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Dell Docking Station WD19 Thunderbolt User Guide

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Thunderbolt Configuration

If Dell BIOS is used in your system, you may find below Control options in Thunderbolt Configuration page in your BIOS Setup:
  1. Enable Thunderbolt Technology Support (Enabled by default)
    • When enabled, the Thunderbolt Technology feature, and associated ports and adapters are enabled.
    • When disabled, the Thunderbolt Technology feature is disabled, and any connected Thunderbolt adapter devices are not available in pre-boot or within the operating system.
  2. Enable Thunderbolt Boot Support (Disabled by default)
    • When enabled, the following Thunderbolt adapter features are enabled during Pre-boot: Thunderbolt adapter boot support, USB device on Thunderbolt adapter support (including USB boot support). This allows Thunderbolt adapter peripheral devices and USB devices connected to the Thunderbolt adapter to be used during BIOS pre-boot. However, setting this to “Enabled” will override the Security Levels utilized within the operating system. When this setting is enabled, any Thunderbolt adapter peripherals and USB devices connected to the Thunderbolt adapter port prior to booting the system can be used in pre-boot. As long as the device remains connected, it will continue to function within the operating system, regardless of the Security Level set in BIOS.
  3. Enable Thunderbolt Adapter Pre-boot Modules (Disabled by default)
    • When enabled, this setting will allow PCIe devices that are connected through a Thunderbolt adapter (i.e. PCIe devices behind the Thunderbolt adapter) to execute the PCIe device’s UEFI Option ROM(s) (if present) during pre-boot.
    • When disabled, this setting will prevent PCIe device Option ROMs from executing during pre-boot for PCIe devices connected behind the Thunderbolt adapter.
NOTE Enabling the “Enable Thunderbolt Adapter Boot Support“ or “Enable Thunderbolt Adapter Pre-boot Modules“ options may allow devices connected to the Thunderbolt adapter during pre-boot to function in the operating system regardless of the Security Level selected in BIOS Setup. The device will continue to operate in the operating system until it is disconnected. When reconnected while within the operating system, the device will connect according to the Security Level and previous OS authorizations.

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