Noctua Shows Off Thermosiphon Based CPU Cooler Prototype

Icegiant are already taking pre-orders
For their version
Though it's ugly looking compared to noctuas
Couldn't see info for how much cooling capability
These actually have though

Fans are usually louder than pumps
Can't see this being quieter really
But does remove the pump as a mechanical
Point of failure
 
Mcnumpty2323 said:
Icegiant are already taking pre-orders
For their version
Though it's ugly looking compared to noctuas
Couldn't see info for how much cooling capability
These actually have though

Fans are usually louder than pumps
Can't see this being quieter really
But does remove the pump as a mechanical
Point of failure
Click to expand...
I just checked and it's hilariously expensive, looks interesting though if the performance is amazing.
 
ltron said:
I just checked and it's hilariously expensive, looks interesting though if the performance is amazing.
Click to expand...
Some AIO already cost more
Particularly the ones with a screen on them

My gut feeling only
Performance will not be amazing it will be good
Though how good I don't know
It's basically a similar idea to heatsinks with heatpipes
Just no wick in a thermosiphon
It returns using gravity
And you may have a larger surface area on a radiator
Than a heatsink

Thermosiphons aren't a new thing
They're used in all sorts of applications
The main difference with a cpu is a very small contact area
I think there's 2 types
One where liquid is heated and rises to the radiator in this case via convection
And one where it's turned into gas/vapour (phase change)
Phase change would probably use a liquid other than water
Ie much lower boiling point
Guessing in this application it's likely water
 
Aren't the fans usually louder than pumps? Unless this can move that heat to the rad quicker than a normal AIO, what's the point?
 
I like the idea of this better than a normal AIO, or full custom watercooling. Never liked the idea that if your pump fails, the CPU boils. At least with a big HSF, if the fan fails, you've still got a big block of metal doing it's best to passively cool the CPU. The fewer things to go wrong the better.

Plus, it's a nice tech demo. Gotta try new things, just to see what will work, see whether there's a market for it. Kudos for the innovation.
 
What sort of temperature are we talking about for the liquid to turn to vapour? It's going to be very high imagine unless it's under a lot of pressure which it can't be with rubber tubing. Surely it's going to mean very high idle/light load temps? Being Noctua it's going to be stupidly expensive if it ever makes it to market.
 
pastymuncher said:
What sort of temperature are we talking about for the liquid to turn to vapour? It's going to be very high imagine unless it's under a lot of pressure which it can't be with rubber tubing. Surely it's going to mean very high idle/light load temps? Being Noctua it's going to be stupidly expensive if it ever makes it to market.
Click to expand...
It's other way around
Not under a lot of pressure
The lower you get the pressure the lower the
Boiling point of water becomes
Remove enough air/pressure and water will boil at room temperature
Some other liquids will boil much easier
I am just assuming they're using water in these
As its cheaper and no environmental issues disposing it

So either metal/plastic pipes as in the ice giant version
Or possibly rubber reinforced ones in the noctua
I have some here for cars its much stronger than regular watercooling stuff
But still relatively bendable/flexible
Remove air/pressure and the boiling point becomes lower
Not talking about removing to almost a vacuum
Because don't need it to boil at room temperature
Because the cpu is dumping heat/energy into it
What exact amount of heat/energy is required I have no idea
But you may possibly be correct at idle it may be less efficient
 
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