
The 'dielectric cooling liquid' is completely non-conductive and can even be made up of liquids like soybean oil. The liquid fills a contained space which includes the circuit boards and a pump. The pump pushes the hot fluid through a heat exchanger after which the liquid flows down a cooling path, only to re-enter the closed space again.
The circuit apparently takes only 30 seconds and apparently works so much better than regular air that heavy overclocking can be pre-applied.
Hardcore Computer claims it designed the entire system from the ground up, including the patented coolant, and aims to sell Reactors at around US$4000 - US$5000. The systems will apparently be available internationally and users will be able to buy them with Core 2 Quad QX9770 processors clocked at 4.2GHz.