Computex 2016 - Raijintek shows off its "Pumpless AIO" in Taipei, revealing how exactly the new generation of liquid cooling systems operate.
Today's closed-loop liquid cooling systems are more optimized than ever, but in the not so distant future, we could start seeing pumpless AIO systems. Raijintek demonstrated its new pumpless LCS prototype at Computex, utilizing a simplified radiator, tube, and water block system that utilizes the hardware system's natural heat to circulate the coolant.
The Pumpless AIO is made up of a passive, copper-fronted CPU/GPU water block with small channels optimized for maximum heat dissipation, and two tubes that lead up to a radiator. Now you might be wondering how exactly the coolant travels updates to reach the radiator without a pump; the system uses special coolant that evaporates into vapor at 40C - 50C, and the vapor travels up one tube into the radiator, where it condenses back into a liquid to circulate down the other tube and cool the CPU/GPU.
Raijintek's new prototype essentially uses the natural heat generated by PC builds to push the coolant, with hotter temperatures driving even faster coolant circulation. The manufacturer notes that due to the evaporation process tube channeling, the radiator must always be above the water block. The Pumpless AIO was demonstrated without any fans, but users will be able to attach the standard dual-fan array to the system--however we're not sure how fans will affect the circulation performance.
With reduced noise and no pumps, Raijintek's new cooling system looks like it could be a tremendous advantage over existing closed-loop systems. There are a few things to keep in mind, however: the price of the special custom coolant, and the manufacturing costs of the device itself. Raijintek's Pumpless AIO requires vacuum-sealed components to operate, so we're betting the cooling system could be pretty expensive.
Raijintek's Pumpless AIO is still in its prototype stages and the company has no word on official release or pricing.
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