After a long needed hibernation

[chew*]

It will bench fine Charles. It wont prime fine. Running a custom prime test will either crash because not enough volts or enough volts but excessive heat.

Good measure I have seen so far is if you hit 70c in some back to back CB runs your not going to survive prime stability.

IMO no ones buying the 12 core 3900x to game, they are buying it to put it to work thus workload testing it gets...

prime passes stock so if it can't manually oced it is what it is.

If you sat there and maintained say a 40c temp with some ln2 and an evap the cpu would more than likely exceed your ( 1.4v 4.2 OC ) as from what I can see amd's variable auto OC is solely temp based.

The best results your going to get is a really high end water setup with an updated block that hits the off center core.

fwiw I thought dealing with TR full load temps was a chore but this one is a bit more challenging.

Also fwiw in some of the easier tests in prime the 3900x is hitting 60c and running over 4.2 on its own making a fixed 4.2 OC rather pointless. drop them temps to 50c and it starts running 4.4+