sipaison

Alright um.....how does this work lol?? Was looking at peltier coolers on xoxide and not sure exactly what im looking at...do you put that plate in between a normal air cooler and your cpu? Please explain

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Ionimplant

A Peltier device pumps heat from one plate to the other. You then have to move the heat away from the plate receiving the heat. Typically this is done with a heat sink and fan.

Check out http://www.dansdata.com/pelt.htm

MijnWraak

It's designed for watercooling, afaik. Need to have a low temp on other side of chip.

flak-spammer

Actually air cooling TEC (thermoelectric coolers) is quite common but since this has to do with computers it's unlikely you'd find a heatsink large enough to dissipate all the heat whilst still being able to fit it in your tower. A TEC is a basically a bunch of thermocouples connected together squished between two ceramic plates that moves heat energy against the thermal gradient. It pushes heat from one plate and puts it onto the other plate as well as it's internal load. So by nature they tend to produce a lot of heat because they produce heat on their own and they move energy from one side to the other. I would not suggest air cooling a TEC unless you had a CPU that was very low wattage say you had a board with a mobile CPU you might be able to manage that. Otherwise the TEC has to be quite large to move the heatload of the CPU in question. Hopefully that helps a little. If you continue to need questions answered just post around here, there are a few people who know a lot about this subject area.

TiGa

Yes and no...
CoolIT makes air-cooled TEC chillers with not-so-bad results.

I had to combine two of their units to be able to keep my i7 920 in check but I would watercool the hot side if I could. The heatsink gives diminishing results if ambient temps get over 25C, even if moved out of the case.

One unit fits in a casing but case ambient temps are usually a little hotter than normal ambients so it's not an advantage. All my chiller setup is laying on the floor besides the tower for better results.

TiGa

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flak-spammer

Yes but TiGa the CoolIT units are chillers not direct die and those are undervolted TECs. If you want to do direct die it just doesn't work well at all. It is as a result of the fact that TECs can pump tons of heat faster than many mechanical devices including in my experience heatpipes.

TiGa

My point was that yes it's possible to fit an air-cooled TEC in a computer but it's not the preferred alternative.

An air-cooled on-die TEC would be pretty pointless indeed. Why not skip a step and put a heatsink directly on the CPU for better results...

TiGa

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