well, it's up and running and wow I was not ready for the heat the 3900x puts out these CPU's run so different than any CPU I have used before.
It's on a noctua D-15 idle is 35 to 45 and never goes over 78c which is the peak I have seen. at first, it was sitting @1.46 vcore and would not drop was a little scary but with bios and chipset update all is good. running single-core Cinebench 20 she hits 4.4-4.5 at 1.43 vcore and all core 3.9-4.0 at 1.25. I think vcore will get better once bios get better but AMD has said in Reddit post that 1.0 - 1.5 is normal
still wondering about going ASUS their bios is confusing to me it's been a long time. for some reason, my corsair 32gb ram kit won't run at its 3000mhz xpm/docp speed ( it's on the QVL ) on this board ( it just sticks on ram led when trying to boot up ) no biggie I am at 2933 but my timing suck right now. I am not a memory guy I know very little about timings and such so I am at 20/20/20-49 which blows but it's not slowing me down much at all. Still got just under 7000 on Cinebench 20
All are with PBO2 off just XFR with fabric clock at 1467mhz