I installed GTX 1070 for my new rig and I can see the lights are on the graphics card. However, when I plug the displayport cord to my PG278Q monitor, it says no signal. And when I boot into my system with the integrate graphics, I can only see my integrated graphics card.
http://
http://imgur.com/ebRDYFd
http://
http://imgur.com/ebRDYFd