What mining software are you using? (along with version number)
I have a rig that is primarily GeForce GTX 1070s, but I just replaced one of the the cards with a 3060ti and I can't get it to produce valid shares. It looks like it is mining (producing a hash rate), but every time it finds a solution I receive the message "gave incorrect result". This happens even when using stock settings. I'm also using Driver Version: 460.32.03 and CUDA Version: 11.2.