Ok so for starters this is my first computer since the windows 98 era so I'm kind of re-learning all things computer.
My sapphire nitro+ rx 590 seems to be running hotter than it should. Playing nfs payback at 1080p I have to run the fans at 100% just to be in the 70c range. It runs pretty loud. I've noticed that the heat pipes in the gpu cooler aren't soldered to the fins, is this normal? I currently have the card apart to change out the thermal paste to noctua NT-H1, if it helps I will update my post.
So on to my case fan question. My rear exhaust fan has oil or grease all over the back side of the blades and the inner diameter area of the housing itself. This grease or oil wasn't all over it when I moved it to it's current location in the case. Is this something that indicates any sort of failure or does it just happen sometimes with cheap case fans? In case it matters it's an apevia fan in a really cheap apevia case that i definitely never should have bought.