Chapter 6: Bios Setup; Boot Menu; Bios Overview - Dell Precision 3540 Service Manual

CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program.
Certain changes can make your computer work incorrectly.
NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed.
NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen
information for future reference.
Use the BIOS Setup program for the following purposes:
● Get information about the hardware installed in your computer, such as the amount of RAM and the size of the hard drive.
● Change the system configuration information.
● Set or change a user-selectable option, such as the user password, type of hard drive installed, and enabling or disabling
base devices.
Topics:
•

Boot menu

•

BIOS overview

• Entering BIOS setup program
• Navigation keys
• One time boot menu
• System setup options
• Updating the BIOS
• System and setup password
• Clearing CMOS settings
• Clearing BIOS (System Setup) and System passwords
Boot menu
Press <F12> when the Dell logo appears to initiate a one-time boot menu with a list of the valid boot devices for the system.
Diagnostics and BIOS Setup options are also included in this menu. The devices listed on the boot menu depend on the bootable
devices in the system. This menu is useful when you are attempting to boot to a particular device or to bring up the diagnostics
for the system. Using the boot menu does not make any changes to the boot order stored in the BIOS.
The options are:
● UEFI Boot:
○ Windows Boot Manager
● Other Options:
○ BIOS Setup
○ BIOS Flash Update
○ Diagnostics
○ Change Boot Mode Settings
BIOS overview
The BIOS manages data flow between the computer's operating system and attached devices such as hard disk, video adapter,
keyboard, mouse, and printer.
116 BIOS setup
6
BIOS setup