I just bought a Radeon Rx 560 GPU, and I'm having problems crashing, I found out others had problems with this card overheating, or not big enough psu, I got a bigger Pau, but it's still crashing, and I looked at temp and it's running over 70-80 cels. So I want to get a liquid cooler, but I can't seem to find any for this gpu, can someone help?