Have you tried using another Port on you card
it could also be that the Port on the display is broken.
From the pictures it looks like the fragments aren't constantly in the same spot, So i think it has something to do with the ports/cable
I would use a quadro p400 or p600
They are really fast in Solidworks
Nvidia Quadro p400: https://www.amazon.com/PNY-NVIDIA-Quadro-Professional-Graphics/dp/B06X9PW5DZ/ref=sr_1_1?ie=UTF8&qid=1525698789&sr=8-1&keywords=quadro+p400
Video about Quadro: