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Hi there!

post #1 of 10
Thread Starter 
Hey guys I'm new to this forum
I've read a lot of posts here and it's awesome to see great TEC stuff and learn from you guys.
BTW, I'm building a 4 TEC chiller and controller from scratch, and I would like to know your opinion... I will upload some pictures soon.


One funny image for everyone:
This was after I took my i7 920's IHS off, I thought about put everything back.

picture.php?albumid=4887&pictureid=26410
Obsidian
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Obsidian
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post #2 of 10
Welcome to ocn biggrin.gif
post #3 of 10
Welcome, hope we here can help you with any questions you have. Also... Coulda been worth a try to salvage you i7 lmao
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post #4 of 10
Welcome,

Sounds like a big project.. I'd like to ask a few questions on your build:

1. what are you planning to cool with your chiller?

2. what kind of temps are you looking for?

3. what radiators are you planning to cool your chiller with?

4. what are you going to use for a power supply?

5. what tecs are you going to be using for this build?

6. what are you going to be using your controller for?
post #5 of 10
Thread Starter 
Thank you guys!
Quote:
Originally Posted by Mïndçhì|l;14240237 
Welcome,

Sounds like a big project.. I'd like to ask a few questions on your build:

1. what are you planning to cool with your chiller?

2. what kind of temps are you looking for?

3. what radiators are you planning to cool your chiller with?

4. what are you going to use for a power supply?

5. what tecs are you going to be using for this build?

6. what are you going to be using your controller for?

You do raise some important questions. I always had these in mind and just recently straightened out most of them. But as I proceed, I constantly meet unexpected problems, and some are quite tough ....Yes, it is bigger than I thought as soon as I started it. I will have so much fun solving them drum.gif

1. I'm planning to cool the CPU and possibly the power modules around the cpu. I want to make it future proof for the next generation socket 2011 processors

2. My target is to keep the cold loop water temp right above the dew point (10-20C in normal condition, lower in winter), cause I don't like to mess with coating and grease. The actual cpu temp will be determined by the heat resistance between the cpu waterblock and the die, also the cooling around the cpu sockets.

3. I'm using a xspc RX360. I read some test, it should move more than 600W with a delta-T of 10C.

4. I'm trying to build everything inside a 800D case. So the 4 TECs will run off a >1000W power supply with a controller. I will try to limit the voltage so that the TECs don't draw more than 350W of power. My current power supply has 83A on 12V, it's a single rail system.

5. I plan to use those 400W ebay TEC (CP1-12726)

6. I will build the controller with a microprocessor than can be programmed by USB, with a few PWM controlled Mosfet. My plan to have a 16x2 LCD module showing the dew point, cold and hot loop temperature, and a IR remote to control the settings. Long way to go...I know

I have read one of your build, and it is amazing! I could learn quite a lot from you.
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Obsidian
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post #6 of 10
Thread Starter 
Quote:
Originally Posted by Krow;14237092 
Welcome, hope we here can help you with any questions you have. Also... Coulda been worth a try to salvage you i7 lmao

Haha, I tried but it didn't work out, I lost some of the capacitors too...

I picked up a i7 960 from microcenter, cheap at $179. I knew it before I blow my i7 920. The second try was a success:D
Obsidian
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Obsidian
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MCP 35X pump Swiftech Apogee XT waterblock Foxrena's Water Rack KOC TEC and Fan controller 
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KOC 62mm TEC block Windows 7 Ultimate Dell UltraSharp IPS 27'' 2560x1440 Razor Black Widow Ultimate 
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post #7 of 10
Quote:
Originally Posted by foxrena;14241842 
Thank you guys!



You do raise some important questions. I always had these in mind and just recently straightened out most of them. But as I proceed, I constantly meet unexpected problems, and some are quite tough ....Yes, it is bigger than I thought as soon as I started it. I will have so much fun solving them drum.gif

1. I'm planning to cool the CPU and possibly the power modules around the cpu. I want to make it future proof for the next generation socket 2011 processors

2. My target is to keep the cold loop water temp right above the dew point (10-20C in normal condition, lower in winter), cause I don't like to mess with coating and grease. The actual cpu temp will be determined by the heat resistance between the cpu waterblock and the die, also the cooling around the cpu sockets.

