................................................43
Entering Setup ......................................................................................43
Legends ................................................................................................43
BIOS Setup Utility ..................................................................................44
Main ..................................................................................................44
Advanced ...........................................................................................45
PCIPnP ................................................................................................57
Boot ...................................................................................................58
Security ..............................................................................................61
Chipset ...............................................................................................62
Exit .....................................................................................................65
Appendix A: Watchdog Timer
Watchdog Timer Setting .......................................................................66
CRF6 (Default 0x00) ..............................................................................66
Watch Dog Sample Code ......................................................................67
Appendix B: Bypass Specifications
BTCR - Bypass Timer Configuration Register = 0XF2 ..............................68
BCSR - Bypass Control Status Register = 0XF3 .......................................68
Bypass Control Register Bit Definitions ..................................................69
Bypass Timer Configuration Register ...................................................69
Bypass Control Status Register (Segment 1 only) .................................70
Bypass Mode Table .............................................................................70