I am using a ga-Z68A-D3H-B3 rev 1.0 with a i5-2500k. I am having difficulty reverting back to the Award BIOS from UEFI. I have a working boot usb drive and the efi2awd.exe program provided by Gigabyte. I've gone to GIGABYTE - Motherboard - Socket 1155 - GA-Z68A-D3H-B3 (rev. 1.0) to obtain the the Award BIOS files. I have tried F6, F10, F11, F12 and F13 and they all fail with a "!!! Bad BIOS Image!!!". The command I am running is "efi2awd Z68AD3H.F13". Any help would be greatly appreciated.