@desray2000
The BIOS for the GA-X79-UD3 Rev. 1.0, which had been modded by Lost_N_BIOS and uploaded in September 2019, is not available anymore and cannot be recovered.
Since our retired BIOS Guru Lost_N_BIOS has not been online for a very long time, I have modded the original F20 BIOS myself by inserting the NVMe module named NvmExpressDxe_5.ffs.
You can flash the attached BIOS at own risk by following >this< Guide. Good luck!
To be able to get Win10/11 installed onto an NVMe SSD, please follow “Step4” of >this< Guide.
X79UD3F20_modbyfern.rar (3.6 MB)