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Will my TDX be up to the task for a 437w Peltier

post #1 of 21
Thread Starter 
I think Im going to pick up a 437w peltier off Frozen cpu's web site. But would like a couple questions answered first. Im running a Dual rad, dual pump TDX water cooling system and was wondering if those that use this type of cooling method think my system is up to par to cool the hot plate on the peltier? It is a TDX water block with a copper base and a brass top with a lexan or whatever top for a hold down. Ive heard that a standard top will melt for the peltiers heat, so will mine be safe with the added brass top?
Next question is could some one possibly point me in the right dirrection for some insolation designs and explain to me what exactly Im going to need to make this conversion. Im going to do a search on it here in a bit but figured Id get some strait answers in this thread. Thanks for any info, links and so on.
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post #2 of 21
That's a s**t load of heat, it should be able to coap with it, the actuall water temp's will be in the mid 50's though, and i'd estimate a idle CPU temp of -10 ~ -12c, don't know about load though.
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post #3 of 21
Thread Starter 
Well I wouldnt be runnign it at a full437w, Id only use a 12v PSU to run it at half(which Iv heard is more efficient).
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post #4 of 21
i have a lexan topped DD RBX waterblock, hasnt melted from pelt heat. the tubing did as the water was not moving well the water boiled as well, running a 375W pelt at 12V , lol
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post #5 of 21
Quote:
Originally Posted by steglegs
i have a lexan topped DD RBX waterblock, hasnt melted from pelt heat. the tubing did as the water was not moving well the water boiled as well, running a 375W pelt at 12V , lol
Wow, you melted your tubing, huh... I'm surprised your CPU temp wasn't WAY up there with your water temp being so high. The biggest problem I see (with any home-built TEC) is attaching the peltier to the block and the cold plate. A peltier has to be squeezed very tightly between the cold plate and the waterblock to aid in efficiency. Othwerwise your load temps will suffer. The second issue is, I believe the 437w peltier is 72mm by 72mm. You need a block and cold plate big enough to cover the entire surface of the peltier. If you can remedy these two issues, you can make a TEC. How well they'll cool is another question, as I don't know how well your particular block spreads the heat load over the surface of the innards of the block.
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post #6 of 21
I just looked up pics of the TDX, and in my opinion it will do terribly with a peltier. There are two problems:

1) The base isn't large enough to cover the entire face of the peltier.
2) The "innards" aren't very efficient at spreading the heat load.

If you can find the design/pictures of the Winstch Labs Arctic Web, you'll see what a peltier waterblock should look like. It's simply huge. Thick copper cold plate that covers the entire peltier, and then some. Same with the base of the block itself. There's plenty of surface to spread the heat load over, and the innards of the block dissipate heat from the entire surface. I'll see if I can find some pics of the block.

Edit: http://compreviews.about.com/gi/dyna...437w%5Ftec.php

I've been spelling "Winstch" Labs wrong... It's actually Wintsch Labs.

All of the pics came from PC Apex: Hardware, News, Reviews, and Mods website and PimpRig.com.




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post #7 of 21
bump

Just thought I'd bring the pics back to the top.
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post #8 of 21
Thread Starter 
So basically Im USCWOAP?? Id have to purchase a least a square block so the entire surface of the TEC would be coverd? Man that sucks. I was just about to pick the pelt up and start getting some insulation(sp)
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post #9 of 21
What were you thinking of using for a power supply with the 12V, a ATX PSU or something else. AT 12V or less if the power supply can't put out the needed grunt you are better off with a smaller 226 watt peltier. It is also much easier to fit to most blocks as it is 50 x 50mm compared to the 60 x 60 of the 437 watter. I have had some good success with the 226 watter. It all depends on how far you would like to go vcore wise as well, the 226 will not be able to cope with the higher amount of heat generated by the cpu. That is when the 437 steps up and dominates but you will have to give it much more than only 12V to make it step up and do the nescessary job.
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post #10 of 21
Thread Starter 
Well I was thinking of either useing a high amp(25+) regular PSU or a PSU kinda like what I use on my Rc car chargers. But as I think about it I dont think my Novak PSU will do the job as it only runs 14amps. I guess if I do take the dive trial and error will be the topic of the day. I think I am going to stick with the 437watter as Vcore is going to sky rocket once I get my board completely modded.
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