Replacement Cooling Fan 644316-001 / 644317-001 for Z620 Workstation — Memory Fan Shroud Assembly & Server CPU Cooler Fan

Direct replacement cooling fan assembly for Z620 Workstation models, compatible with part numbers 644316-001 and 644317-001. This Memory Fan Shroud Assembly serves as the server CPU cooler fan, restoring proper airflow and thermal management for workstation memory and processors. Ideal for repairs or maintenance of Z620 systems — fits in place of the original fan shroud and reconnects to existing fan headers without modification. Purchase this assembly to return your workstation to reliable cooling performance.