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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
19
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