Nvidia N61V Manuel D’Utilisation

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 nVIDIA N61P/N61S/N61V                                                                             User's /Manual

BIOS stands for Basic Input and Output System. It was once called ROM BIOS when it was 

stored in a Read-Only Memory (ROM) chip. Now manufacturers would like to store BIOS in 

EEPROM which means Electrically Erasable Programmable Memory. BIOS used in this series 

of mainboard is stored in EEPROM, and is the first program to run when you turn on your 

computer.

BIOS performs the following functions:

1. Initializing and testing hardware in your computer (a process called "POST", for Power On        

    Self Test).

2. Loading and running your operating system.

3. Helping your operating system and application programs manage your PC hardware by      

    means of a set of routines called BIOS Run-Time Service.

    BIOS Setup is an interactive BIOS program that you need to run when:

    1. Changing the hardware of your system. (For example: installing a new Hard Disk etc.)

    2. Modifying the behavior of your computer. (For example: changing the system time or date,  

        or turning special features on or off etc.)

    3. Enhancing your computer's behavior. (For example: speeding up performance by turning 

        on shadowing or cache)

    First access BIOS setup menu by pressing <DEL> key after “POST” is complete (before OS is     

    loaded). BIOS will then display the following message:
                                                      

    CMOS is the memory maintained by a battery. CMOS is used to store the BIOS settings you 

    have selected in BIOS Setup. CMOS also maintains the internal clock. Every time you turn 

    on your computer, the BIOS looks into CMOS for the settings you have selected and 

    configures your computer accordingly. If the battery runs out of power, the CMOS data will 

    be lost and POST will issue a “CMOS invalid” or “CMOS checksum invalid” message. If this 

    happens, you have to replace the battery and check and configure the BIOS Setup for the 

    new start.

    POST is an acronym for Power On Self Test. This program will test all things the BIOS does 

    before the operating system is started. Each of POST routines is assigned a POST code, a 

    unique number which is sent to I/O port 080h before the routine is executed.

 

  DEL

: SETUP