BIOS Facts

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BIOS Facts
2013-09-07 21:05:39

The BIOS is a program stored in a read-only memory (ROM) chip that the CPU automatically loads and executes when it receives power. The BIOS program controls the startup process, identifies and configures hardware, and loads the operating system into memory.
Show Answers:

  1. RAM chip is called what?
  2. What is stored in a RAM chip called CMOS
    Configuration settings for the CPU, memory,  hard disk, and other hardware components.
  3. How do you clear the CMOS setting?
    You can clear the CMOS settings by temporarily removing the battery or by moving a special jumper on the motherboard.
  4. What does the battery do for CMOS
    The CMOS chip requires a battery to remember the settings when the computer is turned off.
  5. What key do you use to get to CMOS or BIOS?
    The easiest way to find out which key to    press is to read the screen as it boots or to consult the motherboard documentation.         The most common keys are Delete, Insert,    F1, and F2.
  6. What are the common reasons for editing the CMOS settings  are?
    • To change the boot device order.    
    • To enable or disable motherboard devices. 
    • To add a password to the setup program to    prevent unauthorized access. Note: If you set a BIOS password and then forget it, you will be unable to edit CMOS settings. Clear the CMOS settings to clear the password    (along with other settings).     
    • To configure processor or memory settings    (such as when the correct settings were    not automatically detected).
  7. What should you do before flashing the BIOS?
    Connect the computer to a UPS
  8. What could be detrimental while flashing the BIOS?
    Loss of power
  9. When are you most likely to require a system BIOS upgrade?
    When you are upgrading your processor.
  10. What should you do before flashing the BIOS?
    Write down system settings.
  11. When you boot the computer, it asks you for the current time and date and hangs. What is the most likely problem?
    The CMOS battery has failed
  12. When do you need to upgrade the system BIOS?
    Whenever the current BIOS does not support a function required by the operating system or the hardware.