Hmm this trick did not work for me. I was able follow instructions and create rom, but even adding it screen goes blank when starting up VM. Anyway what I did notice was that ROM created by dump is only 58 880 bytes large, but if downloading same ROM techpowerup.com or using nvflash to get rom file size 256 512 bytes (for MSI GTX 1070 8192 MB
Gaming X)