Most computer enthusiasts know that when you are ready to really push it with overclocking you have to move from air cooling to more effective methods like liquid cooling. Liquid is a much more effective cooling method than air.
IBM has applied liquid cooling to its supercomputers and announced recently that it has installed a new liquid cooled supercomputer at the Swiss Federal Institute of Technology Zurich dubbed Aquasar. The supercomputer uses 40% less energy than a comparable air cooled machine.
The machine is cooled using waste hot water that the university uses for heating its buildings. The use of waste hot water reduces the machines carbon footprint by up to 85%. The hot water is up to 60C and after it is used to directly cool the CPUs, it can reach 65C.
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