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MacBook Pro 15" A1286 Year 2011 Faulty GPU Repair

Customer: WA 6156
Machine Model: 15” MacBook Pro A1286 Year 2011
Fault Descriptions:

Grey screen with wavy lines, cannot log in most of time.

Investigation: AMD GPU failing, but not completely dead yet
Solution: Remove all AMD GPU functions and connect the screen direct to internal Intel graphics chip
Result:

1. No software including Photoshop are affected by the removal of AMD GPU.

2. MacBook is running 15 °C cooler than before. GPU overheating problem fixed forever.

3. Battery lasts about 10% longer than before.