I am building a Peltier setup at the moment

The defining problem with thermoelectric cooling is that you need a system which will deal with <>200W through a meaningful temperature gradient, say 20 degrees. During load, all is well, if you're below ambient it isn't by an excessive amount.

When the processor is idle, and burning through 50W or so, the peltier will now pull it down by significantly more than 20 degrees. Perhaps 50 or so. As you wont tell me what peltier you're using, I cant tell you what temperatures to expect. Presumably you've already worked this out.

At 50 below ambient, condensation is a substantial problem. The effective way to deal with this is to reduce the cooling effect of the peltiers when the system is idle, as an idle processor at -40 degrees, while burning through electricity at a considerable rate, is no use to anyone.

I don't care if you're a marine with gaming clan, a house and many children. Honestly, I just don't. I want to know how you're implementing a temperature controller for the system, and how you're managing to implement direct die peltiers in an age where 250W cpu's are commonplace. Perhaps in a few weeks time you'll come through with some information, but I'm not going to hold my breath for it, because everything you have written here makes it appear very unlikely that you know what you're doing.
 
Im kind of baffled by this thread and if i should even bother with posting in it at all.
So here goes my 2pence worth.
Photos or it didn't happen ! :)

in all seriousness though, I also do not understand why you don't give specifications of at least the TEC you intend to use.
 
gods sake...give the guy a chance....from what i can see he expected to start his build already but hes still waiting for his blocks that aint here yet due to natural disaster...thats why he started the thread...im sure full specs will be listed once parts are in hand so just chill out till such times....and if you feel frustrated by the what you see as a lack of info then dont follow the thread....simples....nobody wants you to feel Peed off
 
cammy5477 said:
gods sake...give the guy a chance....from what i can see he expected to start his build already but hes still waiting for his blocks that aint here yet due to natural disaster...thats why he started the thread...im sure full specs will be listed once parts are in hand so just chill out till such times....and if you feel frustrated by the what you see as a lack of info then dont follow the thread....simples....nobody wants you to feel Peed off
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No one is rushing him to get the stuff.. we are only asking for him to provide us with the information he claims to have already worked out.

He said he has done all the calculations, and he says he has ordered the Tec's. Which is all fair enough. No one is demanding pictures of the Tecs, all we are asking him to do is copy and paste these 'calculations' he has apparently already done into the thread. I do not understand what would be so difficult about that. Also he goes on about how he has ordered the Tecs, why not just tell us what Voltage tecs he has already ordered as he would have had to ask for xVoltage Tec.

And the big issue is that when someone askes him about this, instead of just providing a simple answer he goes to tell us about his 15 children and war stories? seriously? I mean ..... Seriously!

All I can do is laugh at the absurdity of the entire thread tbh.
 
Solemn said:
No one is rushing him to get the stuff.. we are only asking for him to provide us with the information he claims to have already worked out.

He said he has done all the calculations, and he says he has ordered the Tec's. Which is all fair enough. No one is demanding pictures of the Tecs, all we are asking him to do is copy and paste these 'calculations' he has apparently already done into the thread. I do not understand what would be so difficult about that. Also he goes on about how he has ordered the Tecs, why not just tell us what Voltage tecs he has already ordered as he would have had to ask for xVoltage Tec.

And the big issue is that when someone askes him about this, instead of just providing a simple answer he goes to tell us about his 15 children and war stories? seriously? I mean ..... Seriously!



All I can do is laugh at the absurdity of the entire thread tbh.
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you show a total lack of respect by saying 15 children and war stories.....
he was just trying to make a point that his life is busy with 5 (FIVE) children and that he has served our country.....although not relavent to the desk project theres nothing wrong in methioning his job and family is there?
i really hope he builds an awesome project and shuts all the doubters up...
 
The build is going to take place,as soon as all the parts are here and for a very good reason.
I will then start the photo log.
I will be preparing the board for the Tec's and block.
Providing step by step information on condensation proofing the board along with photos.
I will be soldering all the components together,giving descriptions along the way.
I will be giving up the details of and Data of the PSU,Tec's ,Controller Unit ,Mosfets along side this also providing photos of the parts as I go along.
After this,when it is all together I will then be disclosing details of tweaking the system to get the optimal temps,of cold/hot side of the Tec's,and also tweaking the fan system inside my desk to also make sure no other components suffer from condensation anywhere inside the desk.
I prefer to work this way,as it allows me to concentrate fully on what is being done at the time.
If you can not accept this then I will not apologise for your impatience.
If you do not believe that this build is actually taking place,then please,do not start quoting your demands to me,I will give the information when it is time to do so.
Other than that,I am only now waiting on the TEC'S and block.
This project is close to my heart and the time,effort and cost and enjoyment during it,has not gone to waste.
I normally don't even bother displaying everything I do in public as I am quite a private person,there is nothing wrong at all in the way I have completed the first phase of this project,I get the idea,I buy the parts I need after thinking about what it is that I am trying to do/achieve,then I start the build.
If you do not like this,that is not my problem,I came on here stating my intentions,explaining that I was going to log everything as soon as I start the build,I could not have explained it any simpler.
I got insulted,belittled,accused of being thick,told that I was wading into things without any thought whatsoever.
I quoted things about my life because,as a parent I have other responsibilities and to let it be known I have a busier schedule than most,I mentioned about my time serving My Country as a Sharpshooter because as such you have to make calculations on the go.
Do you know how much calculation goes into taking a shot,from say 1/2 a mile away under fire and concealed from sight,having laid there for nearly 20 hours,weather changing all the time.
Knowing that if you get it wrong.......you are dead or you could get someone else killed.
This was mentioned because I do plan ahead,I do know what I am doing and for all the doubting people out there,never underestimate anyone as to what they know or how they work.
Well that out of the way maybe now the doubters will just now wait for all my parts to arrive and details logged and offered up.
What I am saying POLITELY is Please stop the insults.
Wait ,as I am waiting for the last of the parts to be completed and sent to me,then I will log it all.
 
