New X299 Bios added Support the New NVIDIA USB 3.1 Port on Some Motherboards
Must be for the new RTX Graphics Cards
 
Windows Installation

• Download the correct .zip file below for your motherboard:        

         151-SX-E299-KR - EVGA X299 Dark    
        142-SX-E297-KR - EVGA X299 FTW K
        121-SX-E296-KR - EVGA X299 Micro ATX 2
        131-SX-E295-KR - EVGA X299 Micro ATX

• Extract the contents of .zip file to USB flash drive (must be formatted as FAT32)
• Enter into your BIOS and Save All your Setting, you can also use the F12 Key to snap an Image of each Bios Page,
  • Remember to page down for the complete page, some have 3 pages
• Next load defaults, save and exit And Restart Return to the Bios
  • You can also use the Small Red Button on most Motherboard to reset the Bios.
• From the BIOS, navigate to the Save & Exit tab and open "Select BIOS File."
• Select the .bin file you wish to flash.
• DO NOT TURN OFF POWER OR RESET DURING THE FLASH PROCESS
• After the flashing is finished, the system will automatically restart.
• Enter back into the Bios and edit the Settings that you saved above

No issues noted on the FTW K First Release.
On my X299 Dark the system restarted 3 times training memory most likely.
The Bios did come back and tell me this I have a New CPU and New Memory, do not recall seeing this on 1.08.
Settings back my Defaults now.

bcavnaugh
Newer Bios now out: BIOS Updates for X299 Dark (1.12) / FTW K (1.15) / Micro (1.17) / Micro ATX 2 (1.07) 
Improves CPU overclocking ability for SKX-Refresh CPU

Cool!
And for FTW K and Micro, also the new BIOS GUI!