I read that the 4770 could be software volt modded by flashing the BIOS and using the ASUS tool to increase the voltage. I got as far as flashing the BIOS. Upon reboot Windows would hang on boot. I flashed it back to the Sapphire BIOS and everything was fine again. Has anyone tried this with a Sapphire 4770 and can give me some tips on if this is possible and/or why it won't work?