I have a little bit of trouble running the same kit at 1t, at 1t I have trouble with 4k c12, and get 3f a lot, it's not a great kit but can do 4k c12. At 2t it runs fine and can get some more mhz.
I think I just need to buy a nice pre-binned kit, been having trouble finding a nice one myself. I have also only tested 1 es cpu so far, need to find a nice imc.
I wanted to show some super pi but 3900 c12 seems almost embarrassing on a board like this, haha, hopefully I find something nice soon. Going to try cold imc also this weekend.