Question New monitor blacks out for a few seconds in game... please help

Apr 1, 2020
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So i just bought a new 144hz 1440p gaming monitor to go with my rig (making 3 monitors in total).
As i am in windows the monitor behaves fine and looks great... but as soon as i start gaming e.g. Modern Warfare and GTA V i randomly get a black screen for a few seconds then goes back to normal. Can anybody help?

Specs:
i7 6700k
Palit 1070 Jetstreem
16gb DDR4 RAM
 
Apr 12, 2020
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I have a new pc and it is attached to a Onkyo TX-NR686, also an xbox and a Amazon Firetv 4k stick. While using pnly the PC the screen would go black for a few seconds when the ac kicks on or off. I have a Cyberpowercp1500avlcd, enough UPS for a small busineess. I started thinking. Every electrical systems leaks magnetism and interference. My HDMI cables are Amazon basic cables. 8' for a small distance. I've ordered top quality shielded HDMI cables. That should do the trick.