dmdilks,
Late to the game here, but this thread addresses my issue, too.
I have an X79-UD3 Rev 1.0 at BIOS F10 and want to upgrade to a GTX 970. I understand this will require flashing to at least the F16 BIOS, but that version appears to require the use of @BIOS, whereas F20 does not. Can I go directly to F20 using Q-Flash?