my monitor flicker by high fps game`s

DrHerbst1

Prominent
Jun 19, 2017
21
0
510
I had this problem with my old pc but back then a had no good graphic card so i thougth doesn't matter to me. Now it matters, since i bought myself a sweet new system with a 1080 strix. And now it's still all glitchy when i play with high fps. What could it be?
 


Yeah I also thought as a possibility, its a samsung s23C550 and not that old.
Its also connected with hdmi so i dont really think its the reason for this problem
 


I'm sorry i thought i put them in my profile describtion.
Regardless, specs:
PSU: 600 Watt be quiet! Straight Power 10 CM Modular 80+ Gold
CPU: Intel Core i7 7700K 4x 4.20GHz So.1151 WOF
GPU: 8GB Asus GeForce GTX 1080 Strix Advanced Aktiv PCIe 3.0 x16 1xDVI / 2xDisplayPort / 2xHDMI 2.0 (Retail)
Tower cooler: Noctua NH-U9S Tower Kühler
Ram: 16GB (2x 8192MB) G.Skill RipJaws V schwarz DDR4-3200 DIMM CL16-18-18-38 Dual Kit
Motherboard: ASRock Fatal1ty Z270 Gaming K4 Intel Z270 So.1151 Dual Channel DDR ATX Retail