User Manual

PRIME/PRO/ProArt/TUF GAMING Intel 400 Series BIOS Manual
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1.6.7 Thunderbolt(TM) Configuration
The items in this menu allow you to configure Thunderbolt settings.
The items in this menu may vary according to your motherboard.
Scroll down to display the other BIOS items.
Thunderbolt(TM) Support
This item allows you to enable or disable Thunderbolt(TM) Support.
Configuration options: [Disabled] [Enabled]
The following items appear only when Thunderbolt(TM) Support is set to [Enabled].
Native OS security for TBT
This item allows you to enable or disable Native OS security solution for Thunderbolt hosts.
Configuration options: [Disabled] [Enabled]
The following item appears only when Native OS security for TBT is set to [Enabled].
Control Iommu Pre-boot Behavior
This item allows you to enable or disable dTBT and PCH USB topology IOMMU in Pre-boot
environment (If DMAR table is installed in DXE and if VTD_INFO_PPI is installed in PEI).
TBT tree won’t be included in the exception list.
Configuration options: [Disable IOMMU] [Enable IOMMU during boot without exception list]
Thunderbolt Boot Support
This item allows you to enable boots from Bootable devices which is present behind
Thunderbolt.
Configuration options: [Disabled] [Enabled]