Setting up a 3rd display. I have my main monitor DP-->DP in my motherboard, works fine. Second monitor is DVA-->DVA in my motherboard, works fine. Now, for the new monitor i only have one slot left on my motherboard. Thats for HDMI. I use an hdmi and only get 60hz/1080p OR 144hz/720p. Yes, fine. So, i bought a DP-->HDMI Cable and used that, now it just says No Cable Connected and I'm worried... Can i not have 2 144hz monitors?