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  1. #1
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    What material is used in the 980ti Poseidon block?

    I am interested in getting the GTX 980Ti Poseidon card for my new custom loop build.

    I have tried but was unable to find any info on this: what type of material will be in contact with the liquid?
    I am using copper/brass rads and want to make sure that the gpu block has no aluminium.

  2. #2
    ROG Guru: Grand Master Array
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    The cooling block that makes direct contact with the GPU core is made of copper.

    Click image for larger version. 

Name:	GTX980TiPoseidon.jpg 
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ID:	53778

  3. #3
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    Quote Originally Posted by Chino View Post
    The cooling block that makes direct contact with the GPU core is made of copper.

    Click image for larger version. 

Name:	GTX980TiPoseidon.jpg 
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ID:	53778
    OK, I get that, but I see that the actual pipe is a different colour that the block. I just want to check if that the actual pipe, that comes in contact with the water is copper or aluminium?

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  5. #5
    ROG Guru: Black Belt Array Korth PC Specs
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    On this GTX980Ti Poseidon takeapart pic it looks like the heatpipes are all solid copper. The rad fins are obviously aluminum. This type of stamp-brazing is only practical with copper (or copper-based alloy) melded to copper, copper joined to copper-plated aluminum (or copper-plated whatever) would require a different brazing approach which leaves larger fillet stock (and these could not be ground flush without substantially weakening joint integrity). I suspect the heatpipes all use an internally sintered wick structure because of their variable orientations - Asus clearly wanted to push the limits with multi-stage cooler design so I doubt they cheaped out on details which could save small pennies at the cost of major thermal inefficiency. A black surface finish is applied onto the heatpipe metals on some Asus cards, it's probably just a simple carbonic black oxide or black nickle/nichrome electroplating process, the sort of thing you could DIY in the garage.

    I haven't actually taken one of these cards apart to see the internals firsthand though.

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