Sorry for reviving a thread that’s over a year old! Can I ask, what did you go for in the end?
I have a x399-M Taichi with TR 1920X which I use to run TrueNAS Scale. It’s been running for the last year with 16GB (2x 8gb) 3200mhz non-ECC RAM. This was RAM I already had laying around so it wasn’t...