HP DV4 / CQ40 internal CPU cooling fan

Overheating in HP Pavilion DV4 and Compaq Presario CQ40 laptops can cause sudden shutdowns and permanent damage. This internal cooling fan replaces a failed or noisy original unit, restoring proper heat dissipation for the CPU/GPU area.

Who is it for

This fan is for technicians and advanced users repairing HP Pavilion DV4 Series or Compaq Presario CQ40 Series laptops. It requires opening the laptop case and is not a plug-and-play external accessory.

Main features

• Compatible with HP Pavilion DV4 Series and Compaq Presario CQ40 Series
• Blower-type fan with hydro bearing for low noise and long life
• 3-pin power connector, DC 5V, 0.35A–0.5A
• High-quality plastic housing, black colour
• Replaces part numbers KSB0505HA, UDQFRHR02C1N, AB7805HX-LB3

Specifications

• Type: Internal CPU cooling fan (blower)
• Compatible series: HP Pavilion DV4, Compaq Presario CQ40
• Power input: DC 5V
• Current rating: 0.35A–0.5A
• Connector: 3-pin
• Bearing: Hydro bearing
• Material: Plastic housing
• Cable length: 7 cm
• Number of blades: 7–9
• Condition: New

Tips

Professional installation is recommended. Thermal paste is not included and must be applied separately when reinstalling the heatsink.