TEC for E6850

[Spacemaster]

Ok I am new in this, and i am not total nob, so this is my system nad my question.
MB : ASUS P5K DLX
CPU : E6850 st. GO
Mem Geul ultra 1000 Cl

So i expected 4GHz at 1.56V (max 150W) , because at 1.56V at water this CPU is stable at 3.87GHz, and temp of 65C at full load.
What to by, what is best choice for my expectation?
Thanks in advance
:)

[AliG]

Before you do anything, check out this sticky
http://www.xtremesystems.org/forums/showthread.php?t=38367
That should answer the majority of your questions. But in case it doesn't, I'd say just to be safe, a 245w potter tec, a meanwell auxiliary psu (or any other one that has at least 320w and a 24v rail), a cold copper plate, and be sure to insulate;)

hope this helps

[Spacemaster]

Before you do anything, check out this sticky
http://www.xtremesystems.org/forums/showthread.php?t=38367
That should answer the majority of your questions. But in case it doesn't, I'd say just to be safe, a 245w potter tec, a meanwell auxiliary psu (or any other one that has at least 320w and a 24v rail), a cold copper plate, and be sure to insulate;)

hope this helps
I read that thanks :)

But 245W for dual CPU that costume max 150W :confused: is that peltier to much powerfull for that CPU?
I want
5-10C idle
and 15-25C full load
I dont want subzero temp, so one 180W-200W pelt are not god, and I can not use my CM Real power M1000W for pelt?
Is there any pictures or tutorial of insulation, I did search but no help.
Thanks in advanced

[Duh]

here you go
http://www.xtremesystems.org/forums/showthread.php?t=105834

[Holst]

I read that thanks :)

But 245W for dual CPU that costume max 150W :confused: is that peltier to much powerfull for that CPU?
I want
5-10C idle
and 15-25C full load
I dont want subzero temp, so one 180W-200W pelt are not god, and I can not use my CM Real power M1000W for pelt?
Is there any pictures or tutorial of insulation, I did search but no help.
Thanks in advanced

What you want to acheive is no possible with TEC.

To acheive 25*C load you will need a TEC of at LEAST 225watt (Qmax) probably bigger.
Then your idle temps will be well below ambient.

Please read the stickies, I dont think you quite understand how TEC works and what Qmax means.

Using a PC PSU on a TEC is generally a bad idea. Using the same PSU as you are using to power your PC is impossible (unless TEC is very small)

[Spacemaster]

Ok I decide to bay this tec http://cgi.ebay.com/Awesome-320-Watt-Thermoelectric-Peltier-Cooler_W0QQitemZ280123235212QQihZ018QQcategoryZ466 0QQrdZ1QQcmdZViewItem
and hold this baby at 11.5-12V so I have two more question, what PCU to bay and is this ok http://www.pcberza.co.yu/komponente/detail.php?id=33378, and can my water kit handle temperature of this peltier at full load

Max power that E6850 can use is 125W-130W at 4GHz and 1.58V, so is this components ok for this?

[elfy]

Delta T = (1 - (Heat Load/Max Cooling Power)) * Max Temp Difference
=1-(130/320)*69
=approx 40c theoretical maximum difference in temps

btw it doesn't say if the tec runs on 12/15 or 24volts so you'd need to find that out

[Spacemaster]

Delta T = (1 - (Heat Load/Max Cooling Power)) * Max Temp Difference
=1-(130/320)*69
=approx 40c theoretical maximum difference in temps

btw it doesn't say if the tec runs on 12/15 or 24volts so you'd need to find that out

Operates from 0-15 volts DC and 0-26 amps it say at the bottom of site :)

[Holst]

Remember that this is "really" a 245 watt TEC, using the standard convention that we rate the TEC at 0 delta T

The guy who sells these uses a different convention, which isnt wrong but is a bit misleading. One of the guys on procooling emailed him and asked and he admitted he was rating differently to others, hence the add saying 245-320 now.. still a bit unfair.
Personally I think is is just selling over volted 226watt 13v pelts..

You can tell this from the power consumption figures, 15x26 = 390
No way that a TEC with Qmax 350 will only use 390watts.. too efficent.

So using the formula elfy posted means you can expect slightly worse performance of 32.3*C delta T.

As for your other questions.

Those rads look excelent for TEC cooling, you might get better performance using shrouds, but you can tweak fans and stuff easily once you are up and running and know your water temps.

That PSU is NOT sufficent for this TEC.
You really need to give it the full 15v as its only just big enough to cope with your CPU.
Look for Ham radio PSU's on ebay, like a meanwell but usually allot cheaper.

What block are you planning on using?

[Spacemaster]

Remember that this is "really" a 245 watt TEC, using the standard convention that we rate the TEC at 0 delta T

The guy who sells these uses a different convention, which isnt wrong but is a bit misleading. One of the guys on procooling emailed him and asked and he admitted he was rating differently to others, hence the add saying 245-320 now.. still a bit unfair.
Personally I think is is just selling over volted 226watt 13v pelts..

You can tell this from the power consumption figures, 15x26 = 390
No way that a TEC with Qmax 350 will only use 390watts.. too efficent.

So using the formula elfy posted means you can expect slightly worse performance of 32.3*C delta T.

As for your other questions.

Those rads look excelent for TEC cooling, you might get better performance using shrouds, but you can tweak fans and stuff easily once you are up and running and know your water temps.

That PSU is NOT sufficent for this TEC.
You really need to give it the full 15v as its only just big enough to cope with your CPU.
Look for Ham radio PSU's on ebay, like a meanwell but usually allot cheaper.

What block are you planning on using?

The PSU is problem i cant get one with 15V, because in Serbia this is not posible. Water block is this http://www.alphacool.de/product_info.php/products_id/332/cPath/5_18_66_261/cpu-watercooler-socket-775-(inte/cpu-alphacool-nexxxos-xp-socket-775:.html
so at this moment i dont knew what to do.:( Onleu 12V PSU i can get here in my cantry, and after reading some posts i decide go give up :(
Thanks for helping

[Cronos]

Using 12V PSU is possible, but not efficient
Qmax at 12V will be 12/15.8 *245W=186W,
an power consumption will be (12/15.8)^2 *390W=224W.

Then load delta will be (1-130/186)*69=21C. This can give 10-15C improvement over plain water -under load.

[Spacemaster]

Using 12V PSU is possible, but not efficient
Qmax at 12V will be 12/15.8 *245W=186W,
an power consumption will be (12/15.8)^2 *390W=224W.

Then load delta will be (1-130/186)*69=21C. This can give 10-15C improvement over plain water -under load.

Ok i will try with 12V PSU, if dont work ok no meter :)

[Holst]

You can definately get a 15v PSU in serbia, you will just have to search around shops for one.

If all you can find is a PC PSU then you can probably adjust the voltage a bit higher than 12v anyway. Although this might put extra stress on the PSU.

I think with that waterblock and only a 12V PSU you will not get great performance with your CPU.
As you can see by reading L33T's recent thread TEC will only work when every component is right.