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Graphics How a dead GFX Card is made alive professionally

Discussion in 'Hardware' started by rakesh_sharma23, 21 Dec 2014.

  1. rakesh_sharma23

    rakesh_sharma23 Minimodder

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    How a dead GFX Card is made alive professionally.

    In this article I will show you how a dead graphics card is repaired. No oven baking, no do-it-yourself type trikes, just a pure professional repairs.
    Meet the victim, my old no display, dead ATI-Radeon X1650 graphics card.

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    Removing the heat sink.
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    Thermal compound on the chip cleaned.
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    Now circuit board is installed on a BGA chip reflow machine.
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    Heater head mounted properly.
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    Machine in action
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    Within a minute chip is out.
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    There is very little space between chip and circuit board approx. 0.1mm still you can see their is dust under the chip. This dust, heat and moisture together sometimes oxides and breaks these fine connection resulting a GPU failure.
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    Chip is mounted on a reballing mount.
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    You can see many connection pins have gone black due to dust and oxide layer.
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    Heat cleaning the chip connection terminal.
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    Preparing the chip for new BGA soldering balls. Flux, 0.6mm lead free soldering BGA balls and grid.
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    Some close look on BGA soldering balls
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    Grid aliened, chip ready for reballing.
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    Ball properly falls into place.
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    All missed holes are carefully populated with a ball using a fine needle.
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    Perfect. New shiny ball are in place. Looks nice
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    Little heat for removal of any excise flux applied during the ball placement stage.
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    Now chip is carefully placed back on the circuit and controlled heat is applied for re-soldering.
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    Perfect chip re-soldering
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    New thermal compound is applied and heat sink installed.
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    Test system ready. Now is the time that will show whether the GPU is back to life or gone forever.
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    It’s live.. Success.
    [​IMG]
    [​IMG]

    Some GTA san andreas run shows that GPU is 100% fine.

    Hope you like this article.

    Regards
    Rakesh Sharma
     
    Last edited: 21 Dec 2014
    Bungletron and hyperion like this.
  2. Parge

    Parge the worst Super Moderator

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    Wow! That is incredibly interesting! Thanks for sharing :)
     
  3. Corky42

    Corky42 Where's walle?

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    Indeed, very interesting.
    Probably dumb question or a obvious yes, but when applying the solder balls to the chip is it just flux that is holding them in place on the contacts until heat is applied ?
     
  4. modd1uk

    modd1uk Multimodder

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    Enjoyed reading that thank you buddy.

    Nice to see how it's done properly, does this method work the majority of the time?
     
  5. Kronos

    Kronos Multimodder

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    That seems simple enough to do. Where do I get the kit, B&Q.

    But seriously very interesting.
     
  6. Umbra

    Umbra What's a Dremel?

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    Very impressive, so who actually does this work, independent companies or the GPU manufacturers, is this what's considered a 'Reconditioned' card?
     
  7. rakesh_sharma23

    rakesh_sharma23 Minimodder

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    Just flux
     
  8. rakesh_sharma23

    rakesh_sharma23 Minimodder

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    Yes most of time this works unless you have some major chip issues.
     
  9. SuperHans123

    SuperHans123 Multimodder

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    Super impressive and interesting. This would have been a great Custom PC article.
     
  10. wyx087

    wyx087 Homeworld 3 is happening!!

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    That BGA kit looks quite specific to your chip. May I ask how did you obtain it?
     
  11. law99

    law99 Custom User Title

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    Thanks for sharing. Very interesting indeed.
     
  12. Tattysnuc

    Tattysnuc Thinking about which mod to do 1st.

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    great article. Where did you come across this, and whose kit is its?
     
  13. Fizzban

    Fizzban Man of Many Typos

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    Fascinating. Looks kinda fun.
     
  14. TheStockBroker

    TheStockBroker Modder

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    Cool!

    Thanks for sharing, nice to see how these things are done!
     
  15. GaryP

    GaryP RIP Tel

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    Really interesting, thanks for that.
     
  16. Margo Baggins

    Margo Baggins I'm good at Soldering Super Moderator

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    I wish I could reflow chips that big! My reflow station is not big enough.
     
  17. edzieba

    edzieba Virtual Realist

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    I remember my days reflowing and reballing console chips and the occasional laptop GPU (with a cheap&nasty Jovy station). Always amusing to see attempted 'fixes' (e.g. removing the X-clamp and replacing it with bolts!).
     
  18. rakesh_sharma23

    rakesh_sharma23 Minimodder

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    Thank you very much for viewing my article and very happy that you all enjoyed it the same as I love doing it.. Will sharing more like this.
     
  19. Bede

    Bede Minimodder

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    Really interesting - nice to see professional work.
     
  20. Sheiken

    Sheiken Wat?

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    Very cool and insightful!

    I am shocked to see all the dust under the chip, I had no idea that was possible!
     

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