I have a gigabyte z97x gaming 7 with the dual bios feature. I need to reflash the main bios because it got infected with a bios virus. However when i use qflash and backup the bios images from each bios the checksum differs every time. I flashed the image from the backup to the main pulled the freshly flashed image from the main and it shows a different checksum from what was flashed. Any ideas??