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Archimedes block install, Cooling upgrade for "Behemoth" - Page 3

post #21 of 125
Quote:
Originally Posted by toolmaker03 View Post

well after looking over the specs of the different types of TEC's the only real difference between standard TEC's and the nitride TEC's is the reliability of the TEC's. so, for example, if a standard TEC has a duty life span of 10,000 hours, than the nitride TEC will have a duty life span of 100,000 hours. so, the difference in price, is for the extended life span of the TEC. the same thing applies to vacuum pumps, the more expensive the vacuum pump, the longer it should be expected to run.

So no performance gain? I thought higher thermal conductivity helps performance, since the pellets are what generate temperature difference, and ceramics plates are just there as an insulator and hold pellets together. This is also new to me. I need to do some research.
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post #22 of 125
Quote:
Originally Posted by foxrena View Post

So no performance gain? I thought higher thermal conductivity helps performance, since the pellets are what generate temperature difference, and ceramics plates are just there as an insulator and hold pellets together. This is also new to me. I need to do some research.

maybe a little, I have 12715 TEC's from 3 different manufactures, and all of them preform at about the same level at the same AMP draw. the more expensive TEC's are a little better, 1C to 2C greater delta T at the same AMP draw, but it is nothing to wright home about. with the nitride TEC's, is seems like they have the same kind of gains, where a standard TEC would have a 68C delta T, the nitride has a 70C delta T, and it might get a little better transfer of that delta T. for example, the best transfer of delta T that I have got with my TEC's, is a 65C, so, maybe the nitride can deliver a transfer delta T of 69C.
Edited by toolmaker03 - 6/7/16 at 7:36pm
post #23 of 125
the TEHC tecs are the ones with the better delta, regardless of AIN or AIO, they are made from better pellets/ingots. AIN is 10x more thermally conductive than AIO, so heat transfer through teh whole tec should be more efficient, ie greater delta at same voltage, or cooler hotside due to better heat transfer to the waterblock through the AIN allowing you to run less voltage/duty cycle for same cold side temp, should be just generally higher performing and more efficient, just not sure by how much.

C200 tinning/solder is also a possible improvement.
Edited by LiamG6 - 6/7/16 at 9:32pm
post #24 of 125
Thread Starter 
Quote:
Originally Posted by LiamG6 View Post

The 18awg leads get slightly warm at constant 12v. Should be ok at up to 14v but keep some air around them to be safe, airflow on them even better.

If anyone can test a nitrided TEC please share the results, I wanted to but the extra cost from thermonamic was ridiculous and they couldn't really tell me how much better it was even with the ~10x higher thermal conductivity compared to AIO. nitriding cost 200% more than the TEC if only buying 1 tec. 1 fully specced TEHC19940 from thermonamic with AIN and C200 solder and lapped was USD$450+shipping. Maybe they will quote less if you can order in Cantonese/Mandarin, not sure though.

great to see some action in the TEC threads again.

It's a nice block Puck, 2 D5's or 2 DDC's is plenty of pumping power depending on how much is in your loop. I got 1.7-8gpm with 3 rads and 2 MCW80 gpu blocks in parallel and a AQ5 mosfet block and mobo mosfet block and a flow sensor.

Temps were good at 12v, should be perfect at 14v.

The TEC loop is just the block, res, and two gen2 GTX480 rads. Have a third 480, a Nemesis GTX480, in a closet I was going to add when I had the chillers (since there was an extra 300w of heat in the loop and the hot side loop temps were higher), but without the chillers I don't need it smile.gif.

(edit:quoted wrong post)
Edited by Puck - 6/8/16 at 6:37am
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post #25 of 125
Quote:
Originally Posted by LiamG6 View Post

the TEHC tecs are the ones with the better delta, regardless of AIN or AIO, they are made from better pellets/ingots. AIN is 10x more thermally conductive than AIO, so heat transfer through teh whole tec should be more efficient, ie greater delta at same voltage, or cooler hotside due to better heat transfer to the waterblock through the AIN allowing you to run less voltage/duty cycle for same cold side temp, should be just generally higher performing and more efficient, just not sure by how much.

