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post #31 of 49
then quote him as well, don't take it all out on me.


And the "two-year-old" comment was just rude. You want to start a flamewar, you're all set with that comment.
    
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post #32 of 49
Quote:
Originally Posted by SentryOptic View Post
what coolant?
I used Primo-Chill ICE
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post #33 of 49
iv been using my koolance liqued cooling for over a year...been using valve spring water.....on my new setup will use distilled water....

working fine soo far
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post #34 of 49
Quote:
Originally Posted by McStuff View Post
Umm, aluminum and copper will cause galvanic corrosion in distilled water. If you add and anti-corrosion agent like pentosin g11, you reduce the chance of corrosion. I would still not run aluminum tho.
Quote:
Originally Posted by RedRaider View Post
How will it occur in "PURE DISTILLED WATER" ??? It's not actually corrosion thats occuring, it's electolisis ... It won't happen unless there is a conductor introduced into the "PURE DISTILLED WATER."

FYI, I dang sure would never use ALUMINUM in my loop either ...
Man its a warzone in here. I used a handcap to dodge all the crossfire midway . (scroll) . Anyway... I never have used a Koolance product before, but did consider it before even building my custom loop back when I joined, but the idea never scared me because of the fact that you can use pentosin G11 an anti-corrosion agent + coolant type deal there as stated by McStuff, and like RedRaider said above you would need a current of electricity to charge the particals making contact with the aluminum an that inturn creates your galvanic corrosion. So yeah unless your going to run electricity through your loop, then you can kiss your Rig goodbye, sianara, arevaduchie, asta la vista baby. Plus for the sake of argument build your own loop. You'll save more money, and feel better because you build it with your own two hands and that my friend make you feel all warm and fuzzy inside.
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post #35 of 49
Quote:
Originally Posted by Xx_xBLADEx_xX View Post
Man its a warzone in here. I used a handcap to dodge all the crossfire midway . (scroll) . Anyway... I never have used a Koolance product before, but did consider it before even building my custom loop back when I joined, but the idea never scared me because of the fact that you can use pentosin G11 an anti-corrosion agent + coolant type deal there as stated by McStuff, and like RedRaider said above you would need a current of electricity to charge the particals making contact with the aluminum an that inturn creates your galvanic corrosion. So yeah unless your going to run electricity through your loop, then you can kiss your Rig goodbye, sianara, arevaduchie, asta la vista baby. Plus for the sake of argument build your own loop. You'll save more money, and feel better because you build it with your own two hands and that my friend make you feel all warm and fuzzy inside.

The particles themselves become charged, that is the current necessary to cause the galvanic corrosion.
    
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post #36 of 49
Quote:
Originally Posted by SentryOptic View Post
absolutely

Every loop has some amount of galvanic corrosion; I wouldn't know from experience, since I've never watercooled, but when you mix ANY two dissimilar metals together, you will get galvanic corrosion. The rates differ, though. The problem with Koolance is that they use blocks of un-electroplated nickel and copper, which is why stuff with Koolance in it tends to suffer so badly from galvanic corrosion. Your barbs are electroplated . In essence, they are "protected", so to speak. That isn't to say that the nickel is completely sealed, because there will still be some corrosion; however, with something as small as the barbs in the loop (as opposed to the water block itself), the rate of corrosion is small.
Very true. However koolance already learned that already. when there products used nothing but engineering resign and gold. They only dissimilar metal in the loop in an all koolance system is the radiator. They have never really liked exposed copper due to the rate (even with water additives of every and any kind) that it oxidizes. Thats why every part of the blocks they now offer are plated. The only exposed metal in the loop is nickle (not including the radiator).

Does everyone think that the people who run these companies don't have forum trolls to watch peoples reactions to there products? Why do you think koolance stopped using aluminum in there new gpu blocks, and switched to acetel? Why do you think they switched to brass in there barbs and motherboard/cpu blocks? Why do you think they stopped plating with gold? Gold is cheap to plate with, cheaper than nickel. When everyone offers feedback instead of flaming things get done.

Nearly everyone that has somthing to say about koolance blocks compalins that they restrict flow. Correct me if im wrong, but doesn't having a large amount of surface area in a water block remove heat faster? And a large amount of surface area would result in less flow?
So, Less surface area(restriction)= More flow but worse temps
But, More surface area= less flow but better temps...

A perfect example follows in these two pics.



And personally they have a very new very sleek style


Look at the speed that DD and D-tek move during the development of a new water block. Compare it to the speed that koolance moves. Koolance moves considerable faster then both of them combined. And there products don't perform bad as a result. personally i have never seen another block hold a 4ghz q66 with delta t of 12c at 58c max on all 4 cores. Unfortuneatly since they stopped offering torque screws people really dont use enough pressure when mounting the block.

