rx 580 4gb

So I purchased this Gpu 7 months ago. No issues at all while using it, until the last weekend. I realized this while I was playing ac oddyssey, the temp were to high (78-80) and the frame rate started to drop at this point. So I checked the fans and they weren't working, either the led light on...

So I've been having this issue that's shown in this video I'm linking here. I don't even know what to call this issue. I've read a bit about others having it, but no real solution. I decided to download CAM so that I could measure my PC Hardware while playing any games. I noticed that in every...