Done some more testing with the F20 bios and its seems stable - BUT if your using SATA drives do read this thread first
https://www.techpowerup.com/forums/threads/crazy-gigabyte-x570-master-issue.260727/#post-4311777
Well been testing with cpu vcore at 1.3v and mem at 1.5v and found the settings stable been playing arround with the load line setting it to normal - on my first board I could not tuch that setting without it being unstable, but even normal grants the boost and settings above. Yesterday I saw the new Buildzoid rambling about lovering DDR VTT
and decided to try it out on my settings sat them to 0.5v and it ajust it as shown below to 0.660v ish. Edit setting DDR VTT to 0.5 did not enable more tight mem settings tinkering around but no succes with CL13 or below.
Today I have been testing Pstates all core settings at 4475MHz its only stable if I raise cpu vcore to 1.393 volt - but If you compare with the auto settings above, its strange to se that the individual cpu vcore never goes above 1.393v where as on the auto setting it does go all the way to 1.5v
The 4475Mhz is below the 4525MHz I had it running at on the old board, but doing all these testing I have found that all 8 core can do 4475MHz but will try to raise the all core later. I will also try to se if lowering DDR VTT is going to enable tighter timings. Buildzoid used it to raise the speed, but I think thats pointless on Ryzen.
Did some more testing - it seems that the chipset gets a bit hotter - but look at that vcore for the individual cpu cores
it seems strange that i does not go above 1.1v