[chbot] Reflowing laptop graphic chips

[Nathan Kennedy]

Thanks for sharing. I've seen this technique used before and proven to be
quite successful.

>From memory, it was commonly used to fix Xbox consoles that had suffered
the infamous 'ring of death'.

Nathan.

On Thu, Sep 6, 2012 at 4:16 PM, Kerry Harpur <kayjayharpur at gmail.com> wrote:

> Hi all, I've been having a go at re-flowing graphics chips on laptops over
> the last couple of days at work. I thought some of you might be interested
> in my results.
>
> Basically the technique is to strip the motherboard back as much as
> possible use some thick aluminium foil as a heat shield then carefully use
> a heat gun the re-flow the solder. There are plenty of tutorials online and
> the technique I used was similar to this one:
> http://www.laptoprepair101.com/laptop/2011/02/23/fix-laptop-motherboard-with-failed-nvidia-graphics-chip/
>
> Anyway I was a little surprised how little heat was needed to get the
> solder flowing, I use a heat gun to remove capacitors from boards and much
> more heat is needed for this. Anyway I've uploaded some pics so you can see
> the results.
> http://s1243.photobucket.com/albums/gg559/kayjayharpur/Reflow/
>
>
> Image one shows the board prior to re-flow, the second after
> a successful re-flow and the in the third where I buggered it up by
> removing the shield before the board cooled and accidentally brushed some
> of the still hot components. So far I've done a couple of laptops and the
> first one was successful the second as you can see by the pic not so much.
>
> Kerry
>
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