hi name is ray hope this is not a dupe. no signal on my 79 inch lg 4k uhtv via hi spd 2.0 hdmi ca. ok when hooked up to my 24 inch 1080p monitor. this is a upgrade to my gt740 which works great on any of my UHDTV and monitor. any help would be appreciated. so far nvidia corporation tech support can not seam to find a answer. update do not know what i did but now my 4k will try to connect then stops i get asus bios screen for 1.5 seconds then windows 10 screen appears wheel spins for a few seconds then shuts now results no signal connection