I have a MSI Z77A-G45-Thundrbolt and could use a modded BIOS to get native NVME support. https://us.msi.com/Motherboard/Z77AG45_Thunderbolt/support
Currently using DUET, but it doesn’t work all the time.
I’ve found this post, but my Thunderbolt mobo uses a different BIOS file, so I don’t think it is wise to use it.
Nicelly done, correct volume insertion and no pad files removed, a pad is present in the original and mod, flash it only with M-Flash, NOT OS environment.
But before, i suggest you do a backup of the current system bios as it contains its own motherboard original data, FPT8 tool as cmd line: FPT -d fullSPI.bin or FPT -bios -d biosREG.bin
Or other familiar tools to you.