Option
Description
This field configures the integrated USB controller. If Boot Support is enabled, the
system is allowed to boot any type of USB Mass Storage Devices (HDD, memory
key, floppy).
If USB port is enabled, device attached to this port is enabled and available for OS.
If USB port is disabled, the OS cannot see any device attached to this port.
The options are:
• Enable USB Boot Support (by default enable)
• Enable External USB Port (by default enable)
• Enable Thunderbolt Port (by default enable).
• Enable Thunderbolt Boot Support. This is an optional feature.
• Always Allows Dell Docks. This is an optional feature.
• Enables Thunderbolt (and PCIe behind TBT) Pre-boot
NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of
these settings.
USB PowerShare
This field configures the USB PowerShare feature behavior. This option allows you
to charge external devices using the stored system battery power through the USB
PowerShare port.
Audio
This field enables or disables the integrated audio controller. By default, the
Enable
Audio
option is selected. The options are:
• Enable Microphone (by default enable)
• Enable Internal Speaker (by default enable)
Keyboard
Illumination
This field lets you choose the operating mode of the keyboard illumination feature.
The keyboard brightness level can be set from 0% to 100%. The options are:
• Disabled
• Dim
• Bright (enabled by default)
Keyboard
Backlight with AC
The Keyboard Backlight with AC option does not affect the main keyboard
illumination feature. Keyboard Illumination will continue to support the various
illumination levels. This field has an effect when the backlight is enabled.
Keyboard
Backlight Timeout
with AC
The Keyboard Backlight Timeout dims out with AC option. The main keyboard
illumination feature is not affected. Keyboard Illumination will continue to support
the various illumination levels. This field has an effect when the backlight is
enabled.
Keyboard
Backlight Timeout
on Battery
The Keyboard Backlight Timeout dims out with Battery option. The main keyboard
illumination feature is not affected. Keyboard Illumination will continue to support
the various illumination levels. This field has an effect when the backlight is
enabled.
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