Add NVME boot Gigabyte GA-970A-UD3 rev.1.2

Hi all.Рlease help me add NVME boot on the motherboard Gigabyte GA-970A-UD3 rev.1.2
All my attempts to edit the BIOS are unsuccessful.
I tried to do everything according to this instruction [Guide] How to get full NVMe support for all Systems with an AMI UEFI BIOS
Editors UEFITool and MMTool does not work-don’t see bios or am i doing something wrong( (978 KB)

@adre-adre :
Welcome to the Win-RAID Forum!
Since your attached BIOS is not an AMI UEFI one, you can neither open it by using any UEFI BIOS tool nor add any EFI BIOS module like the NVMe one.
Dieter (alias Fernando)

Thanks for the quick response. Very bad (