Atlantis, here's a new one for you to try. - Motherboard Manufacturer and Model : Gigabyte GA-M720-US3 - Bios revision: F3F - BIOS Type : Award SLP added: Asus,HP SLIC added: Asus Edit: link removed, didn't work. Method used: 0+2, oem7 at end
It can't be modded because it's Insyde bios. But it doesn't hurt to run Everest to see if there's a slic already.
00 = last byte of system module. (Note: almost all modules end in 00) 99 = 8-bit checksum of system module. (Most bioses have an FF byte after system. If it isn't FF it is a checksum byte. If it isn't FF and you make changes to the system module you must calculate the new 8-bit checksum of the new compressed system module and update this byte.) 25 = first byte of awardext.rom. (Note: Third byte of module will always be 2D because of -lh in header)
Does it boot correctly with original F3F bios? If it's stuck at "Verifying DMI" with original bios I would try clearing cmos again and load setup defaults. We might not be able to mod this one, but we could do SSV3 mod of version F2 if you're interested.