Jaton PowerPro VX, Руководство пользователя

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System BIOS
15
Chapter 3 System BIOS
The System BIOS is a program located on a Read -Only Memory (ROM) or Flash
ROM chip on the main board. This program will not be lost when you turn the computer
off. It is the primary channel for the hardware circuit to communicate with the operating
system. Its main function is to manage the setup of the main board and parameters of
interface cards. It setup simple parameters such as time, date, hard disk drive, as well as
more complex parameters such as hardware synchronization, device operating mode,
and also include special features such as CPU
SOFT MENU
™
to setup CPU voltage
and speed and store them in CMOS memory. The system BIOS configuration is one of
the key factor for your computer system stability and performance.
When the computer powers up, the System BIOS program takes the control of the
computer system. The BIOS first run an auto-diagnostic routine for all the necessary
hardware, configures the parameters of the hardware synchronization, and detects all
the hardware. Only when these tasks are completed does it give up control of the
computer to the program of the next level, which is the Operating System.
After the BIOS has achieved the auto-diagnostic and auto-detection operations, it
will display the following message:
PRESS CTRL-ALT-ESC OR DEL KEY TO ENTER SETUP
Three to five seconds after the message is displayed, if you press the Del key, or if
you press simultaneously the Ctrl Alt Esc keys, you will access the BIOS Setup

Change the parameters in BIOS with caution
The parameters inside the BIOS are used to setup the hardware synchronization
or the device operating mode. If the parameters are not setup correctly, the
computer may perform poorly and sometimes may not boot up at all. We
recommend that you do not change the parameters inside the BIOS unless you
are familiar with them. If you are not able to boot your computer anymore,
please refer to the section
“
Erase CMOS data
”
in Chapter 2.