Tyan S5393G2NR User Manual

Page of 74
31 
http://www.tyan.com 
 
 
Chapter 3: BIOS Setup
 
 
 
3.1 - 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 <F2> during POST to start the BIOS setup utility. 
 
3.1.1 Setup Basics
 
 
The table below shows how to navigate in the setup program using the keyboard. 
Key 
Function 
Tab 
Moves from one selection to the next 
Left/Right Arrow Keys 
Changes from one menu to the next 
Up/Down Arrow Keys 
Moves between selections 
Enter 
Opens highlighted section 
PgUp/PgDn Keys 
Changes settings. 
 
3.1.2 Getting Help 
 
Pressing [F1] will display a small help window that describes the appropriate  
keys to use and the possible selections for the highlighted item. To exit the Help Window, 
press [ESC] or the [F1] key again.