Dell LATITUDE D400 - Manual (Page 57)

they are determined by the computer) appear as blue text.
The upper-right corner of the screen displays help information for the currently highlighted option; the lower-right corner
displays information about the computer. System setup key functions are listed across the bottom of the screen.
Commonly Used Options
Certain options require that you reboot the computer for new settings to take effect.
Changing the Boot Sequence
The boot sequence, or boot order, tells the computer where to look to find the software needed to start the operating system.
You can control the boot sequence and enable/disable devices using the Boot Order page of the system setup program.
NOTE: To change the boot sequence on a one-time-only basis, see " Performing a One-Time Boot ."
The Boot Order page displays a general list of the bootable devices that may be installed in your computer, including but not
limited to the following:
Diskette Drive
Internal HDD
CD/DVD/CD-RW drive
During the boot routine, the computer starts at the top of the list and scans each enabled device for the operating system
start-up files. When the computer finds the files, it stops searching and starts the operating system.
To control the boot devices, select (highlight) a device by pressing the or key, and then enable or disable the
device or change its order in the list.
To enable or disable a device, highlight the item and press . Enabled items appear as white and
display a small triangle to the left; disabled items appear blue or dimmed without a triangle.
To reorder a device in the list, highlight the device and then press or (not case-sensitive) to move the
highlighted device up or down.
Boot sequence changes take effect as soon as you save the changes and exit the system setup program.
Performing a One-Time Boot
You can set a one-time-only boot sequence without entering the system setup program. (You can also use this procedure to
boot the Dell Diagnostics on the diagnostics utility partition on your hard drive.)
1. Turn off the computer.
2. If the computer is connected to a docking device (docked), undock it. See the documentation that came with your
docking device for instructions.
3. Connect the computer to an electrical outlet.