5B21C75778 - Lenovo Laptop Motherboard - Genuine

This Lenovo Laptop Motherboard (5B21C75778) is a genuine part designed specifically for Lenovo laptops. Compatible with Lenovo brand computers, this motherboard serves as the central hub for connecting all internal components of your laptop, such as the CPU, RAM, and hard drives. Known for its reliable performance and compatibility, this motherboard is also known as 'BDPLANAR MB81MC NOK N4100UMA4G 32G(N+N),' enhancing its recognition among tech professionals and DIY repair enthusiasts.

When your laptop starts experiencing issues such as frequent crashes, inability to boot up, or BIOS errors, it might indicate that the motherboard is failing. Replacing the motherboard is a definitive solution to resolving these critical issues and restoring your laptop's functionality.

Before purchasing, please verify your device's model number to ensure compatibility with the 5B21C75778 motherboard, avoiding any potential mismatches and ensuring a smooth repair process.

iFixit is an official Lenovo partner. Our Genuine Lenovo parts are supplied by the official Lenovo supply chain.