Rep: 13
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Screen hashed up with grey lines or spots. Apple on screen steady behind the spots
Is this a video card problem and is it separate from the logic board and replaceable?
Es esta una buena pregunta?
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First hook it up to an external monitor to confirm that it is the GPU. These can often be reflowed with a hot air work station. I have had about a 70% success rate doing this. There are also repair services offered on eBay. Compare prices on a repair vs replacement and be sure they have a good warranty. Here's how to replace the video card: Reemplazo de tarjeta GPU de iMac Intel de 21.5 '' EMC 2389
@rany may also be doing this service now and shipping would be cheap on just the card.
@refectio may also be doing it.
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