I've got a couple of TEC's and a 24v PSU sitting in a box waiting for me to have a play, so I will be interested in the practical problems of controlling such a system (although like the others, I was also hoping for some technical research to have a think about first :().

What seems to have been overrun in the various misunderstandings, is why exactly you are splicing two 1200W PSU's to run your rig?
Surely one of them would have been fine? :confused:

Before you go off on a tangent, yes I'm aware that the Meanwell PSU is the PSU tasked with supplying the TEC's ;)
 
If you knew what my desk contained,then you would understand,I have 1 psu on the system side and the other is used for All fans,pumps,Hdds,BR DVD,Power fans and any other extra item that I can take away from the system side .
The system side psu is powering the board,cpu,graphics and 16 gb of mem .
This is why i have them spliced,so when the main psu is powered the second one also starts at the same time.
 
PromETHieus said:
If you knew what my desk contained,then you would understand,I have 1 psu on the system side and the other is used for All fans,pumps,Hdds,BR DVD,Power fans and any other extra item that I can take away from the system side .
The system side psu is powering the board,cpu,graphics and 16 gb of mem .
This is why i have them spliced,so when the main psu is powered the second one also starts at the same time.
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try using this:
http://www.thermaltake.outervision.com/Power

For that lot the calculator says around 680W,
that includes 8 fans and 4 HDD's, i7, pump, 580GPU etc etc etc

just for the hell of it, let's say we double it for a stupendously conservative margin of error, and it's still only around 1200W

So really, what is the 2nd PSU going to usefully do in this rig? :confused:
One single 1200W is already enormously overspecc'd for what you have there.


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Guys, can we cut out the aggression please, that includes the OP.

I'm looking forward to seeing some results for this, though yeah I can't see why you need 2x 1200W PSUs.
 
There are 23 180 fans in the desk,i used to run 2 x 4870 x2's .
But it is just my preference to run these,it may be overkill,but that is just for peace of mind.
The desk is not your normal pc build and as such i wanted to make sure everything is covered,no harm in it,better to have too much than run the system underpowered.
Thats my view and the desk has performed more than fine for me it is on 24/7 and i get no issues at all.
 
I'm actually intrigued as to how you're going to control the TECs, are you going to use the fan controller to turn the Meanwell on and off based on a set temperature?
 
i have a bigNG unit and have removed the capacitor on the terminal that is going to connect the Tec,this allows for smoother control of the Tec,with the capacitor still in place the fluctuations are terrible.
 
You're powering the TEC direct off the bigNG? Aren't they only designed for powering fans? I could see you using a fan output and wiring it to the Meanwell remote control input and then configure the bigNG to turn on the Meanwell if say your CPU temp was more than 0C then turn it off if your CPU temp dropped below -10C or something along that lines. With a bit of tuning you could get the TEC to only power up when the CPU is doing something.
 
I thought you were using a relay on a heatsink to turn the TEC's on and off from a PID controller output?

Actually, is there a technical reason for not using PWM with TEC's? I'm sure I read something about they are not supposed to be rapidly cycled - 99% that's just a brain fart on my part though :/
 
The relay is for the + side Mean Well psu and the system side Psu to enable Mean Well activation,once the system is turned on ,otherwise the Mean Well would be running at full pelt 100% of the time,if this is not done the system would switch off,leaving the Mean Well running and then with no pumps running,the Tec,s would burn out,this I would not want to happen.
 
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PromETHieus said:
The relay is for the + side Mean Well psu and the system side Psu to enable Mean Well activation,once the system is turned on ,otherwise the Mean Well would be running at full pelt 100% of the time,if this is not done the system would switch off,leaving the Mean Well running and then with no pumps running,the Tec,s would burn out,this I would not want to happen.
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OK, thanks,
if the SSR or the Meanwell fails, is there a failsafe circuit to then shut down the PC?

May I suggest some temperature monitoring of each heatsink, that would really help me in designing a similar build :)

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I have the crosshair iv extreme board with temp sensors that came with the board and these are going to be used to display/monitor temps.
I have soo much airflow in my case that i will not really be worried about the temps of the heatsinks,but that is something others can set up to quell any worries.
system will shut down through the software for the T balancer big NG,this is a good unit and a good failsafe.
 
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