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Table 45. BIOS Setup options—Keyboard menu(continued)
Keyboard
Keyboard Backlight Timeout on
Battery
Sets the timeout value for the keyboard backlight when the computer is running
only on the battery power. The keyboard backlight timeout value is only effective
when the backlight is enabled.
By default, the 10 seconds option is selected.
Table 46. BIOS Setup options—Pre-boot Behavior menu
Preboot Behavior
Adapter Warnings
Enable Adapter Warnings Enables the warning messages during boot when the adapters with less power
capacity are detected.
By default, the Enable Adapter Warnings option is enabled.
Warnings and Errors Enables or disables the action to be taken when a warning or error is
encountered.
By default, the Prompt on Warnings and Errors option is selected.
NOTE: Errors deemed critical to the operation of the computer hardware
stop the functioning of the computer.
Extend BIOS POST Time Sets the BIOS POST (Power-On Self-Test) load time.
By default, the 0 seconds option is selected.
MAC Address Pass-Through Replaces the external NIC MAC address (in a supported dock or dongle) with the
selected MAC address from the computer.
By default, the System Unique MAC Address option is selected.
Sign of Life
Early Keyboard Backlight Keyboard Backlight Sign of Life.
By default, the Early Keyboard Backlight option is enabled.
Table 47. BIOS Setup options—Virtualization menu
Virtualization
DMA Protection
Enable Pre-Boot DMA Support Allows you to control the Pre-Boot DMA protection for both internal and external
ports. This option does not directly enable DMA protection in the operating
system.
NOTE: This option is not available when the virtualization setting for IOMMU
is disabled (VT-d/AMD Vi).
By default, the Enable Pre-Boot DMA Support option is enabled.
For additional security, Dell Technologies recommends keeping the Enable Pre-
Boot DMA Support option is enabled.
NOTE: This option is provided only for compatibility purposes, since some
older hardware is not DMA capable.
Enable OS Kernel DMA Support Allows you to control the Kernel DMA protection for both internal and external
ports. This option does not directly enable DMA protection in the operating
system. For operating systems that support DMA protection, this setting
indicates to the operating system that the BIOS supports the feature.
NOTE: This option is not available when the virtualization setting for IOMMU
is disabled (VT-d/AMD Vi).
By default, the Enable OS Kernel DMA Support option is enabled.
134 BIOS Setup
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Productinformatie
| Merk | Dell |
| Model | Pro 14 PC14255 |
| Categorie | Laptop |
| Taal | Nederlands |
| Grootte | 54332 MB |
