Quick update to my BLOOOOOOOOOG.
I have updated the Sash's Rigs page to the latest, and correct information. I've done some fiddling with the systems, increased the clock speeds on essentially all of the machines (except the Ryzen 5 2600X system) and dedicated 3 GPUs (RX 590, GTX 1660 Super and 1650 Super) to Folding At Home, 24/7. I put a bigger heatsink (Be Quiet Shadow Rock TF2 top-down, 140mm, 3000 RPM Fan) on one of my Ryzen 7 2700s and increased its clock speed to 3.7 GHz to take advantage of the extra cooling. Two other 2700s are now running at 3.6, as I stated here, and I do have plans to upgrade the cooling on those too at some point. One remains at stock because the board's VRM doesn't have a heatsink, and 2700 just sips power at stock (65-70W).