English Product Guide

Desktop Board Features

Legacy I/O

The board’s Legacy I/O Controller provides the following legacy features:

• One serial port header

• Serial IRQ interface compatible with serialized IRQ support for Conventional PCI

bus systems

• Intelligent power management, including a programmable wake-up event interface

• Conventional PCI bus power management support

The BIOS Setup program provides configuration options for the Legacy I/O controller.

BIOS

The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, and the

PCI/PCI Express and SATA auto-configuration utilities. The BIOS is stored in the Serial

Peripheral Interface (SPI) Flash memory device.

The BIOS can be updated by following the instructions in Chapter 3 starting on

page 67.

SATA Auto Configuration

If you install a SATA device (such as a hard disk drive) in your computer, the auto-

configuration utility in the BIOS automatically detects and configures the device for

your computer. You do not need to run the BIOS Setup program after installing a

SATA device. You can override the auto-configuration options by specifying manual

configuration in the BIOS Setup program.

PCI*/PCI Express Auto Configuration

If you install a Conventional PCI or PCI Express add-in card in your computer, the

PCI/PCI Express auto-configuration utility in the BIOS automatically detects and

configures the resources (IRQs, DMA channels, and I/O space) for that add-in card.

You do not need to run the BIOS Setup program after you install a Conventional PCI or

PCI Express add-in card.

BIOS Security Passwords

The BIOS includes security features that restrict whether the BIOS Setup program can

be accessed and who can boot the computer. A supervisor password and a user

password can be set for the BIOS Setup and for booting the computer, with the

following restrictions:

• The supervisor password gives unrestricted access to view and change all Setup

options. If only the supervisor password is set, pressing <Enter> at the password

prompt of Setup gives the user restricted access to Setup.