I bought a few years ago a system with a 550W PSU and a GTX 1070 GPU that I was using with a 27 inch monitor. I sometimes had system crashes with a blue screen.Anyway, after a couple of years I sold the GPU and PSU and bought a Corsair HX850i PSU and upgraded my GPU to an ASUS dual OC 2080Ti and had no more PC blue screen crashes, but sometime, very rarely, games crashed when there were very intense scenes.
When I upgraded the hardware I did not reinstall windows.
After a year I upgraded my monitor to the 144Hz LG 34GK950F and since then the crashes have increased so much that every game crashes after a few seconds of gameplay.The system doesn't crash, only the game crashes to desktop.
First I thought it might be the high temperatures, but most games run under 70C. And the dual fans rarely run above 30% of capacity.
So I limited the temp to 70C and there have been no more crashes. If I go 71C limit all games crash after a few minutes.
After some time I played more with the settings and found out that the issue is the POWER TARGET. If I set it to 50% there are no more crashes. I can leave the temp to the 84C default limit.
What does this power target mean and how can I fix the problem?
For example in Divinity Original Sin 2 if I set the maximum FPS to 60 I get crashes after an hour or so of gameplay without any power targer limit. But if I crank up the FPS limit to 144Hz it crashes immediatly unless I set the GPU power target to 50%.
This happens in absolutely every game. From non demanding games like Two Point Hospital to Control and Gears 5.
Thank you very much for the support and I look forward to your reply!
My CPU is an i7-6700K