my mobo GA-AX370 gaming 5 was error a couple month ago after i bought it and then i send it back to get repaired by gigabyte. but when i got it back, i am confused because now the bios shows that i am using AB350 version. how is that even possible? i though every bios was unique to their spesific motherboard and you can't flash different type of bios to different motherboard. now when i need to upgrade the bios, i am very confused which version should i download, try to install the original GA370 bios or stick with this AB350 bios? is it even possible to revert back to original GA370 bios?