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    M17xR4 What is the correct Heat Sink for the GTX780m ?

    Discussion in 'Alienware 17 and M17x' started by Assasin321, Jan 7, 2014.

  1. Assasin321

    Assasin321 Notebook Guru

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    So I am going to upgrade my laptops 660m to a 780m.


    As far as I know my current heatsink is 75w for the 660M.


    The 780m is a 100w card, Do I need to get a 100w heatsink?


    I have been told that the mode; '9CNMG' for the 680m is compatible with the 780m
    Alienware NVIDIA Video Graphics Card M17x R3 R4 Heat Sink 100W GTX680M 9CNMG | eBay


    On a side note how do i determine my model of Heat sink. just in case I allready have that model


    Cheers Anton
     
    Assasin321, Jan 7, 2014
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  2. DDDenniZZZ

    DDDenniZZZ Notebook Deity

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    heatsinks are all the same for the m17x R4. 680 and 660m have the same one (three pipe) and the same xbracket too i think. They should be a straight swap with modded drivers for the 780m.
     
    DDDenniZZZ, Jan 7, 2014
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  3. Assasin321

    Assasin321 Notebook Guru

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    So a 100watt 780m card would work in a 75watt heat sink?


    Wouldnt this casue problems though like excess heat (Im not to familiar with how they work)?
     
    Assasin321, Jan 7, 2014
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  4. DDDenniZZZ

    DDDenniZZZ Notebook Deity

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    Not really, it makes sense for dell to only have 1 heatsink for a model saving costs, the 680m is a 100W model so the 780m should be fine as well.

    I am not aware of dell doing anything different for the 680/660m heatsinks. If its triple pipe it should be fine, not even sure they made the dual pipe for the GPU heatsink.
     
    DDDenniZZZ, Jan 7, 2014
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  5. Assasin321

    Assasin321 Notebook Guru

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    Tomorow i will open up the case and take a photo of the heat sink hopefully that will help me oout with this.
     
    Assasin321, Jan 7, 2014
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  6. Alienware-L_Porras

    Alienware-L_Porras Company Representative

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    It shouldn't but it's always a good idea to keep an eye on the temps after a change like this one.
     
    Alienware-L_Porras, Jan 7, 2014
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