For WorkStation Z420 Motherboard — 619557-001 / 618263-001 / 619557-501 / 619557-601 (Supports V1 CPU)

Replacement mainboard for WorkStation Z420 compatible with part numbers 619557-001, 618263-001, 619557-501, and 619557-601. This motherboard is designed to support V1 CPU configurations and serves as a direct replacement for Z420 systems requiring a compatible mainboard.