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Graphene thermal paste? - Page 4

post #31 of 65
Quote:
Originally Posted by caveman59847 View Post

Both of you guys make a valid point. I bought 2 Indigo Extreme about three months ago and when I did get it to work it cooled very well. Not to take away from Indigo Extreme but the first time I used one I must not have completed the burn in correctly because I didn't get very good results and the second time i was able to get good results but after a month of use I burned out the AMD Phenom II x4 965 Black Edition Processor I was using. I ended up spending about $300 to replace the mobo and the processor and RMA'd the Corsair H100i I used. I finally bought a AMD Phenom II x6 1100T and was able to get it to working conditions. I wouldn't want anyone to shy away from trying the Indigo Extreme as maybe it was bad luck on my part and I guess sometimes thats what happens when experimenting with things and I am willing to accept that. The site graphene.ws actually has Graphene thermal paste and I understand it is becoming more readily available however there is also Graphene powder but I think I would just rather buy the paste as I am not a chemist and wouldn't want to mix it to apply to my CPU and finding a reputable seller of it as it becomes more poplar I'm sure their will be Companies selling less reliable products but I have been known to be a bit of a cynic at times




If you ever do decide to reseat your CPU cooler, CL Liquid Ultra tests better than Indigo Extreme and spreads more or less like normal thermal paste.

On a side note, the "graphene thermal paste" is just graphene powder mixed in some solution tongue.gif

On that note, I wonder how graphene mixed with Liquid Ultra would test o.o hot damn! I wanna try that *evil eyes*
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post #32 of 65
Indigo extreme is... well interesting to say the least. it is not very practical at all. it also seems kind of iffy. i have read both good and bad about it. Graphene directional or not has a good chance at and performing as good or better as straight up solder.
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post #33 of 65
I recently purchased a couple of syringes of graphene thermal paste from an eBay seller. It works well enough cooling-wise, but it can be horribly corrosion-inducing. Graphite in any form is electrically conductive, and with dissimilar metals (steel and aluminum or copper and aluminum, e.g.), or in the presence of moisture, there are corrosion problems. I removed my heatsink after a few weeks to upgrade my CPU and discovered that the the aluminum heatsink is quite badly pitted. Wikipedia mentions the corrosion effect in this article, section 2.2 (other properties).

http://en.wikipedia.org/wiki/Graphite
post #34 of 65
Quote:
Originally Posted by wright0n View Post

I recently purchased a couple of syringes of graphene thermal paste from an eBay seller. It works well enough cooling-wise, but it can be horribly corrosion-inducing. Graphite in any form is electrically conductive, and with dissimilar metals (steel and aluminum or copper and aluminum, e.g.), or in the presence of moisture, there are corrosion problems. I removed my heatsink after a few weeks to upgrade my CPU and discovered that the the aluminum heatsink is quite badly pitted. Wikipedia mentions the corrosion effect in this article, section 2.2 (other properties).

http://en.wikipedia.org/wiki/Graphite

First I have heard. Thanks. smile.gif
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B.K.T.
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post #35 of 65
Can you snap a pic of what it looked like? This should be a warning to all. Can you make a guess on what was used in the paste besides graphite?
post #36 of 65
that is crazy it corroded your heatsink.I recently took mine off cause my AMD Phenom II x4 965 Black Edition went south.I upgraded to the AMD Phenom II x6 1100T Black Edition and cleaned the heats but I didn't see any corrosion. I don't know maybe I just got lucky.
post #37 of 65
Quote:
Originally Posted by caveman59847 View Post

that is crazy it corroded your heatsink.I recently took mine off cause my AMD Phenom II x4 965 Black Edition went south.I upgraded to the AMD Phenom II x6 1100T Black Edition and cleaned the heats but I didn't see any corrosion. I don't know maybe I just got lucky.


what is your heat sink made of? If its copper on copper than, in theory, it shouldn't corrode. WrightOn stated he used a copper IHS, and an aluminum heat sink, which explains the corrosion, however copper on copper or copper on brass wouldn't matter, in theory.
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post #38 of 65
well I'm not sure what metal the top of the CPU is made out of but the Corsair H100i is all Copper I believe. I got my Graphine from Graphene.WS. I didn't see it mention what solution the Graphene was mixed in to make a themal paste. I would say it isn't water based cause it spread kinda difficult and wanted to stay on the card I used to spread it.
Edited by caveman59847 - 6/8/13 at 4:49pm
post #39 of 65
I believe the IHS is copper with a layer of nickel plating....if you were to lap the cpu you could remove the nickel for a copper/copper interface which should be alright.
post #40 of 65
Quote:
Originally Posted by technogiant View Post

I believe the IHS is copper with a layer of nickel plating....if you were to lap the cpu you could remove the nickel for a copper/copper interface which should be alright.

Nickle and copper have an SEP differnece of .10, you need an SEP difference of at least .25 for it to matter in an environment such as this. It's really only aluminum, or silver you'd need to worry about, unless you have some weird metal for a waterblock like titanium or something. (Silver and nickle don't like eachother, so also beware of a silver waterblock with a nickle coated IHS.


Nickle plated IHS with graphene thermal paste and copper should be fine, just fine.
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