Author Topic: R9 290X problems  (Read 6383 times)

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Offline LowRezTopic starter

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  • Country: ro
Re: R9 290X problems
« Reply #25 on: March 15, 2018, 11:51:49 am »
Well I used a 2KW air gun lol..

I have to say you are a brave soul, I'm glad it worked for you. Personally I wouldn't touch bga rework, especially not with multi-thousand ball bga. With my luck the board will delaminate and/or the pads will get ripped off.

Well I did happen to break some pads.. But not on this board.
That`s fixable, you just need steady hands and a good camera/microscope.
And this too: https://www.zipy.ro/p/ali/0-01-0-02-mm-pure-copper-wire-line-for-fix-repair-iphone-ipad-phone-motherboard-logic-board-pcb-fingerprint-sodering-point-tools/32767228143/     8)

But that happens when you force the chip off the PCB (for various reasons), or when the pad is "pre-broken".
And about the delamination... Never happened to me yet.
But, as I wrote, I used the temp probe from my multimeter, and didn`t go above 240*C and that was for a short time.
Now I`m wondering if I should use solder paste (same I used on phones) or solder balls...
I guess it will depend on the thickness of the stencil.
 


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