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Chapter 3
Introducing BIOS
The BIOS is a program located on a Flash Memory on the motherboard. This program is a bridge
between motherboard and the operating system. When you start the computer, the BIOS program
gain control. The BIOS first operates a self-diagnostic test called POST (Power On Self Test) for
all the necessary hardware, it detects the entire hardware device and configures the parameters of
the hardware synchronization. Only when these tasks are completed done it gives up control of
the computer to operating system (OS). Since the BIOS is the only channel for hardware and
software to communicate, it is the key factor for system stability, and in ensuring that your system
performance as its best.
In the BIOS Setup main menu of Figure 3-1, you can see several options. We will explain these
options step by step in the following pages of this chapter, but let us first see a short description of
the function keys you may use here:
•
Press <Esc> to quit the BIOS Setup.
•
Press
↑ ↓ ← →
(up, down, left, right) to choose, in the main menu, the option you want to
confirm or to modify.
•
Press <F10> when you have completed the setup of BIOS parameters to save these
parameters and to exit the BIOS Setup menu.
•
Press Page Up/Page Down or +/
–
keys when you want to modify the BIOS parameters for the
active option.
3-1
Entering
Setup
Power on the computer and by pressing <Del> immediately allows you to enter Setup.
If the message disappears before your respond and you still wish to enter Setup, restart the system
to try again by turning it OFF then ON or pressing the “RESET” button on the system case. You
may also restart by simultaneously pressing <Ctrl>, <Alt> and <Delete> keys. If you do not press
the keys at the correct time and the system does not boot, an error message will be displayed and
you will again be asked to
Press <F1> to continue, <Ctrl-Alt-Esc> or <Del> to enter Setup
3-2 Getting Help
Main Menu
The on-line description of the highlighted setup function is displayed at the bottom of the
screen.
Status Page Setup Menu/Option Page Setup Menu
Press F1 to pop up 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>.
3-3 The Main Menu
