I have an R9 290 in my PC. It runs all games fine, but I think it has a problem with how the graphics card is said to run perfectly fine while sitting at 60 degrees while fan speed is at 70%. My PC decides to power off instantly because of the temp. I have tested a lot of other things. The latest thing I tried was taking the GPU out and putting an old R5 230 in. This didn't power off my PC. So that leaves me at the conclusion that it's the graphics card. What can I do from here? (Warranty not expired)