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4. BIOS Setup
This chapter describes the BIOS setup.
4.1 Overview
BIOS are a program located on a Flash memory chip of a circuit board. It is used to initialize
and set up the I/O peripherals and interface cards of the system, which includes time, date, hard
disk drive, the ISA bus and connected devices such as the video display, diskette drive, and the
keyboard. This program will not be lost when you turn off the system.
The BIOS provides a menu-driven interface to the console subsystem. The console subsystem
contains special software, called firmware that interacts directly with the hardware components and
facilitates interaction between the system hardware and the operating system.
The BIOS default values ensure that the system will function at its normal capability. In the
worst situation the user may have corrupted the original settings set by the manufacturer.
All the changes you make will be saved in the system RAM and will not be lost after
power-off.
When you start the system, the BIOS will perform a self-diagnostics test called Power On Self
Test (POST) for all the attached devices, accessories, and the system. Press the [Del] key to enter
the BIOS Setup program, and then the main menu will show on the screen.
Note: Change the parameters when you fully understand their functions and subsequences.