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Introducing BIOS
The BIOS is a program located on a Flash Memory on the motherboard. This program is a
bridge between motherboard and operating system. When you start the computer, the BIOS
program gain control. The BIOS first operates an auto-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
Chapter 3
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