LAPTOP REPAIR GLOSSARY / MACBOOK
Logic Board
Apple’s term for the motherboard. On Apple Silicon MacBooks, the logic board contains the M-series chip, RAM, and storage all soldered together — making it far more expensive to replace than on other laptops.
When an Apple technician says “logic board replacement” they typically mean swapping the entire board — which can cost $800–$1,500. Component-level microsoldering repair targets only the failed part, often costing $150–$300.
Logic Board vs Motherboard
They are the same thing. Apple uses “logic board” as their branded term. Every other laptop manufacturer calls it a motherboard. The function is identical — it’s the main circuit board that connects all components.
Common Logic Board Faults
Won’t power onBlown fuse or failed power management IC. Often repairable at component level.
No video outputDisplay controller fault. Mac works but screen stays black.
Liquid damage corrosionCorroded traces and components from a spill. Ultrasonic cleaning + microsoldering.
USB-C / charging faultCharging circuit damage. Often a failed USBC controller or filter chip.
