Dell XPS 13 9340 Owners Manual - Page 90

Table 41. System setup options-Preboot Behavior menu, Prompt on Warnings and Errors

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Table 41. System setup options-Preboot 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. Stop, prompt, and wait for user input when warnings or errors are detected. NOTE: Errors deemed critical to the operation of the computer hardware stop the functioning of the computer. USB-C Warnings Enable Dock Warning Messages Enables the warning messages during boot when the USB-C adapters with less power capacity are detected. By default, the Enable Dock Warning Messages option is enabled. 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 Logo Display Display Logo Sign of Life. By default, the Early Logo Display option is enabled. Early Keyboard Backlight Keyboard Backlight Sign of Life. By default, the Early Keyboard Backlight option is enabled. Table 42. System setup options-Virtualization menu Virtualization Support Intel Virtualization Technology Enable Intel Virtualization Technology (VT) When enabled, the computer can run a Virtual Machine Monitor (VMM). By default, the Enable Intel Virtualization Technology (VT) option is enabled. VT for Direct I/O Enable Intel VT for Direct I/O When enabled, the computer can perform Virtualization Technology for Direct I/O (VT-d). VT-d is an Intel method that provides virtualization for memory map I/O. By default, the Enable Intel VT for Direct I/O option is enabled. Intel Trusted Execution Technology (TXT) Enable Intel Trusted Execution Technology (TXT) Intel Trusted Execution Technology (TXT) is a set of hardware extensions to Intel processors and chipsets. It provides a hardware-based root of trust to ensure that a platform boots with a known good configuration of firmware, BIOS, virtual machine monitor, and operating system. The following must be enabled in order to enable Intel TXT - ● Intel Virtualization Technology - X 90 BIOS Setup

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Table 41. System setup options—Preboot 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. Stop,
prompt, and wait for user input when warnings or errors are detected.
NOTE:
Errors deemed critical to the operation of the computer hardware
stop the functioning of the computer.
USB-C Warnings
Enable Dock Warning Messages
Enables the warning messages during boot when the USB-C adapters with less
power capacity are detected.
By default, the
Enable Dock Warning Messages
option is enabled.
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 Logo Display
Display Logo Sign of Life.
By default, the
Early Logo Display
option is enabled.
Early Keyboard Backlight
Keyboard Backlight Sign of Life.
By default, the
Early Keyboard Backlight
option is enabled.
Table 42. System setup options—Virtualization menu 
Virtualization Support
Intel Virtualization Technology
Enable Intel Virtualization Technology (VT)
When enabled, the computer can run a Virtual Machine Monitor (VMM).
By default, the
Enable Intel Virtualization Technology (VT)
option is enabled.
VT for Direct I/O
Enable Intel VT for Direct I/O
When enabled, the computer can perform Virtualization Technology for Direct
I/O (VT-d). VT-d is an Intel method that provides virtualization for memory map
I/O.
By default, the
Enable Intel VT for Direct I/O
option is enabled.
Intel Trusted Execution Technology
(TXT)
Enable Intel Trusted Execution Technology
(TXT)
Intel Trusted Execution Technology (TXT) is a set of hardware extensions to Intel
processors and chipsets. It provides a hardware-based root of trust to ensure
that a platform boots with a known good configuration of firmware, BIOS, virtual
machine monitor, and operating system. The following must be enabled in order
to enable Intel TXT -
●
Intel Virtualization Technology - X
90
BIOS Setup