Supermicro X7SBA User Manual download pdf (Page 53)

Chapter 4: BIOS

4-1

Chapter 4

BIOS

4-1 Introduction

This chapter describes the Phoenix BIOS™ Setup utility for the X7SBA. The

Phoenix ROM BIOS is stored in a ash chip and can be easily upgraded using a

oppy 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. Please refer to the Manual

Download area of the Supermicro web site <http://www.supermicro.com> for any

changes to the BIOS that may not be reected in this manual.

System BIOS

BIOS is the Basic Input Output System used in all IBM

PC, XT™, AT

, and PS/2

compatible computers. The Phoenix BIOS stores the system parameters, types of

disk drives, video displays, etc. in the CMOS. The CMOS memory requires very

little electrical power. When the computer is turned off, a backup battery provides

power to the CMOS logic, enabling it to retain system parameters. Each time the

computer is powered on the computer is congured with the values stored in the

CMOS logic by the system BIOS, which gains control at boot up.

HowToChangetheCongurationData

The CMOS information that determines the system parameters may be changed

by entering the BIOS Setup utility. This Setup utility can be accessed by pressing

the <Delete> key at the appropriate time during system boot. (See below.)

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 Security and Power menus. Beginning with Section 4-3,

detailed descriptions are given for each parameter setting in the Setup utility.

Warning: Do not shut down or reset the system while updating BIOS to

prevent possible boot failure.

Note: The SPI BIOS chip used in the X7SBA is not removable. To replace a dam-

aged SPI BIOS chip, please send the motherboard to Supermicro for repair.

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Supermicro X7SBA User Manual Page 53