Chapter 3

Chapter 3:

BIOS setup

3.1Knowing BIOS

BIOS (Basic Input and Output System) stores system hardware settings such as storage device configuration, overclocking settings, advanced power management, and boot device configuration that are needed for system startup in the motherboard CMOS. In normal circumstances, the default BIOS settings apply to most conditions to ensure optimum performance. We recommend that you not change the default BIOS settings except in the following circumstances:

An error message appears on the screen during the system bootup and requests you to run the BIOS Setup.

You have installed a new system component that requires further BIOS settings or update.

Inappropriate settings of the BIOS may result to instability or failure to boot. We strongly recommend that you change the BIOS settings only with the help of a trained service personnel.

3.2Updating BIOS

The ASUS website publishes the latest BIOS versions to provide enhancements on system stability, compatibility, or performance. However, BIOS updating is potentially risky. If there is no problem using the current version of BIOS, DO NOT manually update the BIOS.

Inappropriate BIOS updating may result in the system’s failure to boot. Carefully follow the instructions of this chapter to update your BIOS if necessary.

Visit the ASUS website (www.asus.com) to download the latest BIOS file for this motherboard.

The following utilities allow you to manage and update the motherboard BIOS setup program.

1.ASUS Update: Updates the BIOS in Windows® environment.

2.ASUS EZ Flash 2: Updates the BIOS using a USB flash disk.

3.ASUS CrashFree BIOS 3 utility: Restores the BIOS using the motherboard support

DVD or other removable devices when the BIOS file fails or gets corrupted.

Refer to the corresponding sections for details on these utilities.

Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility.

3.2.1ASUS Update utility

The ASUS Update is a utility that allows you to manage, save, and update the motherboard

BIOS in Windows® environment. The ASUS Update utility allows you to:

Save the current BIOS file

Download the latest BIOS file from the Internet

Update the BIOS from an updated BIOS file

Update the BIOS directly from the Internet

View the BIOS version information

This utility is available in the support DVD that comes with the motherboard package.

ASUS Update requires an Internet connection either through a network or an Internet

Service Provider (ISP).

ASUS P7P55D

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