Don’t let the painful ‘Xtreme’ misguide you; the VapoChill XE ‘Xtreme Edition’ is high-class CPU overclocker cooling. Using the same commercial compressor found in many kitchen refrigerators, the $859 VapoChill XE circulates a pressurized coolant through the heat sink of your CPU, letting you push the limits of performance without melting your processor to slag. HardOCP has the review, and while they give it nothing but the highest marks, they do dig up the fact that manufacturer Asestek is pushing the commercial refrigeration hardware past the specifications of its intended use, meaning the overclocker cooling system has been overclocked itself.