Supermicro P4SGA+ User Manual download pdf (Page 55)

Chapter 4: AwardBIOS

4-1

Chapter 4

AwardBIOS

4-1 Introduction

This chapter describes the AwardBIOS for the P4SGA/P4SGL/P4SGR/

P4SGE. The Award ROM BIOS is stored in a Flash chip and can be easily

upgraded using a floppy disk-based program.

Note: Due to periodic changes to the BIOS, some settings may have been

added or deleted and might not yet be recorded in this manual. Refer to the

Manual Download area of our web site for any changes to BIOS that are

not reflected in this manual.

System BIOS

The BIOS is the Basic Input Output System used in all IBM

PC, XT™, AT

and PS/2

compatible computers. The AwardBIOS Flash chip stores the

system parameters, such as amount of memory, type of disk drives and

video displays, etc. CMOS requires very little power. When the computer

is turned off, a back-up battery provides power to the BIOS Flash chip,

enabling it to retain the system parameters. Each time the computer is pow-

ered-on, the computer is then configured with the values stored in the BIOS

ROM by the system BIOS, which gains control when the computer is pow-

ered on.

How To Change the Configuration Data

The CMOS information that determines the system parameters may be

changed by entering the BIOS Setup utility. This Setup utility can be ac-

cessed by pressing <Del> at the appropriate time during system boot.

Starting the Setup Utility

Normally, the only visible POST (Power On Self Test) routine is the memory

test. As the memory is being tested, press the <Delete> key to enter the

main menu of the BIOS Setup utility. From the main menu, you can access

the other setup screens, such as the Chipset and Power menus. Section 4-

3 gives detailed descriptions of each parameter setting in the Setup utility.

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Supermicro P4SGA+ User Manual Page 55