I tried below tips but still no luck, display still shows "no image input" in the middle of playing starcraft II.
1- disable the intel onboard graphics in device manager
2- latest bios and nvidia driver
3- uninstalled the viturwatt program
I think this is caused by the gt760 graphics card. I'm using the display port to run 4k resolution at 60hz on my philips 4k monitor. I'm not sure if it's because I'm using display port instead of HDMI, I don't be blue screen at all. All I get is sudden black out during the game and then I have to hard off the machine and then boot it again. Sometimes it reboots right away, sometimes there is still no image so I have to reboot till it gets back.
But the machine doesn't crashes out side of starcraft, which is the only game I play, it works normally and well if I just don't play the game. I had the machine turned on for a week and nothing wrong happened, as long as I don't play starcraft.