Video randomly goes out

[HDizzo]

Intel i7-4770K (not overclocked)

Noctua NH-D14

Gigabyte Z97-HD3

32GB DDR3 1600mhz 

Samsung 850 EVO 250gb x2 (raided)

Western Digital 3TB Black (storage)

EVGA GTX 970 4GB ACX 2.0

EVGA 750 watt Supernova Bronze

Samsung DVDRW combo drive

Corsair Carbide 500R Case (5 case fans)

Samsung 40" 4K TV as monitor

Windows 10

 

Issue: Video will go out randomly, seems like when on load.

 

I picked up a 40" 4K TV for the holidays to use as a monitor.  I originally had an ATI HD 5850 which I had to replace since ATI cards didn't support 4K resolution @ 60hz. I picked up a Zotac 970 and connected that to the TV via an hdmi 2.0 cable and it did run @ 60hz.  However, whenever I launched any games the video would go out.  I originally had an old 700watt PS that I ended up replacing after someone suggested that the PS wasn't supplying enough juice to the card when on load.  I picked up the EVGA 750 watt PS and also replaced the Zoltac video card for an EVGA 970 video card.  I got them both replaced and while I can game now, the video still randomly goes out.  When the video goes out, I need to power my entire computer off and back on to get the video to come back.  Sometimes the system is completely frozen and others I can still heard the audio.  I've tried 3 different versions of the Nvidia drivers.  I've also read about issues with Powermizer so I tried adding the registry keys in to disable Powermizer.  None of these seem to help and its really driving me crazy and making me contemplate scrapping this system and building a new computer.

 

Sorry for the long post.  Any thoughts?

[HDizzo]

bump