But don't take my word for it, take it from Xtremesystems. Which up until now has been the hardest on koolance for the use of aluminum. http://www.xtremesystems.com/modules...wcontent&id=56
Edited by Blue_Fire - 6/1/08 at 11:37pm
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post #37 of 49
I"m over Koolance bashing. If you want to use their stuff go ahead. The company are really making some headways and have several all copper blocks out there.
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post #38 of 49
Quote:
Originally Posted by Blue_Fire View Post
Very true. However koolance already learned that already. when there products used nothing but engineering resign and gold. They only dissimilar metal in the loop in an all koolance system is the radiator. They have never really liked exposed copper due to the rate (even with water additives of every and any kind) that it oxidizes. Thats why every part of the blocks they now offer are plated. The only exposed metal in the loop is nickle (not including the radiator).

Does everyone think that the people who run these companies don't have forum trolls to watch peoples reactions to there products? Why do you think koolance stopped using aluminum in there new gpu blocks, and switched to acetel? Why do you think they switched to brass in there barbs and motherboard/cpu blocks? Why do you think they stopped plating with gold? Gold is cheap to plate with, cheaper than nickel. When everyone offers feedback instead of flaming things get done.

Nearly everyone that has somthing to say about koolance blocks compalins that they restrict flow. Correct me if im wrong, but doesn't having a large amount of surface area in a water block remove heat faster? And a large amount of surface area would result in less flow?
So, Less surface area(restriction)= More flow but worse temps
But, More surface area= less flow but better temps...

A perfect example follows in these two pics.



And personally they have a very new very sleek style


Look at the speed that DD and D-tek move during the development of a new water block. Compare it to the speed that koolance moves. Koolance moves considerable faster then both of them combined. And there products don't perform bad as a result. personally i have never seen another block hold a 4ghz q66 with delta t of 12c at 58c max on all 4 cores. Unfortuneatly since they stopped offering torque screws people really dont use enough pressure when mounting the block.

But don't take my word for it, take it from Xtremesystems. Which up until now has been the hardest on koolance for the use of aluminum. http://www.xtremesystems.com/modules...wcontent&id=56
You call that a review article. Koolance beats a stock HS at 3.0GHz on a QX9650. Really who saw that coming.

As far as plating. Trust me there will be imperfections in the plating no matter how good the QA. Or heck some idiot like me will scratch it, or the barbs remove some plating. Then that cheap aluminum radiator, and its aluminum because it is cheaper to make, will start eating parts.

If you enjoy your Koollance loop, great! Don't extol their virtues until they make a rad which is worth owning.
    
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post #39 of 49
if you use a copper rad with it, a koolance system isnt half bad.
post #40 of 49
Koolance is making improvements to their blocks by going to full copper, however it should still be noted that Galvanic Corrosion is still an issue with some of their products.

Quote:
In a cooling loop, metallic materials in electrochemical contact can form a galvanic cell, or battery. In a galvanic cell, when two metals with different electrical potentials are connected, there is a potential difference across them. The metal with the higher electrical potential becomes the anode, and the lower, the cathode. A current will flow from the anode to the cathode. The anode dissolves, or corrodes, to form ions. These ions drift into the water where they either stay in solution or react with other ions in the electrolyte. This process is known as galvanic corrosion.

A high potential of 1.645 volts will be set up between Copper ( -0.345 ) and Aluminum ( +1.30 )

A galvanic cell requires three elements:

* Two electrochemically dissimilar metals,
* An electrically conductive path between the two metals, and
* An electrolyte to allow the flow of metal ions.

In a typical liquid cooling circuit, the plumbing provides the electrically conductive path, and the aqueous coolant provides the electrolyte. In the copper/aluminum scenario mentioned above, the aluminum is the anode, the copper is the cathode and the cooling fluid is the electrolyte. Over time, the aluminum corrodes as it dissolves into the water.

Elevated temperatures, which are likely in cooling loops, accelerate galvanic corrosion. A 10°C increase in temperature can approximately double the corrosion rate. Corrosion inhibitors can be added to the cooling water. This reduces, but does not eliminate, galvanic corrosion. Corrosion inhibitors bind with the ions in solution to neutralize them. The inhibitors are consumed in this process so they need replacing regularly. Non-aqueous coolants, such as oils, eliminate galvanic corrosion because they do not support ions. However, thermal performance is sacrificed, as the thermal conductivities of heat transfer oils are generally significantly lower than water-based coolants.

To avoid galvanic corrosion, we highly recommend using the same materials, or materials with similar electrical potential, throughout your cooling loop. You should ensure that the plumbing, connectors and other components do not introduce a reactive metal into the system.
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