Can't speak for anyone else, but I have a 570 board I think (MSI, I think, Phantom Gaming 4) with 2700x CPU. I have 4 sticks of 16GB ECC RAM (can't remember bra

Can't speak for anyone else, but I have a 570 board I think (MSI, I think, Phantom Gaming 4) with 2700x CPU. I have 4 sticks of 16GB ECC RAM (can't remember brand either, looked at the PG4's page where it lists compatible RAM) and they worked fine. I don't know if the fact that I was looking at said recommended list is what negates the issue you're talking about, but I had minimal issues in my build (mine was from also including a PCIe to 8 SATA port card. Moved the main drive off of it, installed the drivers and started working fine). Initially tried to do a Windows VM w/ GeForce 1080 but scrapped it after driver issues with the device in VM (apparently, Nvidia doesn't want non-Quadra GPUs in VMs).