C200 tinning/solder is also a possible improvement.

I think that's the big win with AlN, better movement of heat out of the hot side of the pellets and into the water block. There should also be better frequency response in the control loop ... less delay in information as the temperatures of the copper items change faster since the interface at the TEC conveys the heat at a higher rate.
post #26 of 125
That was my hope, just couldn't justify the cost of AlN, maybe when ZEN comes out I'll test one. Need to step up to about 15v though I think to get the best out of the 19940 at 100% CPU load
post #27 of 125
Thread Starter 
Been working on a couple other projects that I needed to finish so had to put this on the back burner. One is finished, the other was for a friend and just needs one more part to come in so I can finish it, and then back to my build.

Just need to splice a PCI connector the the block so it can plug in to my controller, finish insulating the block, and find a pair of 1/2" barbs in one of my PC junk drawers and I'm good to go.
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post #28 of 125
Thread Starter 
Also was planning out an adapter bracket in my head to possibly stick the current Arqtik block on an RX480 GPU instead of using the TEC chillers that will eventually be used for a pair of them biggrin.gif. The block is a heck of a lot easier to install then the chillers, which would need two loops, so I can go single RX480 w/TEC block for now then switch to the chillers when I throw a second one in there.
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Behemoth
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post #29 of 125
I think it's time for me to get my Archimedes block back on my 4670k. I've come to the conclusion that the issues I was having with my RAM was indeed a slightly bent pin that wasn't quite getting the right contact with the pad on my CPU due to the dielectric grease in the socket. Through months of running ram at 1600 and the heat cycling that goes with it, the pin has now got perfect contact again and I'm able to run XMP 2600 10-12-12 and beyond again. So, I need to crank this CPU core up a bit, plain water cooling is good for 4.8ghz, but beyond that it doesn't respond well to voltage, however when I had the TEC block on I was able to game and bench at 5.2ghz, stable at 5.1ghz. I'll leave the IHS on the CPU this time to avoid any issues with ram/pins etc.

I have also retested my TEC controller and it is indeed able to handle the 19940 TEC at 12v, I must have has a short somewhere before that was causing the controller to not work, I just assumed the 20a limit on it was causing an over current protection to come in, but it turns out there is no protection and it will run whatever you throw at it till it burns out, so I'm now able to handle the 12v 24a at startup before it settles down to 12v 18a at 100% CPU load with about a 25*c delta below ambient.
post #30 of 125
Thread Starter 
Quote:
Originally Posted by LiamG6 View Post

I think it's time for me to get my Archimedes block back on my 4670k. I've come to the conclusion that the issues I was having with my RAM was indeed a slightly bent pin that wasn't quite getting the right contact with the pad on my CPU due to the dielectric grease in the socket. Through months of running ram at 1600 and the heat cycling that goes with it, the pin has now got perfect contact again and I'm able to run XMP 2600 10-12-12 and beyond again. So, I need to crank this CPU core up a bit, plain water cooling is good for 4.8ghz, but beyond that it doesn't respond well to voltage, however when I had the TEC block on I was able to game and bench at 5.2ghz, stable at 5.1ghz. I'll leave the IHS on the CPU this time to avoid any issues with ram/pins etc.

I have also retested my TEC controller and it is indeed able to handle the 19940 TEC at 12v, I must have has a short somewhere before that was causing the controller to not work, I just assumed the 20a limit on it was causing an over current protection to come in, but it turns out there is no protection and it will run whatever you throw at it till it burns out, so I'm now able to handle the 12v 24a at startup before it settles down to 12v 18a at 100% CPU load with about a 25*c delta below ambient.

Nice! Cant wait to see results!
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Behemoth
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