Dell Precision 3520 Owner's Manual page 86

Option Description
● SATA-0
● SATA-2
● SATA-4
● M.2 PCI-e SSD-0
SMART This field controls whether hard drive errors for integrated drives are reported during system startup. This
Reporting technology is part of the SMART (Self Monitoring Analysis and Reporting Technology) specification. This
option is disabled by default.
● Enable SMART Reporting
USB
This is an optional feature.
Configuration
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:
● 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
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
86 BIOS setup
NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of these settings.