Thank you so much Fernando for this detailed instruction! It worked for my AMD MoBo Gigabyte F2A88X-D3H perfectly. I used latest available BIOS form manufacturer version F7. Still it did not support NVMe. So i integrated NvmExpressDxe_4.ffs driver using UEFITool. And flashed it directly form BIOS utility Q-flash. After reboot system started to boot from NVMe drive Plextor 256GB PCIE SSD with no issues.