I recently upgraded my gpu from a gtx 1060 3gb to a rx 5700 xt. I have also upgraded my ram and added a harddrive to this prebuilt pc. The thing is that the performance is great and games run smoothet than ever before. There is one problem though. After 2 or 3 hours of doing everything from playing cities skylines to watching youtube my monitors go black and the audio gliches out before disepering. I dont know which one but some fan does some strange thing. It gets in a loop where it stansds still and then bursts for a second and so on. After that its just to turn of the computer and power on and everythings fine for 2 to 3 hours. In the event viewer a "critical error" occurs everytime and it reads that something unexpected happend to the power. All of this info sound like a psu problem but I really would like not to buy a new one. If you have any clue to what this is exept a psu problem or if you have got some troubleshooting tips. Please let me know!