im thinking of putting a 200gb hdd in my xbox but im not sure if this will work with my bios version, when i go into Settings/Info it says my bios version is EvoX M8
It will work as long as it has a part 7 partition. Some bios' won't offer the option but others will. try a bios like EvoX_M8_FC_67_Blue_256.bin Just as long the BIOS has the 67 option. Now don't forget to reformat your xbox HDD to partition anything over 137GB of space.