View attachment 240971
thats your problem - yeah back to the power pin
the card is power throttling because pin#2 isn't doing anything.
why? good question.
i doubt its the PSU, if you want to, try run prime95
while running heaven, if the PSU doesn't shut down, you're fine. could have a connector/cable problem, try another cable - i am assuming that TT 850 has a few(?).
but i've not seen this before, it like half the vrms/power planes wanna don't work. and that a no fix kinda thing.
btw, adjusting voltage in AB won't show idling, its adding to the boost clocks (P0 power state) but using Kboost (via evga PX not AB!) should have locked you to 1.212v.