Dell Precision 3520 Owner's Manual page 63

Option Description
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SMART Reporting This field controls whether hard drive errors for integrated drives are reported during system startup. This
technology is part of the SMART (Self Monitoring Analysis and Reporting Technology) specification. This option is
disabled by default.
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USB Configuration
This is an optional feature.
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:
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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.
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 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.
SATA-0
SATA-2
SATA-4
M.2 PCI-e SSD-0
Enable SMART Reporting
Enable USB Boot Support (by default enable)
Enable External USB Port (by default enable)
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
NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of these settings.
Enable Microphone (by default enable)
Enable Internal Speaker (by default enable)
Disabled
Dim
Bright (enabled by default)
System setup options 63