Possibly the fastest 32gb memory setups here. Beast of a machine you have there.
He isn't the slowest, but there are a few of us running 3600c14 and quite a few running 4700-3733 c16-18/19.
jhatfie, dud you set the recommended ProcsODT and CAD BuS (and other CSD settings)? What voltage are you running for VDDR/VCCP voltage? I needed 1.45V to run my dual rank B die sticks at 3600c14.
The fact that you have SR DIMMs should not hinder your ram speed even though you have 4 physical DIMMs. Since you are running SR sticks that is still only 2 banks per channel which means you should get the minimum 3200 speed and should be able to run 34/3533/3600 with the right settings.
Do you know if you know uses T topology or Daisy chained memory setup by Chance? I think I remember reading most x570 were Daisy chained but I might be wrong.
Also, what is your SOC Voltage? Do you have SoV current set to 110/120%? I had to run 1.1V and 120% for my speed.