Use of Peltier Plate as Cooling solution?

TimMatrix

TimMatrix

TimMatrix

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8 Pack,

I was wondering if you are able to try and experiment the best and safe way to make use of the Peltier Plate to be affixed to the CPU and either water-cooling or air cooling (advise me on that one), in order to achieve sub-zero temps where possible?

Please see these links:
PELTIER PLATE:
http://www.virtualvillage.co.uk/320...dium=shcomp&utm_campaign=google_shopping_feed

CPU with PELTIER PLATE fitted (Demonstration):
https://www.youtube.com/watch?feature=endscreen&v=1EWJf0VlFkk&NR=1


I would love to hear your input, in particular any issues concerning condensation problems, pros and cons, et al.

Appreciate it.
 
Peltiers are indeed a good first step into sub zero cooling. I have never used one myself but have seen them implemented in systems.

For a peltier to work well you need to cool the hot side with water cooling. Air cooling will not cut it at these levels of heat output.

The main two problems with them are they need a big PSU to power them and as they are sub zero they do need suitable precautions to counteract condensation. Both of these can are not insurmountable. Condensation by using something like knead-able eraser around the CPU socket and on the board.

If you decide sub zero is for you next time I take the head off one of my sub zero coolers I will take you some pics and write you a guide to insulating.
 
I've been looking into peltier cooling myself, and was also concerned by the condensation problems.

As an electronics engineer I've had a few ideas (some inspiration from Tealc).

I'm gonna purchase a peltier and PSU next month and work on my plans.

The thought is using the CPU header's PWM output to control the power to the peltier. A small preset on the PSU to adjust offset - I'm sure I'll be able to get it to hold say 20C from 0 to 100% CPU. Obviously there's gonna be a delta, but I should be able to get that down to a couple of degrees. The control circuit would be small enough to fit inside the PSU, with just 2 extra wires, one to chassis/ground and one to the PWM pin, I can get hold of 3 and 4 pin connectors for that purpose.

Your thoughts/suggestions??
 
I am not that experienced with Pelts if I am honest. I have seen them in use and all the effective ones have been accompanied with a large PSU.

The condensation from such a device would be easy to insulate against and I can help you with that as I am used to insulating all hardware.
 
8 Pack said:
Peltiers are indeed a good first step into sub zero cooling. I have never used one myself but have seen them implemented in systems.

For a peltier to work well you need to cool the hot side with water cooling. Air cooling will not cut it at these levels of heat output.

The main two problems with them are they need a big PSU to power them and as they are sub zero they do need suitable precautions to counteract condensation. Both of these can are not insurmountable. Condensation by using something like knead-able eraser around the CPU socket and on the board.

If you decide sub zero is for you next time I take the head off one of my sub zero coolers I will take you some pics and write you a guide to insulating.
Click to expand...


Thanks 8 Pack.
I would have thought that the Peltier method sounds very interesting, indeed, considering that they can be more efficient together with WC System, rather than just WC system alone.

Yes, you are correct that condensation could be the problem here. I have seen some Youtubes, suggesting to spray some fine silicone coating, but I am not sure if that would be the best method, though. Water would get in somehow, some nooks or crannies that one missed when coating it with silicone and the CPU's would become a lovely useless ornament.

Now, I was wondering why can't motherboard makers think of such things? I mean, it's fine for MB makers to say that their boards can do overclocking, but surely, they should know that cooling system is always associates with overclocking, so they should design a motherboard with some kind of waterproofing coating to all its electronics?

I've seen some mobile phones dunking in water and came out unscathed, due to plasma ion coating (pre-treated), and wondered if anyone has done the same with motherboards and condensations would not be a problem anymore.

Any thoughts?
 
I have not killed a board due to condensation in a very long time using my own method, Eraser is great and works well along with vaseline. this works fine down to -120 and lower.

If manufacturers did this insulating then they would have to provide warranty for it too and think about it the end user needs to be able to get the cou in and out of the socket so could not guarentee the seal in that area anyway.

You want to xtreme overclock the insulating will always be upto the end user.
 
8 Pack said:
I have not killed a board due to condensation in a very long time using my own method, Eraser is great and works well along with vaseline. this works fine down to -120 and lower.

If manufacturers did this insulating then they would have to provide warranty for it too and think about it the end user needs to be able to get the cou in and out of the socket so could not guarentee the seal in that area anyway.

You want to xtreme overclock the insulating will always be upto the end user.
Click to expand...

That's true, 8 Pack. I hadn't thought of the warranty angle!
 
has anyone tried using a spare cpu block in line before the actual cpu block with the pelt on it, and another waterblock on the hot side plumbed to the loop either after the actual cpu block as in

pump(would need to be good)..> cold side of pelt block....> cpu..........> hot side of plet block..........>rad

or on a separate loop?
 
Dual loop would be the way to go potentially using 3 cpu blocks all in all, 2 on the pelt and one on the actual cpu acting as a chiller. Would also be an idea to add a temp controller to the active cooling loop that can switch the pelt on/off as required, could perhaps avoid the dew point this way too but I'd presume it's a pain to set up.
 
8 Pack said:
Peltiers are indeed a good first step into sub zero cooling. I have never used one myself but have seen them implemented in systems.

For a peltier to work well you need to cool the hot side with water cooling. Air cooling will not cut it at these levels of heat output.

The main two problems with them are they need a big PSU to power them and as they are sub zero they do need suitable precautions to counteract condensation. Both of these can are not insurmountable. Condensation by using something like knead-able eraser around the CPU socket and on the board.

If you decide sub zero is for you next time I take the head off one of my sub zero coolers I will take you some pics and write you a guide to insulating.
Click to expand...

Any update re: this, please? Ta, mate! ;)
 
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