Celebrated too early. It froze again with outer case attached. The only thing I can think of now is to mask the screwholes where the case screws goes through. Seems a bit far fetched to be honest. Something that I've noticed, whenever it hangs it continues to do so until motherboard is removed and put back in. Might not be so weird if the board bend is the issue. Edit: It's stable for now. Used one screw to hold the top part of the outer casting, the middle one to be precise. I just hope it's enough to keep everything together, heh.