I don't have any insights to add here but I did just build a new PC this weekend with an Asus X570 MoBo a 3900x, and 32GB of 3600Mhz memory w/ Ubuntu 19.04 and

I don't have any insights to add here but I did just build a new PC this weekend with an Asus X570 MoBo a 3900x, and 32GB of 3600Mhz memory w/ Ubuntu 19.04 and everything worked as expected. I haven't even updated the BIOS yet. I did spend all day Sunday getting the Nvidia/CUDA drivers configured for Tensorflow, but that's a different story. I just hope people don't think that every system build will deal with these problems.