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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 operating system. When you start
the computer , the BIOS program will 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.
• PGUP: Previous Value; PGDN: Next Value.
• Press <F10> when you have completed the setup of BIOS parameters to save
these parameters and to exit the BIOS Setup menu.
• Press <+>/<–> 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 <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>.