HP A3262-63009 - Tubeaxial fan assembly - One Mounts on the rear panel (center) and the other on the front panel (below display) (Two used) Retail
HP 5064-3553 - Tubeaxial fan - For the CPU board - Mounts on the rear of the chassis (Two used) Retail
HP 3160-0315 - Tubeaxial fan - 105mm (4.126in) mounting hole spacing, 38.1mm (1.5in) thick, 100-125VAC, 50-60Hz, 105CFM - Mounts on front fan panel (Four used) Retail