HP D7140-63011 - Airflow guide - Directs air to the processors for cooling - Mounts in front of the fan Retail
HP D4898-69001 - Fan module assembly - Has two large cooling fans for the processor boards and five smaller fans for chassis cooling mounted on a flat panel - Mounts in the middle of the Chassis assembly Retail
HP 5064-3553 - Tubeaxial fan - For the CPU board - Mounts on the rear of the chassis (Two used) Retail