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What is the future of CPU cooling devices?

We would all like a home computer that has the CPU power of the Terminator(1984). Of course the Terminator used a processor capable of superconduction at room temperatures(a holy grail). It may have used some exotic element like Yttrium iterate(crystalline lattice structure) to achieve.

What would we use for home CPU coolers being we don't have superconduction at room temperature? I came across something called, 'Thermoelectric semiconductors' and wondered if this could be the key to future CPU cooling? Basically, it's a semiconductor with a cool end and a hot end that radiates out which is turned on through current..a Google search will detail it more.
[Jul 5, 2009 11:07:08 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: What is the future of CPU cooling devices?

A lot of people think refrigerated cooling might be the future; however it uses a lot of energy; takes a big pump; produces condensation that could destroy electronics and it's already been done.

http://forums.techpowerup.com/showthread.php?p=1387626

I believe we must think beyond liquid and refrigerated cooling being those systems haven't panned as well as we hoped.
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Re: What is the future of CPU cooling devices?

Sorry, this is the link I meant to post on the refrigerated CPU cooling project.

http://www.xtremesystems.org/forums/showthread.php?t=222942
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Sekerob
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Re: What is the future of CPU cooling devices?

IBM not say a year or so ago, designed a new grove pattern for processors that would make it say 100% perfect to achieve most optimal thermal transfer seating when placing the cooling element... but what will be coming is chips with in-build fluid cooling and passive at that... no pump... now where would that already have application ;>)
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Re: What is the future of CPU cooling devices?

Thermoelectric converters.

'Introduction
Thermoelectrics can convert thermal energy into electrical energy or use electrical energy to move heat [1]. Thermoelectric generators are solid-state power sources that utilize the Seebeck effect, while thermoelectric coolers are solid-state heat pumps utilizing the Peltier effect. '

'Future of Thermoelectrics
Thermoelectric coolers are finding new applications in such diverse areas as optoelectronics and automobiles. Thermoelectric generators could eventually be used to convert waste heat, such as that produced by combustion in an automobile, to electricity (see Energy Sustainability Page). Many new applications depend on improving the efficiency of thermoelectric materials. Recent success has been achieved by examining complex compounds [1] and engineering structures on a nanometer scale. '

http://www.thermoelectrics.caltech.edu/history_page.htm
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RCC_Survivor
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Re: What is the future of CPU cooling devices?

Having an interest in thermoelectric CPU/NB/GPU chip coolers (Peltier) I read this thread and the links that worked.
It appears that there are two major obstacles to using a Peltier cooler:
1. If the device goes below ambient temperature, condensation will form which can damage the chip it is cooling.
2. A Peltier cooler requires a significant amount of power as it is not very efficient.
On the positive side the Peltier coolers are inexpensive.

At the time this is being written there are no other viable ways to cool a chip below ambient temperature.
The CPU I intend to cool is an i7-2700K Sandy Bridge and the associated Z68 chip.
This i7 has the Northbridge (NB) built into the CPU chip.
At the present the CPU is being cooled with a Noctua NH-D14 for which only one fan is being used.
There are four case fans.
Because of the size of the Noctua and proximity to the top case fans it is impossible to mount the inner fan.
The cooler cannot be installed with the inner fan in place and after installation the fan can not be mounted due to no clearance for the upper clip.
I have a recommendation to install a large fan-less cooler for the Z68 chip but have not done that.
The Z68 has the stock heat-sink.

At full load the CPU cores and package are running at 52C-61C with an ambient temp of 21C.
Those temperatures are not bad and I am not concerned now, but if I really overclock it becomes an issue.
This i7 is rated at 3.5 GHz and is overclocked to 4.3 GHz.
I think I can do much better, around 5.0 GHz.
Would like to have a good cooling solution before overclocking higher.

PS, this system runs at 100% load 24/7/365.
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mikey
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Re: What is the future of CPU cooling devices?

Having an interest in thermoelectric CPU/NB/GPU chip coolers (Peltier) I read this thread and the links that worked.
It appears that there are two major obstacles to using a Peltier cooler:
1. If the device goes below ambient temperature, condensation will form which can damage the chip it is cooling.
2. A Peltier cooler requires a significant amount of power as it is not very efficient.
On the positive side the Peltier coolers are inexpensive.

At the time this is being written there are no other viable ways to cool a chip below ambient temperature.
The CPU I intend to cool is an i7-2700K Sandy Bridge and the associated Z68 chip.
This i7 has the Northbridge (NB) built into the CPU chip.
At the present the CPU is being cooled with a Noctua NH-D14 for which only one fan is being used.
There are four case fans.
Because of the size of the Noctua and proximity to the top case fans it is impossible to mount the inner fan.
The cooler cannot be installed with the inner fan in place and after installation the fan can not be mounted due to no clearance for the upper clip.
I have a recommendation to install a large fan-less cooler for the Z68 chip but have not done that.
The Z68 has the stock heat-sink.

At full load the CPU cores and package are running at 52C-61C with an ambient temp of 21C.
Those temperatures are not bad and I am not concerned now, but if I really overclock it becomes an issue.
This i7 is rated at 3.5 GHz and is overclocked to 4.3 GHz.
I think I can do much better, around 5.0 GHz.
Would like to have a good cooling solution before overclocking higher.

PS, this system runs at 100% load 24/7/365.


I am surprised you are not liquid cooling your pc now! There are LOTS of liquid cooling option from an enclosed loop to open loop systems. And enclosed loop would be one that has no tank but just circulates the fluid to and from one device. An open loop system would be one with a tank of liquid, there are several various formulas you can use, that you can then add as many devices as you chose to the loop. The liquid goes from the device to the tank and back again, sometimes going to other devices along the way but not always. You can then cool the liquid in many ways allowing you to overclock waaay beyond standard air fan possibilities!

If you are VERY adventurous you can even put your motherboard in a freezer and crank it up!! Years ago I saw an Original IBM PC, factory setting of 4.77mhz, set into a tank of liquid nitrogen running just fine at 1ghz! It was doing a limited set of calculations but was doing it endlessly with no problems!!

Oh and put your "inner case fan" on the outside of the case instead of the inside, not as clean but should provide the air needed to go to the next step!
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RCC_Survivor
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Re: What is the future of CPU cooling devices?

mikey159b,
Thanks for the liquid cooling insight.
Will look at some water cooler reviews.

I don't have access to liquid nitrogen but I can buy dry ice locally.
I could use dry ice to see how far the CPU will overclock.

The inner case fan mounted outside is a great idea.
There are possibilities there.
Will give it some thought.
Thanks for thinking out of the box.
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[Feb 20, 2012 8:22:48 PM]   Link   Report threatening or abusive post: please login first  Go to top 
mikey
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Re: What is the future of CPU cooling devices?

mikey159b,
Thanks for the liquid cooling insight.
Will look at some water cooler reviews.

I don't have access to liquid nitrogen but I can buy dry ice locally.
I could use dry ice to see how far the CPU will overclock.

The inner case fan mounted outside is a great idea.
There are possibilities there.
Will give it some thought.
Thanks for thinking out of the box.


No problem! I used to deliver dry ice when I was younger and the only problem with it is that it will disappear, so you must sit there when trying your OC idea.
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Jack007
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Re: What is the future of CPU cooling devices?

I'm using the Khuler 920,
The temp of the water is 37 degrees,
the temp of the chip low 50's,
If I sped the pump up could probably get that down to the high 40's!
(I7 2600K)
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