Dell XPS 13 9315 2-in-1 Service Manual - Page 26

Table 14. System setup options-Pre-boot Behavior menu continued

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Table 14. System setup options-Pre-boot Behavior menu (continued) Pre-boot Behavior USB-C Warnings Enable Dock Warning Messages Enables or disables dock warning messages. Default: ON Fastboot Fastboot Configures the speed of the UEFI boot process. Default: Thorough. Performs complete hardware and configuration initialization during boot. Extend BIOS POST Time Extend BIOS POST Time Configures the BIOS POST (Power-On Self-Test) load time. Default: 0 seconds MAC Address Pass-Through MAC Address Pass-Through Replaces the external NIC MAC address (in a supported dock or dongle) with the selected MAC address from the computer. Default: Passthrough MAC Address. Mouse/Touchpad Mouse/Touchpad Defines how the computer handles mouse and touchpad input. Default: Touchpad and PS/2 Mouse. Leave the integrated touchpad enabled when an external PS/2 mouse is present. Sign of Life Early Logo Display Display Logo Sign of Life. Default: ON Early Keyboard Backlight Keyboard Backlight Sign of Life. Default: ON Table 15. System setup options-Virtualization menu Virtualization Support Intel® Virtualization Technology Enable Intel® Virtualization Technology (VT) Enables the computer to run a virtual machine monitor (VMM). Default: ON VT for Direct I/O Enable Intel® VT for Direct I/O Enables the computer to perform Virtualization Technology for Direct I/O (VT-d). VT-d is an Intel® method that provides virtualization for memory map I/O. Default: ON DMA Protection Enable Pre-Boot DMA Support Controls Pre-Boot DMA protection for both Internal and External ports. Default: ON Enable OS Kernel DMA Support Controls Kernel DMA protection for both Internal and External ports. This setting does not directly enable DMA protection in the OS. Default: ON 26 System setup

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Table 14. System setup options—Pre-boot Behavior menu (continued)
Pre-boot Behavior
USB-C Warnings
Enable Dock Warning Messages
Enables or disables dock warning messages.
Default: ON
Fastboot
Fastboot
Configures the speed of the UEFI boot process.
Default: Thorough. Performs complete hardware and configuration initialization
during boot.
Extend BIOS POST Time
Extend BIOS POST Time
Configures the BIOS POST (Power-On Self-Test) load time.
Default: 0 seconds
MAC Address Pass-Through
MAC Address Pass-Through
Replaces the external NIC MAC address (in a supported dock or dongle) with the
selected MAC address from the computer.
Default: Passthrough MAC Address.
Mouse/Touchpad
Mouse/Touchpad
Defines how the computer handles mouse and touchpad input.
Default: Touchpad and PS/2 Mouse. Leave the integrated touchpad enabled
when an external PS/2 mouse is present.
Sign of Life
Early Logo Display
Display Logo Sign of Life.
Default: ON
Early Keyboard Backlight
Keyboard Backlight Sign of Life.
Default: ON
Table 15. System setup options—Virtualization menu
Virtualization Support
Intel® Virtualization Technology
Enable Intel® Virtualization Technology
(VT)
Enables the computer to run a virtual machine monitor (VMM).
Default: ON
VT for Direct I/O
Enable Intel® VT for Direct I/O
Enables the computer to perform Virtualization Technology for Direct I/O (VT-d).
VT-d is an Intel® method that provides virtualization for memory map I/O.
Default: ON
DMA Protection
Enable Pre-Boot DMA Support
Controls Pre-Boot DMA protection for both Internal and External ports.
Default: ON
Enable OS Kernel DMA Support
Controls Kernel DMA protection for both Internal and External ports. This setting
does not directly enable DMA protection in the OS.
Default: ON
26
System setup