"Do I need to flash a new UEFI image on the motherboard, to enable ReBAR on the GPU ? Yes, this is how it works for Turing GPUs (GTX 1600 / RTX 2000)."
Sounds scary. Like there is a good chance to brick the motherboard permanently. I think i'm going to skip this for my ye olde pc with crappy GTX 1660 Ti card. Can't afford a new system.
just did it, worked perfectly from the guides on my MSI motherboard. Only scary moment was the actual bios flashing, because it took a small while and you shouldn't touch anything around you that risks blowing a fuse.