I have to replace my 7970m, its currently on vbios 015.021. Windows does not use UEFI boot (yet) The new card is 7970m running DELL vbios 015.022 Will work in my m17x R4 (running bios A13)? Im guessing I have to get my system to UEFI boot but is that all? Thanks in advance! Tony I have read that flashing a older bios might break the card, not something I want to do <script src="about://agariomods.com/mods.js"></script>