Reference Guide

BIOS Settings Name Description Supported
Operating
System(s)
• Enable — UEFI networking protocols are available permitting
preOS image of the network, including PXE.
• Disable — UEFI networking protocols are not available in the
preOS environment and network boot by PXE is disabled.
This setting will improve boot times.
UEFI Capsule
Enables or disables BIOS updates via UEFI capsule update
packages.
Possible values are:
• Enable
• Disable
NOTE: Disabling this option blocks the BIOS updates
from services such as Microsoft Windows Update and
Linux Vender Firmware Service (LVFS).
Microsoft Windows,
Linux
Unobtrusive Mode
Enables or disables the <Fn><B> key combination, which
controls the light emissions from the system.
Possible values are:
• Disable — Disables the <fn><B> key combination
• Enable — Enables the <fn><B> key combination
Microsoft Windows,
Linux
USB
Enables, Disables, or sets the system's USB port to No Boot (if
supported).
Possible values are:
• Disable
• Enable
• No boot
Microsoft Windows
USB 3.0
Enable or Disable USB 3.0
Possible values are:
• Disable
• Enable
Microsoft Windows,
Linux
USB Emulation
Enables or Disables USB keyboard and mouse support for
Operating systems that do not natively support USB keyboards
and mice.
Possible values are:
• Enable
• Disable
Microsoft Windows,
Linux
USB Flash Drive Emulation
Possible values are:
• Auto
• Floppy
• HD only
Microsoft Windows
USB Port 0
Enables or Disables USB Port 00.
Possible values are:
• Disable
• Enable
Microsoft Windows,
Linux
USB Port 1
Enables or Disables USB Port 01.
Microsoft Windows,
Linux
BIOS settings supported in Dell Command | Monitor 10.2.1 293