Odd computer freezing/overheat issue

Well, here is the strange thing, My computer has plenty of fans. Ten inch fan in the side, a fan on the mobo itself, a fan on teh back and a fan on the front. The issue is it’s still overheating (I guess). It happens a lot more while I use Windows than when I use Ubuntu.
The other odd thing is that I don’t see anything that would cause this. The case is an Enermax uber-chakra case. Now I’m not very familiar with cases but I assume the more holes the better?

Now what is your suggestion on this? Should I get a new case or is there something horribly wrong with ym computer?

I am not overclocking, and my heatsink is the default intel heatsink.
if you need specs I will be happy to provide some.