BIOS setup program Asus prime Asus M3A78-EH

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Chapter 2: BIOS setup

2.2 

BIOS setup program

This motherboard supports a programmable Serial Peripheral Interface (SPI) chip 

that you can update using the provided utility described in section “2.1 Managing 

and updating your BIOS.”
Use the BIOS Setup program when you are installing a motherboard, reconfiguring 

your system, or prompted to“Run Setup”. This section explains how to configure 

your system using this utility.
Even if you are not prompted to use the Setup program, you can change the 

configuration of your computer in the future. For example, you can enable the 

security password feature or change the power management settings. This 

requires you to reconfigure your system using the BIOS Setup program so that the 

computer can recognize these changes and record them in the CMOS RAM of the 

SPI chip.
The SPI chip on the motherboard stores the Setup utility. When you start up the 

computer, the system provides you with the opportunity to run this program. Press 

<Del> during the Power-On Self-Test (POST) to enter the Setup utility; otherwise, 

POST continues with its test routines. 
If you wish to enter Setup after POST, reboot the system by doing any of the 

following procedures:

• Restart using the OS standard shut-down procedure.

• Press <Ctrl>+<Alt>+<Del> simultaneously. 

• Press the reset button on the system chassis. 

• Press the power button to turn the system off then back on. 

•  The default BIOS settings for this motherboard apply for most conditions 

to ensure optimum performance. If the system becomes unstable after 

changing any BIOS settings, load the default settings to ensure system 

compatibility and stability. Select the Load Default Settings item under the 

Exit Menu. See section “2.8 Exit Menu.”

•  The BIOS setup screens shown in this section are for reference purposes 

only, and may not exactly match what you see on your screen. 

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

this motherboard.

Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys 

to force reset from a running operating system can cause damage to 

your data or system. We recommend to always shut-down the system 

properly from the operating system.

The Setup program is designed to make it as easy to use as possible. Being a 

menu-driven program, it lets you scroll through the various sub-menus and make 

your selections from the available options using the navigation keys.