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Chapter 5: BIOS Setup
5.1 About the BIOS
The BIOS is the basic input/output system, the firmware on the motherboard that
enables your hardware to interface with your software. The BIOS determines what
a computer can do without accessing programs from a disk. The BIOS contains all
the code required to control the keyboard, display screen, disk drives, serial
communications, and a number of miscellaneous functions. This chapter
describes the various BIOS settings that can be used to configure your system.
The BIOS section of this manual is subject to change without notice and is
provided for reference purposes only. The settings and configurations of the BIOS
are current at the time of print and are subject to change, and therefore may not
match exactly what is displayed on screen.
This section describes the BIOS setup program. The setup program lets you
modify basic configuration settings. The settings are then stored in a dedicated,
battery-backed memory (called NVRAM) that retains the information even when
the power is turned off.
To start the BIOS setup utility:
1. Turn on or reboot your system.
2. Press <Del> during POST (<Tab> on remote console) to start the BIOS setup
utility.
5.2 Setup Basics
The table below shows how to navigate in the setup program using the keyboard.
Key Function
 
arrow keys Select Screen

or

arrow keys
Select Item
Enter Select
+/- Change Opt.
F1 General help window
F2 Previous Values
F3 Optimized Defaults
F4 Save & Exit
<ESC> Exit current menu