I've tried that BIOS mod and also one that I made and they both say that the file is corrupted and cannot be read. I flashed the BIOS with the original file using the flash tool you provided (same as one from MSI) and a AFUWINx64 Windows based AMI BIOS tool that I also use. Both tools can update the BIOS with the original file but with the modified BIOS file it says that the file is corrupted. The BIOS I'm referring to is the one from Serg008 for MSI P55M-GD41 and P55M-GD45 (same bios file) ver. 1.10 (A7588IMS.1A0)