View Full Version : An Alternative to the 172Watt Pelt
AKRedneck
09-26-2003, 01:06 PM
Has anyone used THIS (http://www.cooltechnica.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=P169W&Category_Code=TEC) 169 watt peltier? This looks like a great alternative for those of us with the 12v powersupplies (vs. 24v) that are looking for something a little less than the 226w pelt (my electric meter spins waaay too fast).. Any experiences?
All TEMs (proper name for pelts ;) ThermoElectric Module) taht I've seen @ online shops like Cooltechnica are Vmax 15volts pieces.
They are recommended for 12v simply because 12v seems to be their sweet spot in terms of performance v. own produced heat output (the more volts the more own heat a module will produce at given power rating).
I want to get one to replace 80w module in my MCW50-T assy :cool:
I bet it will bring GPU temps well below zero !
eXtenz
09-30-2003, 04:40 AM
ahh but i think he means a alternative to the 172w in general, everywhere ive seen the 172w module its been 24v as well (which would mean about 17-18v for optimum efficientcy)
but ya i would just look at the other alternatives cause there are 12v 156 and 220, and 226w peltiers for the same price
Here (http://www.peltier-info.com/manufacturers.html)
nice link to a page with massive amount of 'pelt' cooling info - a must for anyone serious about using this highly advanced technology.
You can get ANY pelt specs you like, it's a matter of price.
Units sold by overclocking stores are usually (95%) 15volts rated pieces and come in two sizes 40x40mm and 50x50mm.
AKRedneck
09-30-2003, 02:42 PM
Originally posted by Jabo
Here (http://www.peltier-info.com/manufacturers.html)
nice link to a page with massive amount of 'pelt' cooling info - a must for anyone serious about using this highly advanced technology.
Good discussion guys, good link Jabo.. I think I've been to some of those manufacturers sites before.. I guess the thing to remember here is there are other alternatives depending on your psu. I know I'll keep my 12v meanwell and probably just go with a smaller pelt.. My 226watt takes 2 radiators just to keep the water temps within reason ~ (room heater)..lol.
You guys may have been HERE (http://www.overclockers.com/topiclist/index21.asp#PELTIERS) before. They have some good articles on Pelts.. Best efficiency of a pelt is at 85% of its rated voltage.. For the above reference 169watt pelt, were looking at an optimum voltage of about 12.9v which is perfect for the meanwell S320-12 (adjustable up to ~13.2v..)
:D
charlie
10-18-2003, 08:29 PM
I think it's a good alternative to the 226 for lower clocked rigs... but as a replacement for the 172W commonly retrofitted into MCW50-t it will NOT work as it's 50mm x 50mm :D
C
AKRedneck
10-18-2003, 09:07 PM
Originally posted by charlie
I think it's a good alternative to the 226 for lower clocked rigs... but as a replacement for the 172W commonly retrofitted into MCW50-t it will NOT work as it's 50mm x 50mm :D
C
oh, i guess that's a good point.. i'm using a modified mcw462 with pelt on the graphics so i don't have a problem using the 50mm versions.. so for me it seems like a good alt for the 226 with my 12v ps. it works pretty good and i only loose one pci slot w/ the mcw462
:D
hedge
10-20-2003, 08:46 AM
I run my 226 watt at 5v. It seems to achieve lower temps than it did at 12v with just air cooling. I haven't mounted it to anything yet, though.
Originally posted by hedge
I run my 226 watt at 5v. It seems to achieve lower temps than it did at 12v with just air cooling. I haven't mounted it to anything yet, though.
Yes, it to be expected since air cooling is not as effective as water or chilled water.
Lowering your voltage supply you reduced dramatically the 'own' heat produced by module which in turn allowed you TEC to reach lower 'cold' side temps :).
When you load cold side things may not be so rosy tou ....