Dell XPS 18 (1820, Early 2014) - Manual (Page 25)

Using Your Computer │ 25
Hotkeys
You can access various menus on your computer using the following
hotkeys:
Menu Key combination
Boot menu Press and release the volume-up and
the power button.
BIOS/System setup Press and release the volume-down
and the power button.
ePSA menu Press and hold down the volume up
and power buttons for 2 seconds then
release the volume-up and the power
button.
LCD BIST menu Press and hold down the volume down
and power buttons for 2 seconds then
release the volume-down and the
power button.
Menu descriptions:
∞ Boot menu — A special menu that allows you to run ePSA
diagnostics or boot from a device other than the internal hard
drive.
∞ BIOS / System setup menu — Allows you to access the BIOS
setup mode to review more advanced system information and
configure system settings.
∞ ePSA menu — Starts the Enhanced Pre-Boot System Assessment.
It allows you to access detailed system information and perform
diagnostics on the computer hardware.
∞ LCD BIST menu — Launches the Built-in Self Test (BIST) that
allows you to diagnose a display-related problem.
NOTE: For more information on the tools available to keep your
computer running properly, see
dell.com/support .