Alright, I have a few minutes to sit down and write so let me run through this;

As previously mentioned your PSU is mounted the wrong way up, if you are so concerned about air flow you should be able to understand this. Either you need to flip it or raise the case off the surface of the desk with feet or a stand. The problems with the PSU being cheap and underpowered are one thing but those Ultra PSU’s have a reputation for over heating anyway and while you irritate the hell out of me I don’t want your PC to melt. Very average to poor efficiency and poor ripple suppression. They do have nice quiet fans though.

In your other post when I mentioned sleeving you said ‘I wanted to get cable sleeves, but then I was informed that I would have to remove all of the connections to do so.’ This is so amazingly dumb for someone called casemods I can but stare in wonder at it. Yes you have to remove the molex connectors, it’s the first thing you learn to do modding, or you get a PSU sleeved by the manufacturer. The Corsair modular PSUs come highly recommended by me.

The other thing you mentioned is your graphics card overheating and crashing beyond 67C, the 5770 ‘should’ be able to take that temperature If you do some searches on that graphics card and temperatures you should see that it should be able to handle about another 10-20 degrees without crashing, that is something you should investigate further.