Replacement Server Motherboard for X3400 / X3500 M2 — Part 46D1406 & 81Y6002

Replacement server mainboard compatible with IBM/Lenovo X3400 and X3500 M2 systems. This motherboard matches part numbers 46D1406 and 81Y6002 for a direct fit in systems that require these exact replacements. Ideal for repairing or rebuilding servers where the original board is faulty. Verify chassis compatibility and required BIOS version before installation.