Dell Latitude 5289 Owner's Manual page 37

Option Description
The options are:
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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. This option is disabled by default
Audio This field enables or disables the integrated audio controller. By default, the Enable Audio option is selected. The
options are:
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Keyboard This field lets you choose the operating mode of the keyboard illumination feature. The keyboard brightness level
Illumination can be set from 0% to 100%. The options are:
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Keyboard Backlight The Keyboard Backlight Timeout dims out with the Battery option. The main keyboard illumination feature is not
Timeout on Battery affected. Keyboard Illumination will continue to support the various illumination levels. This field has an effect when
the backlight is enabled. The options are:
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Keyboard Backlight The Keyboard Backlight with AC option does not affect the main keyboard illumination feature. Keyboard
with AC Illumination will continue to support the various illumination levels. This field has an effect when the backlight is
enabled. This option is enabled by default.
Keyboard Backlight The Keyboard Backlight Timeout dims out with AC option. The main keyboard illumination feature is not affected.
Timeout on AC Keyboard Illumination will continue to support the various illumination levels. This field has an effect when the
backlight is enabled. The options are:
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Enable Boot Support—enabled by default
Enable the Thunderbolt ports
Always Allow dell docks—enabled by default
Enable External USB Port—enabled by default
Enable Thunderbolt Boot Support
Enable Thunderbolt (and PCIE behind TBT) Preboot
Security level-No security
Security level-User configuration
Security level-Secure connect
Security level- Display port only
NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of these settings.
Enable Microphone—enabled by default
Enable Internal Speaker—enabled by default
Disabled
Dim (50%)
Bright—enabled by default
5 sec
10 sec—enabled by default
15 sec
30 sec
1 min
5 min
15 min
Never
5 sec
System setup 37