NVIDIA web drivers stopped working After unexpected shutdown due to blackout( High Sierra 10.13.6)

I am getting monitor 7mb instead of GTX 980ti 6gb,was working fluently before the blackout (GPU acceleration was working) i was not getting issues Also cuda drivers shows no GPU detected and nwd is set to NVIDIA graphics driver

Tried to reinstall web drivers (différent versions) same thing

i5 haswell GTX 980ti 6gb 250gb SSD 8gb ram