Supermicro 2020A-8R, User Manual

Page: 69 / 102

Chapter 7: BIOS
7-1
Chapter 7
BIOS
7-1 Introduction
This chapter describes the AMIBIOS™ Setup utility for the H8DA8. 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 the Manual
Download area of our web site for any changes to BIOS that may not be refl ected
in this manual.
Starting the Setup Utility
To enter the BIOS Setup Utility, hit the <Delete> key while the system is booting-up.
(In most cases, the <Delete> key is used to invoke the BIOS setup screen. There are
a few cases when other keys are used, such as <F1>, <F2>, etc.) Each main BIOS
menu option is described in this manual.
The Main BIOS screen has two main frames. The left frame displays all the options
that can be confi gured. “Grayed-out” options cannot be confi gured. The right frame
displays the key legend. Above the key legend is an area reserved for a text mes-
sage. When an option is selected in the left frame, it is highlighted in white. Often a
text message will accompany it. (Note that BIOS has default text messages built in.
We retain the option to include, omit, or change any of these text messages.) Set-
tings printed in Bold are the default values.
A "
"
indicates a submenu. Highlighting such an item and pressing the <Enter>
key will open the list of settings within that submenu.
The BIOS setup utility uses a key-based navigation system called hot keys. Most of
these hot keys (<F1>, <F10>, <Enter>, <ESC>, <Arrow> keys, etc.) can be used at
any time during the setup navigation process.
Note: fan speed is controlled by the “Auto Fan Control” setting in BIOS. The recom-
mended setting for the 2020A-8R is “3-pin (Server)” If you load the BIOS default
settings this setting may change. Therefore, when loading BIOS defaults you should
reenter BIOS setup and change this setting back to “3-pin (Server)”, then save and
exit (see page 7-9).