Is this Peltier CPU cooling fan the answer to my overheating problems?

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Discussion Overview

The discussion revolves around the effectiveness of a Peltier CPU cooling fan in addressing overheating issues in computer systems. Participants share their experiences, technical specifications, and experimental results related to the cooling performance of Peltier devices and associated heatsinks.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • Some participants note that the Peltier cooling solution appears to be a prototype and may not perform as expected in practical applications.
  • One participant mentions having purchased a similar cooling system and describes its cooling capabilities, indicating it effectively cools a heatsink below freezing.
  • Another participant raises concerns about the heat dissipation capacity of the cooling system, suggesting that it must exceed the heat generated by the Peltier device to be effective.
  • Participants discuss the wattage of the Peltier device being used, with one estimating a draw of 7-8A and around 80-90W, while also noting the limitations of their power supply.
  • There are observations about the performance of the cooling system with the fan on and off, with one participant noting that the cold side remained below freezing even without active cooling.
  • Some participants express interest in exploring Peltier devices further, indicating potential for additional experimentation.

Areas of Agreement / Disagreement

Participants express a mix of agreement and disagreement regarding the effectiveness and specifications of the Peltier cooling systems. While some share positive experiences, others raise concerns about heat dissipation and power requirements, indicating that the discussion remains unresolved.

Contextual Notes

Participants mention missing performance curves and the need for additional measurements to better understand the cooling capabilities of the Peltier devices. There are also references to power supply limitations that may affect performance.

Who May Find This Useful

Readers interested in computer cooling solutions, particularly those exploring Peltier technology, may find this discussion relevant. It may also appeal to individuals experimenting with thermal management in computing systems.

Saint
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ever saw this one?

:smile:
coolingfan.jpg
 
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Saint said:
ever saw this one?

:smile:
coolingfan.jpg
saint, that is for the dual core P4s coming out, but that was just a prototype, the coolers will not be that huge.
 
Yeah, as a matter of fact, I bought one a couple of weeks ago as described in the Peltier Beer thread. That looks to be THIS hsf but with a big fairing and 2 fans instead of one. Notice the copper heat pipe peaking out from under the fairing.

I don't have it mounted on my PC, and I'm not sure if will - but it does a heckuva job cooling that peltier.
 
russ_watters said:
Yeah, as a matter of fact, I bought one a couple of weeks ago as described in the Peltier Beer thread. That looks to be THIS hsf but with a big fairing and 2 fans instead of one. Notice the copper heat pipe peaking out from under the fairing.

I don't have it mounted on my PC, and I'm not sure if will - but it does a heckuva job cooling that peltier.

I don't think your going to have good luck with that if it doesn't dissapate more heat than the backside of that pelt dissapates, you might want to check it out.
 
I've only done some pretty basic experimentation, but it does cool a heatsink on the cold side below freezing. I'll post some pics in that other thread this weekend.
 
russ_watters said:
I've only done some pretty basic experimentation, but it does cool a heatsink on the cold side below freezing. I'll post some pics in that other thread this weekend.
what is the wattage on the pelt and the wattage dissapation per hour on that heatsink.fan combo?
 
alexkerhead said:
what is the wattage on the pelt and the wattage dissapation per hour on that heatsink.fan combo?
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4660&item=3847042208&rd=1 is the peltier I'm using. I don't have a performance curve for it and I didn't measure the amperage it was drawing, but it was taking 11v from a 12v power supply - the power supply couldn't keep up. I'm guessing that it was drawing 7-8A, so about 80-90W. I tested it with the cold side hsf fan both on and off. With it off (and therefore ony sucking a few watts in) it was below freezing, though I'm not sure how much because my thermocouple quit at freezing. All the fins frosted over though. So figure in that condition, the big hsf was dissipating 100W or so. And the hot side of the peltier only got up to about 125F, so dissipating 100W wasn't a problem for that hsf. I'll see if I can get some better numbers (maybe tomorrow)
 
Last edited by a moderator:
russ_watters said:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4660&item=3847042208&rd=1 is the peltier I'm using. I don't have a performance curve for it and I didn't measure the amperage it was drawing, but it was taking 11v from a 12v power supply - the power supply couldn't keep up. I'm guessing that it was drawing 7-8A, so about 80-90W. I tested it with the cold side hsf fan both on and off. With it off (and therefore ony sucking a few watts in) it was below freezing, though I'm not sure how much because my thermocouple quit at freezing. All the fins frosted over though. So figure in that condition, the big hsf was dissipating 100W or so. And the hot side of the peltier only got up to about 125F, so dissipating 100W wasn't a problem for that hsf. I'll see if I can get some better numbers (maybe tomorrow)
that sounds like you are going to have a happy happy processor.
I may also look into one of thos pelts.
you will need an extra PSU or a bigger PSU to operate that pelt.
 
Last edited by a moderator:

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