3. I'm using a xspc RX360. I read some test, it should move more than 600W with a delta-T of 10C.

4. I'm trying to build everything inside a 800D case. So the 4 TECs will run off a >1000W power supply with a controller. I will try to limit the voltage so that the TECs don't draw more than 350W of power. My current power supply has 83A on 12V, it's a single rail system.

5. I plan to use those 400W ebay TEC (CP1-12726)

6. I will build the controller with a microprocessor than can be programmed by USB, with a few PWM controlled Mosfet. My plan to have a 16x2 LCD module showing the dew point, cold and hot loop temperature, and a IR remote to control the settings. Long way to go...I know

I have read one of your build, and it is amazing! I could learn quite a lot from you.

Sounds like your on the right track.

One BIG thing I might suggest changing is your TEC selection. I've run the 12726 or similar, and they run better at 8-9volts.. @12v you end up running a bunch of waste heat into your hotside loop, and as you are aware temps go up linear to your thermal resistant coefficient.

I built a chiller namely my 3x50mm with those tecs at 24v in series putting each tec at 8v.. This gave me my best temps. * thats the main reason I went with 3 tecs instead of 4 tecs on that build.

If you want to run 12v I suggest you use 199 couple tecs, CTE makes these in a 40mm and 62mm format. Unfortunately I can't find any in 50mm. These run very very efficient at 12volt.
Edited by Mindchi|l - 7/19/11 at 10:38am
post #8 of 10
Thread Starter 
Quote:
Originally Posted by Mïndçhì|l;14270482 
Sounds like your on the right track.

One BIG thing I might suggest changing is your TEC selection. I've run the 12726 or similar, and they run better at 8-9volts.. @12v you end up running a bunch of waste heat into your hotside loop, and as you are aware temps go up linear to your thermal resistant coefficient.

I built a chiller namely my 3x50mm with those tecs at 24v in series putting each tec at 8v.. This gave me my best temps. * thats the main reason I went with 3 tecs instead of 4 tecs on that build.

If you want to run 12v I suggest you use 199 couple tecs, CTE makes these in a 40mm and 62mm format. Unfortunately I can't find any in 50mm. These run very very efficient at 12volt.

3TEC searial in 24V, 8V each. That's a good sweet spot. It's a pity I don't have a dedicated 24V power in my case. I would do (1+1)//(1+1) if I have one.

I'm aware of the problem you mentioned. I used Ultrasonic2's TEC calculator to figure out the optimal number of TECs, with the goal of achieving better COP. 3 TEC is good for the current generation CPUs. I just want to make my system future proof by going with 4 TECs. It may be overkill though. I don't have confidence on my fabrication skills. The efficiency may not be as good as the system you guys build.

The controller I have in mind will limit the TEC voltage under 7-7.5V, using a bout 350W of electricity and transfer it to the water (about 7 degrees C delta). I'm sure my PSU fuse will break I bump up the voltage too high.

I can see that you know a lot about TEC systems. It's great to discuss these technical details with someone having the same interest smile.gif
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Obsidian
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OCZ RevoDrive3 X2 OCZ Vertex 4 WD 640GB  Swiftech 360 Radiator 
CoolingCoolingCoolingCooling
MCP 35X pump Swiftech Apogee XT waterblock Foxrena's Water Rack KOC TEC and Fan controller 
CoolingOSMonitorKeyboard
KOC 62mm TEC block Windows 7 Ultimate Dell UltraSharp IPS 27'' 2560x1440 Razor Black Widow Ultimate 
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post #9 of 10
Welcome, hope we here can help you with any questions you have. Also... Coulda been worth a try to salvage you i7 lmao

g.gif
post #10 of 10
lol... this thead is 6 months old tongue.gif (and in the wrong section tongue.gif)
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