3090 Black Screen

So I swapped my GPU from a 2080 to a 3090 last week and I have been started getting black screen on both of my monitors but the sound is still there. When I changed the GPU I used DDU to swap drivers. I installed 566.36 as it was the most stable one what I saw. It happened first whilst playing GTA V Enhanced and then Destiny 2 too. I updated the driver to the current one the issue is still on going. I'm on Win 10 still and I changed PSUs of course, putting a 1000W Seasonic in the PC. Both displays running on Display ports and one of them is G-Sync compatible. Can anyone help me out? Not sure what should I try.