Nvidia Gforce 4K problem [solved]

OK so I recently upgraded my graphics card from an R9270x cross fire set up to a 980ti. For some reason now my primary display won’t do 4k. It will output as a secondary display but not primary. As primary it maxes out at 1080p. Any ideas on how to get it to work. It worked on my old cards.
Solution to anyone else who may have this problem. I had to roll back drivers to 350.5
Answer #1
Stupid but important question, do you have a monitor that CAN handle 4k?
Didn’t see that in your post.
Answer #2
Yes. Like I said, I could get 4K on the old graphics cards it’s just that the frame rate was ~love~.