Apparently, just treat the board as new but don't reload the OS. I did a recovery BIOS update from a thumb drive to 110 then a standard boot. Windows started then appeared to reload all the drivers. It was tense for a moment when my wireless keyboard and mouse froze but that recovered quickly. Another boot, a few BIOS option checks and here I am running on a DH67BL-B3 and a happy camper.