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    M18x R1 + GTX780m - Heatsink Question

    Discussion in 'Alienware 18 and M18x' started by bajticzek, Jan 14, 2015.

  1. bajticzek

    bajticzek Notebook Enthusiast

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    Hey guys,
    I upgraded my M18x R1 from GTX580m (I had only one, the other was dead) to single GTX780m. Can I use the heatsink from GTX580m? Its part number is JW8P7 - 100W nVidia heatsink. It fits very well, but I am kinda concerned about two VRM chips that are not cooled at all. Should I buy some other heatsink? And if so, which part number it should be?

    Thanks for your answers.

    gtx780m.jpg
     
    bajticzek, Jan 14, 2015
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  2. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist®

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    You would be better off with 680M heat sinks to provide cooling for those components. This is a copy and paste from one of my Dell invoices. The price was valid in March 2014.

    Y48TK Assembly,Heatsink,Video Graphics Adapter,13GS1,M18XR2,Right $28.99
    5G1VJ Assembly,Heatsink,Video Graphics Adapter,13GS1,M18XR2,Left $28.99
     
    Mr. Fox, Jan 14, 2015
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    reborn2003, UltraGSM and bajticzek like this.
  3. bajticzek

    bajticzek Notebook Enthusiast

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    Thank you Mr. Fox, that's the exact answer I've been expecting. Thanks!
     
    bajticzek, Jan 14, 2015
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  4. Meaker@Sager

    Meaker@Sager Company Representative

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    Yes I would not run without them being properly cooled as they can get very hit especially if you tweak.
     
    Meaker@Sager, Jan 15, 2015
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  5. Steve135

    Steve135 Notebook Enthusiast

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    I hope so because that's what I'm going to put in mine. I'm upgrading a my old 6970 crossfire rig to 780 SLI and swapping out the heatsinks for the nVidia 100W ones (which I'm sill in the market for btw). It'll be the first time I've done this on a laptop so wish me luck.
     
    Steve135, Jan 15, 2015
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  6. bajticzek

    bajticzek Notebook Enthusiast

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    bajticzek, Jan 16, 2015
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  7. bajticzek

    bajticzek Notebook Enthusiast

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    Hey guys, I have another question. It is about X-brackets.

    According to this post here on notebookreview http://forum.notebookreview.com/alienware-18-m18x/687292-guide-curing-shorted-support-plate-gtx-580m-error-code-43-revision-ff-error.html#post8831154 there are two types of X-brackets. One is "cooling" 4 VRAM chips, the other all 8 of them. Which brackets should be used for which GPU? "Dual" bracket for primary (left) GPU and "single" bracket for secondary (right) GPU? Does it matter at all? I had it vice-versa on my 580Ms, so I am kinda confused.

    Thanks for your answers.
     
    bajticzek, Jan 19, 2015
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  8. Meaker@Sager

    Meaker@Sager Company Representative

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    The ram does not really need cooling (and the bracket does not really add cooling) so it wont make a difference really.
     
    Meaker@Sager, Jan 19, 2015
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