So...I wanted extreme cooling but was looking around and the least expensive phase change system was ~$500, so what do I do? I make my own. I used a CO2 fire extinguisher and thats about it (I know i should use condensation proofing/fancy thermal compound but I didn't). There is still a few bugs to work out but I'll post them later when i fix them. most notably is my motherboard sucks for overclocking and the capacitors on it wont even work at room temperature let alone sub zero temps, but with out further adeu, my "phase change system." and until i get the cap problem fixed, no temps.