JETWAY 845CAR1A User Manual

Contents

JETWAY 845CAR1A User Manual Manual pdf 24 page image

21Chapter 3Introducing BIOSThe BIOS is a program located on a Flash Memory on the motherboard. This program is abridge between motherboard and operating system. When you start the computer, the BIOSprogram gain control. The BIOS first operates an auto-diagnostic test called POST (poweron self test) for all the necessary hardware, it detects the entire hardware device andconfigures the parameters of the hardware synchronization. Only when these tasks arecompleted done it gives up control of the computer to operating system (OS). Since theBIOS is the only channel for hardware and software to communicate, it is the key factor forsystem 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 explainthese options step by step in the following pages of this chapter, but let us first see a shortdescription of the function keys you may use here:• Press to quit the BIOS Setup.• Press ↑ ↓ ← → (up, down, left, right) to choose, in the main menu, the option youwant to confirm or to modify.• Press when you have completed the setup of BIOS parameters to save theseparameters and to exit the BIOS Setup menu.• Press Page Up/Page Down or +/– keys when you want to modify the BIOSparameters for the active option.3-1 Entering SetupPower on the computer and by pressing ~~immediately allows you to enter Setup.~~If the message disappears before your respond and you still wish to enter Setup, restart thesystem to try again by turning it OFF then ON or pressing the “RESET” button on thesystem case. You may also restart by simultaneously pressing , and keys. If you do not press the keys at the correct time and the system does notboot, an error message will be displayed and you will again be asked toPress to continue, or ~~to enter Setup~~