Dell Latitude 5420 Rugged - Page 26

Option Description
USB Conguration
Allows you to enable or disable the internal/integrated USB
conguration.
The options are:
• Enable USB Boot Support
• Enable External USB Ports
• Disable Docking Station Devices except video (Default :
Unchecked)
Rest all the options are set by default.
NOTE: USB keyboard and mouse always work in the BIOS
setup irrespective of these settings.
USB PowerShare
This eld congures the USB PowerShare feature behavior. This
option allows you to charge external devices using the stored
system battery power through the USB PowerShare port (disabled
by default).
• Enable USB PowerShare
Audio
Allows you to enable or disable the integrated audio controller. By
default, the Enable Audio option is selected.
The options are:
• Enable Microphone
• Enable Internal Speaker
This option is set by default.
Keyboard Illumination
This option lets you choose the operating mode of the keyboard
illumination feature
The options are:
• Disabled
• 25%
• 50%
• 75%
• 100%
Keyboard Backlight Timeout on AC
Allows to dene the timeout value for the keyboard backlight when
an AC adapter is plugged in the system. The Keyboard Backlight
tiemout value is only in eect when the backlight is enabled.
• 5 seconds
• 10 seconds—Default
• 15 seconds
• 30 seconds
• 1 minute
• 5 minutes
• 15 minutes
• Never
Keyboard Backlight Timeout on Battery
Allows to dene the timeout value for the keyboard backlight when
the system is running only on battery power. The Keyboard
26 System setup