What does 12.23v on PPBUS_G3H mean on a Macbook logic board?
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What is power cycling and what causes it on Macbook logic board?
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A1398 Macbook Pro no power PPBUS_G3H missing; logic board repair
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A1466 Macbook Air 2.4v on PP3V42_G3H no power
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How Can We Diagnose and Fix a Dead Laptop
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Introduction to Macbook logic board power circuits - 820-2936 no PPBUS_G3H repair
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Retina Macbook Pro DEAD, PPBUS_G3H stuck at 4v.
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How do Graphics Cards Work? Exploring GPU Architecture
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