Option

Description

 

 

 

If USB port is disabled, the OS cannot see any device attached to this

 

port.

 

Enable Boot Support

 

• Enable External USB Port

 

Enable USB3.0 Controller

 

 

NOTE: USB keyboard and mouse always work in the BIOS setup

 

 

irrespective of these settings.

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.

Keyboard Illumination

This field lets you choose the operating mode of the keyboard

 

illumination feature.

 

The keyboard brightness level can be set from 0% to 100%

 

Disabled

 

Dim

 

Bright

 

This option is disabled by default.

Keyboard Backlight with AC

The Keyboard Backlight with AC option does not affect the main

 

keyboard illumination feature. Keyboard Illumination will continue to

 

support the various illumination levels. This field has an effect when the

 

backlight is enabled.

Unobtrusive Mode

This option, when enabled, pressing Fn+F7 turns off all light and sound

 

emissions in the system. To resume normal operation, press Fn+F7

 

again. This option is disabled by default.

Miscellaneous Devices

Allows you to enable or disable the following devices:

 

Enable Microphone

 

Enable Camera

 

• Enable Hard Drive Free Fall Protection

 

Enable Media Card

 

Disable Media Card

NOTE: All devices are enabled by default.

You can also enable or disable Media Card.

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Dell E5550 owner manual