Originally Posted by prjindigo
There are many problems with this system... the first one is that the average BLOWN heat-pipe heatsink for regular hardware has three to five return wicks and enthusiast kits like the Noctua D14 have six to ten fluid returning wicks in order to cycle the fluid quickly enough to keep the unit and processor below the v.p.p. of the cooling compound so that it CAN cool off and come back to the heat exchange plate at the processor/gpu.
I doubt the speed the fluid can flow over a single or even a bundle of wicks in one pipe is going to be sufficient to return it and even if they're using a gravity feed fluid return the differential in pressure gradient is likely not enough to maintain the flow when the heat starts to seep down the aluminum? return pipe.
I doubt their "no leaks" is even possible let alone plausible. This kind of aluminum become brittle over time - the pipes should be made of brake line steel.
The system will return to a partial vacuum when it cools, just how large of a vacuum depends on the manufacture but as of right now the reason they use copper alloy heatpipes on heatsinks is because its easy to keep soft copper from fracturing when bending it while still maintaining a thick enough wall to keep leaks from occuring.
So while I don't think Thunderf00t should be shown this pie-in-the-sky, I'm betting its facing far more problems than would be worthwhile to deal with.
Additionally I'd point out that their demo displays are all rendered
and fail to show any form of positive air-flow cooling capacity to stop voltage regulators, chipsets and other components from incinerating from being turned on.
The thing is, this isn't fluid. It's a multiphase design, meaning the differential pressure gradient will not correlate to velocity in the same way you'd expect from a fluid-only system. Gravity feeding will play a role, but most of the propelling force will occur from gasification as the liquid passes the chip. The whole system is prevented from equalizing with a secret sauce capillary pump, purpose built for their secret sauce heat medium. The discharged vapor could feasibly exert sufficient pressure to achieve high inlet pressure on the fluid side.
In fact, prototypes have already been tested and the claims verified. All that's left to be seen is if the production model will ship with significant downgrades. The technology itself, though, is largely proven.