I just recently upgraded my computer and i'm trying to use my 4K tv for my monitor , however when i try to go into the Nvidia control panel the native resolution which is 4k x 2k 3840 x 2160 I can only get 30 hz refresh out of that resolution and any other 4k resolutions from the control panel. How can i get it to work properly at 60 hz and 4k. My set up is GTX 970, amd 8320- 8 core, and im trying to use my 55" 4k tv. Thank you