Dell Precision 3541 Setup And Specifications Manual page 32

Option
Audio
Keyboard Illumination
Keyboard Backlight Timeout on
AC
Keyboard Backlight Timeout on
Battery
Unobtrusive Mode
Miscellaneous Devices
MAC Address Pass-Through
32 System setup
Description
Allows you to enable or disable the integrated audio controller. The option Enable Audio is selected
by default.
• Enable Microphone
• Enable Internal Speaker
Both the options are selected by default.
This field lets you choose the operating mode of the keyboard illumination feature. The keyboard
brightness level can be set from 0% to 100%. The options are:
• Disabled
• Dim
• Bright-enabled by default
The Keyboard Backlight Timeout dims out with AC option. The main keyboard illumination feature is
not affected. Keyboard Illumination will continue to support the various illumination levels. This field
has an effect when the backlight is enabled. The options are:
• 5 sec
• 10 sec-enabled by default
• 15 sec
• 30 sec
• 1 min
• 5 min
• 15 min
• Never
The Keyboard Backlight Timeout dims out with the Battery option. The main keyboard illumination
feature is not affected. Keyboard Illumination will continue to support the various illumination levels.
This field has an effect when the backlight is enabled. The options are:
• 5 sec
• 10 sec-enabled by default
• 15 sec
• 30 sec
• 1 min
• 5 min
• 15 min
• Never
• Enable Unobtrusive Mode (disabled by default)
When enabled pressing Fn+Shift+B will turn off all light and sound emissions in the system.
Press Fn+Shift+B to resume normal operation.
Allows you to enable or disable the following devices:
• Enable Camera (enabled by default)
• Enable Hard Drive Free Fall Protection(enabled by default)
• Enable Secure Digital (SD) Card (enabled by default)
• Secure Digital (SD) Card Boot
• Secure Digital (SD) Card Read-Only Mode
• System Unique MAC Address (disabled by default)
• Integrated NIC 1 MAC Address
• Disabled
The feature replaces the external NIC MAC address (in a supported dock or dongle) with the
selected MAC address from the system. The default option is to use the Passthrough MAC address.