I solved the issue altogether by solder on higher gauge wires :P I'll take a pic of my setup, its quite extravagant. I have it retired right now till nate finishes my hot plate.

I am at work till 7 (EST), it was at 18 AWG, I changed it to 16, heating worries went away. I don't have any math to back it up other then on prolonged use I seen the cables heating up beyond comfort, at this gauge I haven't experienced any problems. 

The aluminum shroud I had before, you could literally cook things on it.

JaskarnSidhu
Do you have you TEC's undervoltaged or all of them at full power? What are your temps like?

 
they run on a Coolit tec controller BUT :
 
Two blocks on boreas run 100% 24/7 and two blocks are controlled by controller.
The freezone V1 run @ 100% 24/7
The freezone Elite has one block on the controller and one block runs 100% 24/7.
 
so the coolit tec controller has only to do 3/8 blocks to controll.
 
Idle :


load :

the tec's under each block is still in serie, but all blocks are connected parallel yes.
 
But not all blocks (each block 3 peltier plates) are controlled by coolit controller.

in series tec uses less power, but more effectiveness.
That's why they use in parallel and series.
 
1tec of 200w will not cool so good as 4x tec of 50w in series.
 
Basic physica.
 
also the aircooled rad where the blocks are on need to be able to cool down those tec's even when they run at 4v.
 
And for extra info : i changed my ted's in better ones after extensive testing what that aircooled rad under the blocks can cool.
See my buildlog.
Stock they are all 75w tec peltier plates on coolit products
 

chillernr1

in series tec uses less power, but more effectiveness.
That's why they use in parallel and series.

1tec of 200w will not cool so good as 4x tec of 50w in series.

Basic physica.

also the aircooled rad where the blocks are on need to be able to cool down those tec's even when they run at 4v.

And for extra info : i changed my ted's in better ones after extensive testing what that aircooled rad under the blocks can cool.
See my buildlog.
Stock they are all 75w tec peltier plates on coolit products

Your picture didn't load for some reason or is broken. I would love to see your results. I hooked a multimeter to my Boreas TEC's and found thier Vmax and Imax that way.

I do agree that having more TEC's at lower power is better than one at a higher power, but what I was trying to understand was if you had your TEC's all at 100%. 3 TEC's at 3

1 5000Btu chiller > tec's
;o)

nateman_doo

1 5000Btu chiller > tec's
;o)

Haha, nate you silly =]

Growing a beard waiting for it to arrive...
 
Going to try out the GAROLITE material.  It looks very well suited for a hotside block.

Just a curious question for you all that have used or are currently using TEC's. What type of thermal compound/paste are you using on your TEC's? I'm using Arctic Silver ceramique but from the 2 different reviews I've read they've come out dead last.

creamique doesnt review as well for cpu blocks but on tecs it is highly recomended over the metalic types both in theory and performance.

ceramique is better as indigo yes, but there are others that are better then ceramique.
 
ceramique is not the best for tec there is, but it's cheap and non-conductive

ceramique is non-conductive, TEC works with electricity.

Can't put the pic in the right place its a big mess soz
Hi !

  I would like to share my view about thermal paste for TEC.  But my test may don't suit your needs.  
I do many experiences with TEC (I own 100 of them), and of course I had to decide which thermal grease I should use... so I checked the review and I see that AS5 is the #1 or #2.
So I bought a lot of AS to cover my needs

 
But the temperature that I obtained on the cold side with AS5 wasn't as best as before. I used for dummy test a low cost thermal grease, from dealextreme (soz about pic size):


dealextreme.com/p/professional-thermal-heat-sink-compound-with-injection-tube-30g-22510 
2.68$ for 30g, you will tell me that's sh1t... well I thought that at the beginning. 
I decided to make some test of thermal grease to know why I had less performance (1 or 2°C ) versus my low cost thermal grease :

 Setup : the hot side of a peltier is put on a waterblock The cold side face to the ceiling, and I put a thermal probe on it. The thermal grease used is either "DX" (dealextreme) or "AS5".  In the top right result, "glued" mean that I put 2 small point of glue to the corner of the peltier (always with thermal grease) so that the peltier don't move.
The top left result "2 pelts staked" mean that I put a 2nd pelt on the first (with another thermal grease layer) and I checked the final temperature on the cold side of the top one.
 
Conclusion :  Check the "Teau= temperature of water running in waterblock" and "Tair" : room temp. You will see that the result are similar or better for the low cost grease.
I did more test with DX grease because I didn't trust the result, but they are real !
Now I only use DX grease with my peltier setup, and I sold my 100$ AS5. I think that the difference lies in the viscosity : the DX grease is much more liquid and very easy to apply. The AS5 may need also a "cure time".
But I won't use DX grease with a CPU : this time, it will be some pressure on the thermal grease, so it will perform better. In my test, the peltiers were just put on the waterblock, there was no system to tight them to the waterblock (just gravity).
I checked also AS ceramique but I had too much poor performance, and it was a pain to apply (not liquid at all)