HP 5064-3553 - Tubeaxial fan - For the CPU board - Mounts on the rear of the chassis (Two used) Retail
HP 5064-1984 - Lower auxiliary fan assembly - Mounts on the back panel next to the rear hard drives Retail
HP 5064-0701 - Fan assembly - With housing - Mounts to the rear panel in the upper slot (above the power supply assembly) Retail
