Pc will run fine with onboard graphics but when i swap to GPU it will keep going to a black screen & restating the system

Ethan5009

Prominent
Jun 14, 2017
1
0
510
Iv recently got the parts to put a new computer together, here are the specs.
https://au.pcpartpicker.com/user/ethan5009/saved/Y8qt6h
I got everything set up and running with the drivers installed properly, it was running well for a day then i went to play a game and the sceen went black while the system was still running. It didnt have anything to do with the hdmi cord or display.
So i restarted the system and it went into a Windows automatic repair restart loop. But when i switch to onboard graphics the system boots up fine. Its nothing to do with the psu (i think) as iv swaped it out with a friends and still had the same problem. At the moment im thinking i might need to send the gpu back but any help would be appreciated.
Cheers Ethan