Asus released an executable file to upgrade your vbios in Asus GTX 680 models so that it will enable the card to use Windows 8’s Fast boot option, provided its installed on an Asus UEFI motherboard ...
Generally speaking, motherboard manufacturers try to release BIOS/UEFIs that are stable and have all the features you’ll ever need for the motherboard on day one however, this rarely happens as bugs ...