flickering issues on rtx 3070 galax sg

Hello i recently upgrade my gpu from rtx 2080 to rtx 3070
so after couple of days i notched that there is some flickering issues on the browsers and sometime on the whole screen ! that thing is never happened to me on my old gpu "rtx 2080"
is there any solution ,
i tried to switch the pcie from 4.0 to 3.0 and that worked but if i enable pcie 4 gen the problem will come again ! please anyone have a solution ! ?