Dell Precision 3520 Owner's Manual page 63

Option Description
● Enable Thunderbolt Ports (by default enable)
● Enable Thunderbolt Boot Support
● Always Allow Dell Docks (by default enable)
● Enable Thunderbolt (ans PCIe behind TBT) Pre-boot
● Security level — No Secuirty
● Security level — User Configuration(by default enable)
● Security level — Secure connect
● Security level — Display Port Only
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 This field lets you choose the operating mode of the keyboard illumination feature. The keyboard
Illumination brightness level can be set from 0% to 100%. The options are:
● Disabled
● Dim
● Bright (enabled by default)
Keyboard The Keyboard Backlight Timeout dims out with AC option. The main keyboard illumination feature is not
Backlight affected. Keyboard Illumination will continue to support the various illumination levels. This field has an
Timeout on AC effect when the backlight is enabled.
● 5 seconds
● 10 seconds (enabled by default)
● 15 seconds
● 30 seconds
● 1 minute
● 5 minutes
● 15 minutes
● Never
Keyboard The Keyboard Backlight Timeout dims out with Battery option. The main keyboard illumination feature is
Backlight not affected. Keyboard Illumination will continue to support the various illumination levels. This field has
Timeout on an effect when the backlight is enabled.
Battery
● 5 seconds
● 10 seconds (enabled by default)
● 15 seconds
● 30 seconds
● 1 minute
● 5 minutes
● 15 minutes
● Never
Keyboard The Keyboard Backlight with AC option does not affect the main keyboard illumination feature. Keyboard
Backlight with Illumination will continue to support the various illumination levels. This field has an effect when the
AC backlight is enabled.
Touchscreen This fields controls whether the touchscreen is enabled or diabled.
● Touchscreen (enabled by default)
Unobtrusive This option, when enabled, pressing Fn+F7 turns off all light and sound emissions in the system. To
Mode resume normal operation, press Fn+F7 again. This option is disabled by default.
Miscellaneous Allows you to enable or disable the following devices:
Devices
● Enable Camera —enabled by default
NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of these settings.
System setup options 63