Dell Latitude 3450 Dell Owners Manual - Page 45
Option, Description, Enable Audio, source On Battery and On AC. - not turning on
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Option Audio Keyboard Illumination Description NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of these settings. This field enables or disables the integrated audio controller. By default, the Enable Audio option is selected. 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. • Keyboard Backlight with AC This option is disabled by default. Unobtrusive Mode Miscellaneous Devices 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. Allows you to enable or disable the following devices: • Enable Microphone • Enable Camera • Enable Media Card • Disable Media Card NOTE: All devices are enabled by default. You can also enable or disable Media Card. Table 4. Video Option LCD Brightness Description Allows you to set the display brightness depending up on the power source (On Battery and On AC). NOTE: The Video setting will only be visible when a video card is installed into the system. 45