Question Asus GTX1070 crashing games

Feb 18, 2019
Recently finished building my pc, and I bought an Asus strix gtx1070 and ever since I've put it in games have been crashing. They're not even that graphically demanding, such as rocket league, but they still crash. When I stress test the GPU it runs fine and stable, and I tried stressing my cpu and still no crash. What could this be? I've tried ddu removing drivers, reinstalling, checking that it was seated properly, checking all cables are in properly, removing any overclocks etc. I took it out, put in an old gtx 710 and there's no crash, they don't run great but no crash.
The graphics card I bought is second hand, but I do know that it wasnt used for anything particularly demanding like mining.