Dell Precision 7540 Manuale di configurazione e specifiche - Pagina 27
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Option
Keyboard Backlight Tmeout on Battery
Touchscreen
Unobtrusive Mode
Miscellaneous devices
MAC Address Pass-Through
Video screen options
Table 26. Video
Option
LCD Brightness
Switchable Graphics
Description
•
5 seconds
•
10 seconds—Default
•
15 seconds
•
30 seconds
•
1 minute
•
5 minutes
•
15 minutes
•
Never
Allows to define the timeout value for the keyboard backlight when
the system is running only on battery power. The Keyboard
Backlight tiemout value is only in effect when the backlight is
enabled.
•
5 seconds
•
10 seconds—Default
•
15 seconds
•
30 seconds
•
1 minute
•
5 minutes
•
15 minutes
•
Never
This field controls whether the touchscreen is enabled or disabled.
Allows you to turn off all light and sound emissions in the system
when you press Fn+F7. This option is disabled by default.
Allows you to enable or disable various on board devices.
•
Enable Camera—Default
•
Enable Hard Drive Free Fall Protection—Default
•
Enable Secure Digital (SD) Card—Default
•
Secure Digital (SD) Card Boot
•
Secure Digital Card (SD) Read-Only Mode
This 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.
When the Integrated NIC option is selected, we recommend one of
the following:
•
Disable the integrated NIC in the BIOS to prevent any issues
from multiple NICs on the network with identical MAC
addresses.
•
If the Integrated NIC cannot be disabled, do not connect it to
the same network as your dock or USB Ethernet dongle.
Description
Allows you to set the display brightness depending upon the power
source. On Battery (50% is default) and On AC (100% default).
This option enables or disables switchable graphics technologies
such as NVIDIA Optimus and SMD PowerExpress.
System setup
27