I bought new VEGA 56 form ASUS to swap my old gtx 960. I uninstall all drivers from nvidia and tried to replace it with VEGA. Sadly all i got is black screen on both, mobo and gpu outputs. Right now i unplug both 8 pins plugs from GPU and i've got signal on mobo HDMI output so im able to write now. Sadly driver finder doesnt see my GPU right now. What to do?