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BIOS
BIOS stores hardware information about your computer and passes on the information to the operating system when the computer boots
up. You can make changes to the basic hardware settings stored in the BIOS using BIOS setup program.
You can use BIOS setup program to:
Set or change a user-selectable option such as the user password.
Determine the devices installed on your computer, such as amount of memory, type of hard drive, and so on.
Change the system conguration information after you add, change, or remove any hardware in your computer.
Topics:
Changing BIOS settings
Entering BIOS setup program
Resetting BIOS password
Changing the boot sequence
Changing BIOS settings
NOTE
: Incorrect settings in BIOS setup program may cause your computer to not boot, work incorrectly, or damage your
computer.
You may need to change settings such as date and time, boot devices and boot sequence, enable or disable PowerShare, and so on. To
change the settings, enter BIOS setup program, locate the setting that you want to change, and follow the instructions on the screen.
Entering BIOS setup program
1 Turn on or restart your computer.
2 Press F2 at the Dell logo to enter BIOS setup program.
NOTE
: If you wait too long and the operating system logo appears, continue to wait until you see the Windows desktop, then
restart your computer and try again.
Resetting BIOS password
BIOS passwords are used to add extra security to computers. You can congure your computer to prompt for a password when booting or
when entering BIOS setup program.
Use one of the following methods, depending on your computer type, to reset lost or forgotten BIOS passwords.
CAUTION
: Resetting the BIOS password involves clearing all data from the CMOS. If you have changed any BIOS settings, you
must make those changes again after resetting the password.
Remove the CMOS battery
CAUTION
: Read the safety instructions before working inside your computer.
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