Datasheet

Chapter 7: BIOS

7-1

Chapter 7

BIOS

7-1 Introduction

This chapter describes the Phoenix BIOS™ Setup utility for the X6DHR-3G2. The

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

ﬂ 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 Supermicro's

web site: <http://www.supermicro.com> for any changes to BIOS that may not be

reﬂ ected 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 Phoenix BIOS ﬂ ash chip stores the system

parameters, such as type of disk drives, video displays, etc. in the CMOS. The

CMOS memory requires very little electrical power. When the computer is turned

off, a back-up battery provides power to the BIOS ﬂ ash chip, enabling it to retain

system parameters. Whenever the computer is powered-on, the computer is con-

ﬁ gured with the values stored in the BIOS ROM by the system BIOS, which gains

control at boot-up.

How To Change the Conﬁ 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 7-3, detailed de-

scriptions are given for each parameter setting in the Setup utility.

Note: fan speed is controlled by the “Fan Speed Control Mode” setting in BIOS (see

page 7-15). The recommended setting for the 6014H-32 is “3-pin (Server)”