I do not have much to add, tlgalenson. You have a perfect laboratory to get at what you need to know. You did not how much or brand of memory. At 64 GB you should be able to run a little faster (maybe 3600 MHz) than 128 GB and Ryzens and Samsung B-Dies really seem to like each other and results in a more stable system. Here is a really nice free memory utility if you are not aware - Thaiphoon Burner. Let me know if you cannot find it via Google. Posting a link causes a few minutes to a day or so delay in posting due to moderating. Another really great utility is Ryzen Master (AMD), especially for temperatures because it is the only reference I am aware of. Both of these are W10 only. You may want to boot W10 and do some testing. Enjoy, John.