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Looking for TEC for ram

post #1 of 11
Thread Starter 
I know it's not necessary, but I'm looking to squeeze the extra 2 or so mhz I can out of what I have, and I'm willing to go to this extreme to get it.

Any suggestions on where to get some or build my own if I can't just purchase some?
post #2 of 11
Id just get Thermalright's ram heatsinks and leave it at that. There isnt enough gain to prove the massive cost it will take to get TECs that small, power them, and cool them for the 20 or so extra mhz youll get.
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post #3 of 11
Agreed....

You would be better off getting a new kit of RAM.

You would need a bunch of small TECs, a cold plate, and heatsink/block. There probably isn't enough cleareance between DIMMs. If you really want to cool your RAM, get a waterblock?
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post #4 of 11
Getting tecs that small and with clearance issues it isn't really feasible to go that route. I would say if you are looking to get the last few mhz out of them for a bench or something you could do one of two things. Add a heatexchanger and build a chiller loop with dry ice or ice for limited runs and still maintain a liquid cooled ram loop for normal use. Or go straight for it and submerge the rad in a cooler of dry ice or icy water. Only downside to that is if you have fans on the rad they would need to be removed beforehand and the rad couldn't be permanently mounted. Obviously the cheaper route is straight rad and some long hose. That will get you pretty cool. Just got to manage condensation which if you used a tec you would need to do anyways.

Also make sure your coolant is up to the task of cold temps.

Gl with your oc'ing.
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post #5 of 11
It wouldn't be that hard to do this tbh, and considering ram doesn't exactly throw out a lot of heat you wouldn't really need a powerful TEC.

If I was going to do this, I wouldn't actually place the TEC on the side of the ram at all, I'd buy a ram heatspreaders that were compatible with a ram waterblock and then also buy a copper heatspreader that was the same dimensions as the waterblock. Then I'd sandwich the TEC between the waterblock and the copper heatspreader and mount that on the ram heatspreaders where the waterblock would normally mount.

ie. exactly how Corsair was going to do it back in 2009:


You could replicate the above setup using a MIPS ram liquid cooling block setup, and using a copper heatspreader that sat on the ram modules and the TEC between the copper heat spreader and the MIPS waterblock. You'd also have to find longer screws to mount the MIPS waterblock to the ram modules - but it could be done fairly easily.

And as I said, RAM doesn't exactly put out that much heat, last time I checked, DDR3 ram averaged around 1W per 1GB. So if you used 2x 2GB modules, that's only 4W. Taking into acount extra voltage needed for higher ram speeds and you might be lucky to hit 10W. And for 10W heat load, you wouldn't need the most powerful TEC in the world at all, you could even get away with a much smaller and lower rated TEC.

To give you an idea, if you used THIS TEC from CTE, which is a 40mm TEC and rated at 44W@24V/3A, and than ran it at only 12V - then with a ram heatload of 10W, and keeping the TEC hotside to 35C, the TEC would have a coldside temp of around -2C

And at 12V, that TEC would only consume approx 1.5A, so it could be run from a single molex from your PC PSU.

And if you wanted a lower TEC coldside, then you could use THIS TEC and at the same 10W heatload and again running it at 12v, the TEC coldside would be around -6C
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post #6 of 11
Now I know there's no such thing as "overkill" here on overclock.net, but using TEC's with a direct RAM block!!

I would consider using a TEC waterchiller, however preparing RAM for sub-dew conditions would be a real pain, and I don't think the performance gain would be worth the hassle.
post #7 of 11
Yeah just saying its a really pretty horrible idea. For the same price and infinitely less effort, you can just get new ram. It would be far more effective as well.
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post #8 of 11
That is Corsair's T30 upstairs(#5). It was discontinued due to manufacturing problem. I think it was only put to sales for a brief time and so finding an used one is not easy. But if you can find one, this might be a good idea to squeeze those very last MHz out.

Here is a review:
http://www.legitreviews.com/article/1106/6/
post #9 of 11
Quote:
Originally Posted by windfire View Post
That is Corsair's T30 upstairs(#5). It was discontinued due to manufacturing problem. I think it was only put to sales for a brief time and so finding an used one is not easy. But if you can find one, this might be a good idea to squeeze those very last MHz out.

Here is a review:
http://www.legitreviews.com/article/1106/6/
this would be pretty easy to replecate!
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post #10 of 11
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
Agreed....

You would be better off getting a new kit of RAM....
I've already got some of the best ram available for this setup. Getting a new kit is impossible since it's 168 pin SDRAM. I'm just crazy like that and I'm pushing super old hardware to it's breaking point. As for cooling, clearance, etc, I don't want to take the ram sub-zero as condensation would be an issue I don't wish to deal with, so low power tecs are fine for me, or as someone brought up, even chilled water would suffice in this instance, and would probably work just as well and be less hassle.
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