With those setting you have to be pushing the hell out of that psu
I know 1k is the safe number for the power and it'll do over that but damn
It hasn't tripped once so I feel okay with it.. I assume like 100-120 watts per card so that's like 700-840w + the CPU/mobo which is
maybe another 50 at most..
Remember, ETH is memory intensive and not GPU core intensive so I doubt the cards are pulling the full wattage anyone stressed tested them at in all the reviews.