Dell Precision 7520 - Page 71

Option Description
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 Boot support (by default enable)
• Enable Thunderbolt ports (by default enable)
• Always Allow dell docks
• Enable external USB ports
Others:
• Enable Thubderbolt Boot Support
• Enable Thunderbolt (and PCIE behind TBT) Pre-boot
• Security level-no security
• Security level-user conguration (selected by default)
• Security level-secure connect
• Security level- Display port only
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)..
Audio This eld 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 eld 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 (selected by default)
• Dim
• Bright
Keyboard Backlight
with AC
The Keyboard Backlight with AC option does not aect the main keyboard illumination feature. Keyboard
Illumination will continue to support the various illumination levels. This eld has an eect when the backlight is
enabled (selected by default).
Keyboard Backlight
Timeout on AC
The Keyboard Backlight Time-out dims out with AC option. The main keyboard illumination feature is not aected.
Keyboard Illumination will continue to support the various illumination levels. This eld has an eect when the
backlight is enabled.
• 5 sec
• 10 sec (selected by default)
• 15 sec
• 30 sec
• 1 min
• 5 min
• 15 min
System setup 71