First. we've seen many watercoolers go wrong. High temps, unstable design and worst of all, catastrophic failure. Ive researched these designs extensivly on my quest to make a better design.

Questions:
will a 120watt peltier controlled watercooled cool a dual core opteron
how will high load effect the watercoolers ability to cool the water
Once the temp gets high will it stay there?

Concerns: simplicity, efficiency, function

To meet these demands I choose a 12v 120 watt peltier, in an attempt to run it with my Pc power and cooler 510-SLI ( still to be attempted)
for simplicity Ive also opt'd to build the peltier in an already essential watercooling component, The resevior. I designed it so that an internal heatsink would distribute the cold sides BTUs into the water as it passes threw the resevior. Hot side would be cooled externally of the resivior by a standard processor style heatsink the same a processor would be cooled.

For the water cooler I used a single bay res from frozen cpu, a 120 watt peltier from frys, a copper socket 478 heatsink also from frys, and some 45 minute all purpose epoxy found at most auto parts stores. it said it was liquid proof, and withstands pressure up to 3500psi... sounds pretty damn good to me.

I cut a perfect square hole into the top of the res, glued the heatsink into place with the epoxy, and sealed the top with the excess epoxy for added protection. I then glued the peltier to the internal heatsink with Arctic silver thermal epoxy...





the test setup I purchased arguably the best waterblock on the market at the moment. the swiftech apogee. If anyone would beg to differ, id be willint to accept other blocks for extensive testing.

Test setup.

Dfi lanparty Ultra-d
opteron 170 0546xpmw
Ocz dr 4800 platinum edition 1gig dual channel
western digital raptor 74gig
Pc power and cooling 510-sli
Radeon x800gto2 flashed
custom built watercooler
300watt matx ps powering pelt (temporary, not enough watts for proper peltier function)
swiftech apogee waterblock
Via aqua power head model 1300 pump
stock amd heatsink cooling pelt (temprorary, waiting on cold plate to use Big typhoon)




lets explore this together for the next couple days. until then later...

I want to see results! After you try the res, try cooling the Rad.

120W eh, Hmm hopefully it wont freeze the water.

You might want to try a bigger heatsink for the pelt too, try a Socket 939 cooler (if you have one lying around..)

Is the pelt your only method of evacuating heat from your loop?

Yes. its ran 1.55v with the cpu at 2.8ghz for 4 hours now. so far ive only picked up 3c off my intitial temp when I first started it up. idle was 26c. Im going to start at stock speed and volts now and work my way up.. loaded and idle. See what happens.

So basically you've moved the stock heatsink and added pump heat + pelt heat to it? The thermodynamics does not compute....

well somethings working right. stock volts stock speed Its been dropping from 24c to 18c steadily. I plan to run it anotehr couple hours and I will fully load it for another couple. then I will try again at 1.4v, and so on until I hit 1.55 v in incriments of .5v. Should be fun.

wait I dont think you fully understand what ive done.... the cold side is in the water.... water goes to cpu.. comes back to watercooler..... remember, the hot side of a peltier can run safely alot hotter than a cpu, while still pulling cold to the opposite side.

First pic of many

Fully loaded dual folding for an hour and a half

Is it Chilly in here?


Sweeeet work Ace

over night at 2.7ghz w/ 1/45v a core. its reached the ultimate idle temperature of 16c. Now I will go to work and fully load it, and record the ultimate load temperature using folding at home.

I changed the heatsink on the peltier to a coolermaster sussuro with a 120mm fan and adapter.

ACE 123 nice job,A while back I was thinking of very similar idea.Everyone said it would not be worth it.However you proved otherwise.You cut the resy and glued cold side of Pelty into opening made?Nice I played with my 122watt pelt and good socket A cooler.It stayed cold as long as it was on!One day I am try again when I have time and finished other projects already started.Jo

I had a similar idea for a water chiller with a second water loop cooling the hot side. The reason it was abandoned was due to the large amount of tubing which will need to be insulated (the entire cold loop) and the possability of the cold loop freezing. Although it's a unique idea, there really is no practical reason not to have the pelt in direct contact with the cpu. *shrug*

Fully loaded at that speed for 10 hours yeilded an ultimate temperature of 40c. Big typhoon eat your heart out. Now we'll try some extreame voltage tests to find out how thermal load effects the watercooler.

Whats up with the case temp? 42C is high in my book.. Nice job though, try cooling the rad next!