Diagnosing and Repairing a MacBook Pro Memory Failure: Pinpointing a Single Faulty RAM IC
2025-04-05
This article details how to pinpoint a single faulty RAM IC causing a memory failure using Memtest86 results and memory address decoding, using a late 2013 15-inch MacBook Pro as a case study. It analyzes the mapping between memory addresses and channels, ranks, and data bits, and uses schematics and board views to successfully replace the faulty IC and fix the memory issue. Note that this method relies on some reverse-engineered findings and requires some electronics repair skills.
Hardware
Memory Failure