I own a Radeon HD 7870 for a long time now without much trouble. Recently however, I had to replace my monitor, so I bought a PB287Q 4k monitor, in order to be set for a good few years again.
However, playing relatively older games likes Dead Island causes a black sceen-like crash that can only be remedied by resetting the PC, after about 5-8 minutes of play.
I have already tried setting it to medium graphics (altough I could play it on the old monitor on high settings) and to lower the resolution to lower settings such as 1920 x 1080 and 1280 x 720 but the issue persists.
There is no overclocking going on and my drivers have been updates 2 days ago, so any advise what to do now would be greatly appreciated.