Configuring BIOS - Basic Input Output System

To enter the CMOS Setup, you must press a certain key or combination of keys during the initial startup sequence. Most computer systems use "Esc," "Del," "F1," "F2," "Ctrl-Esc" or "Ctrl-Alt-Esc" to enter setup. There is usually a line of text at the bottom of the display that tells you "Press ___ to Enter Setup."

Once you have entered setup, you will see a set of text screens with a number of options. Some of these are standard, while others vary according to the BIOS manufacturer. Common options include:

  • System Time/Date - Set the system time and date
  • Boot Sequence - The order that BIOS will try to load the operating system
  • Plug and Play - A standard for auto-detecting connected devices; should be set to "Yes" if your computer and operating system both support it
  • Mouse/Keyboard - "Enable Num Lock," "Enable the Keyboard," "Auto-Detect Mouse"...
  • Drive Configuration - Configure hard drives, CD-ROM and floppy drives
  • Memory - Direct the BIOS to shadow to a specific memory address
  • Security - Set a password for accessing the computer
  • Power Management - Select whether to use power management, as well as set the amount of time for standby and suspend
  • Exit - Save your changes, discard your changes or restore default settings



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