[Review]Test thermal grease on heat medium

Hi guys,

I completed the reviews for a seven thermal grease on accurate heat medium. The reviews, which is divided on two parts.

http://www.cttl.cz/clanky/highlander...Past/zaver.jpg

Test equipment
http://www.cttl.cz/clanky/highlander...ta_9normal.jpg

The Measured result for power 200W
http://www.cttl.cz/clanky/highlander...Past/graf1.png

More visit the links

http://www.cttl.cz/index.php?gid=11119

http://www.cttl.cz/index.php?gid=11136

Translated by Google:

http://translate.google.com/translat...%3Fgid%3D11119

http://translate.google.com/translat...%3Fgid%3D11136

Hmmm, it looks as if MX-3 didn't make it onto that graph?

ahoy Hgi:)
hmmm...no coollaboratory...no AS5...no indigo...no nanoxia...ic diamond
can you retest and post some of these plz---->
http://www.xtremesystems.org/forums/...pictureid=1207

never even herd of gelid gc-extreme = /

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Originally Posted by Johnny87au

never even herd of gelid gc-extreme = /

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Me neither. But it seemed to perform pretty awesome, and from what I can tell, the test method seems to be accurate. 3 seperate mounts should provide an accurate measurement. I'd like to try it out myself as well :D.

Looks like the manufacturer needs to update their site

I found it at PerformancePCS for $9.99 3.5G. Adding to my cart.
Per PCs

Wait a second, I just realised something, and please correct or slap me if I'm wrong, but how are the Delta T and the effectiveness of a thermal paste related? The delta is directly related to the amount of heat dumped into the system. If all parameters are the same, it means that with the Gelid less heats gets dumped into the system. That means more heat 'stays behind' in the CPU. Which would mean a higher CPU temperature.

I'll ask some other experts, but I'm pretty sure I'm right. Scgt1, you might want to wait buying one till I get some confirmation.

Isn't delta T a way to measure how hot the CPU must be before the thermal conductivity of the _CPU surface + thermal grease_ is high enough to "move" all the heat onto whatever cooling device you've mounted on the heatspreader? (not sure how accurate that is, but this isn't a physics forum so I don't care:D you get the idea )

Quote:

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Originally Posted by Johnny87au

never even herd of gelid gc-extreme = /

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Quote:

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Originally Posted by Alexandr0s

Me neither. But it seemed to perform pretty awesome, and from what I can tell, the test method seems to be accurate. 3 seperate mounts should provide an accurate measurement. I'd like to try it out myself as well :D.

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Quote:

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Originally Posted by Alexandr0s

Wait a second, I just realised something, and please correct or slap me if I'm wrong, but how are the Delta T and the effectiveness of a thermal paste related? The delta is directly related to the amount of heat dumped into the system. If all parameters are the same, it means that with the Gelid less heats gets dumped into the system. That means more heat 'stays behind' in the CPU. Which would mean a higher CPU temperature.

I'll ask some other experts, but I'm pretty sure I'm right. Scgt1, you might want to wait buying one till I get some confirmation.

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Yea that would be interesting to know although I have no idea what you really said other then it may be working against one whom wants to keep their gear cooler. LOL

Delta T is the temp difference between two (or more?) measured items. Problem is, it could be CPU/water, CPU/air, water/air, air in/air out, or whatever else you wish to measure.

I have some GC-Extreme here from when i was gonna do a thermal interface comparison, can't offer any insight as to how well it performs though since ive never tested it. Ran out of time and money when i was working on mine. I can say i've heard some good things about it, but thats about it.

His write up explains the Delta T as the temp difference of the 200w heat source and the incoming water temp. The higher the thermal conductivity of the paste, the lower temperature difference between your heat source and cooling medium is needed for a given heat flux. Assuming that contact area, heat source power output, and thickness of the paste are constant, deltaT times the thermal conductivity of the paste remains constant. As thermal conductivity of the paste increases, the deltaT required to move the heat decreases. In the graph, the low deltaT is better.:up:

Quote:

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Originally Posted by WarlockSix

His write up explains the Delta T as the temp difference of the 200w heat source and the incoming water temp. The higher the thermal conductivity of the paste, the lower temperature difference between your heat source and cooling medium is needed for a given heat flux. Assuming that contact area, heat source power output, and thickness of the paste are constant, deltaT times the thermal conductivity of the paste remains constant. As thermal conductivity of the paste increases, the deltaT required to move the heat decreases. In the graph, the low deltaT is better.:up:

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So in English the Gelid kicks ass?