Hey guys,
I want also to upgrade my UEFI with nvme boot support.
I executed the procedure here with the UEFITool : [Guide] How to get full NVMe support for all Systems with an AMI UEFI BIOS
I tried the large and small nvme file but always with the result the i broke my bios -.-
the god news is I was able to restore my original bios with the Supermicro recovery guide so it is alive again, but I have no Idea whats going wrong.
Super.ROM is the Original File
SMX10SLL0.306.rom with the small driver
LMX10SLL0.306.rom with the large one.
please help me 
regards Matthias
EDIT: File is to big for the upload so https://easyupload.io/0cyy9g
solved,
I will upload the image,
use AFUDOSU <imagename> /P /B /N /S /R /K for flasing
X10SLL0.306.zip (3.96 MB)