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1 TEC chilled water cooling

post #1 of 25
Thread Starter 
Hey guys, just want to share with you my first try on TEC. I know it is quite primitive compared with the amazing stuff seen here. But it is still a TEC cooler ....

The cold loop is in blue and the hot loop is in red. One TEC (CP1-12726 Ebay) is obviously not enough, but at least it lowed the temperature quite a bit, especially at idle. The cold loop radiator (140mm black ice high flow) is used to keep the cold loop temperature above dew point. The fan is set at 600 rpm.
Edit: The hot loop is cooled with xspc RX360 radiator with stock fan at ~1500rpm.

Testing Results:
(i7 960 4GHz, 1.32V)
Cold loop water temp: 19C idle, 30 load
CPU Core (by Real Temp): 27C idle, 63C load prime95
CPU temp: 30 idle, 49 load
ambient is around 27-29C






Edited by foxrena - 7/17/11 at 7:01pm
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post #2 of 25
looks pretty effective, are you powering the TECs off the comp PSU?
    
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post #3 of 25
Thread Starter 
Quote:
Originally Posted by Crabid View Post
looks pretty effective, are you powering the TECs off the comp PSU?
It is effective with little load. When stressed the water temperature raises to 30C-ish and the performance is comparable to straight water cooling.

It is powered off the PSU, with a 6 pin pic-e connector, uses about 250W power.
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post #4 of 25
so was this worth the investment? 2 water blocks and a tec is pretty pricey
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post #5 of 25
Quote:
Originally Posted by foxrena View Post
It is effective with little load. When stressed the water temperature raises to 30C-ish and the performance is comparable to straight water cooling.

It is powered off the PSU, with a 6 pin pic-e connector, uses about 250W power.
Thats how effective peltiers are... srsly
    
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post #6 of 25
Thread Starter 
Quote:
Originally Posted by elikim View Post
so was this worth the investment? 2 water blocks and a tec is pretty pricey
2 swiftech xt = $150
additonal pump+reservoir = $100
additional radiator = $40
TEC = $25
Total ~ $315 + time

You are right it's not quite worth it, in some sense. I'm building a 4 TEC chiller, and I found it costs much more. I guess TEC stuff never justify their cost... You can see much crazier things, people don't really care about the cost or time when come to extreme cooling, just have fun

In the end I could sell those swiftech xt.
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post #7 of 25
Why do you have the cold loop running through a radiator after it hits the cold TEC? Isn't that just warming the cool water back up towards room temp? Why not have it run through the radiator before it gets to the TEC that way it is close to room temp before it hits the TEC?

Radiators work both ways. If the water is colder than room temp when it enters the radiator the radiator will warm the water.

Or maybe I'm not understanding your loop correctly...
    
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post #8 of 25
That looks pretty cool.

It might have the same load temps as regular water cooling but with 600rpm fans its probably dead silent.
    
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post #9 of 25
Thread Starter 
Quote:
Originally Posted by Epitope View Post
Why do you have the cold loop running through a radiator after it hits the cold TEC? Isn't that just warming the cool water back up towards room temp? Why not have it run through the radiator before it gets to the TEC that way it is close to room temp before it hits the TEC?

Radiators work both ways. If the water is colder than room temp when it enters the radiator the radiator will warm the water.

Or maybe I'm not understanding your loop correctly...
You are totally right, the radiator is intended to warm the cold loop water. Because I don't want condensation. The dew temperature at my place is around 17-20C these days. The fan on the radiator is set at 600 RPM to have the water warmed up to that temperature.

The radiator also acts like a cold air blower into the case, so the coldness is not wasted.
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post #10 of 25
Quote:
Originally Posted by foxrena View Post
You are totally right, the radiator is intended to warm the cold loop water. Because I don't want condensation. The dew temperature at my place is around 17-20C these days. The fan on the radiator is set at 600 RPM to have the water warmed up to that temperature.

The radiator also acts like a cold air blower into the case, so the coldness is not wasted.
I love this idea... cold air in the case plus cold water for the cpu. That's freakin great thinking.
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