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A1398 820-3332-A no GPUVCORE
This machine was going to a blank/dead screen while in use, more and more often. Eventually it got to the point where it would chime on re-boot, but the lcd would show no image. Tried re-soldering/replacing U8900, then when that didn't help, realized I needed to stop guessing and start...- marigx
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- Forum: Macbook Logic Board Repair Questions