This assembly of medium-density fiberboard, lexan and aluminum—combined with a box fan—is capable of generating gusts of up to 30mph which charge through the computer at the center of the build. That'e enough to keep an Ivy Bridge 3770K processor, overclocked to run at 4.5GHz, at rather low 65 degrees Celsius, and a Radeon 7970 graphics card running its GPUs at 1225MHz with core temperatures at 46 and 56 degrees Celsius.
The project may have been undertaken for fun, but at least it's now being put to good use: it's crunching through cancer research data as part of the World Community Grid project. You can read a full account how the cooling system was built over at Total Geekdom. [Total Geekdom]
Image by Total Geekdom