Answer

Please enable BIOS\Settings\Advanced\Thunderbolt (TM) Configuration\Thunderbolt (TM) Support [Thunderbolt Enabled] --> Save & Exit (F10).

Models

  • MPG X299M GAMING EDGE AC
  • MEG X299 CREATION
  • X299 RAIDER
  • X299 TOMAHAWK
  • X299 TOMAHAWK ARCTIC
  • X299 SLI PLUS
  • X299 TOMAHAWK AC