Labels: DOCUMENTED = taken from HP's manual; PROPOSED = our own joining or ordering of HP's directions, not an HP instruction; UNPERFORMED = a suggested check that has not been carried out.
Applies to
HP EliteBook 645 G9. Confirm the exact model on the service label before starting.
HP EliteBook 645 14 inch G9 Notebook PC fan assembly replacement. HP prints this procedure on printed page 57 of its maintenance and service guide.
Tools and parts
- Screwdrivers and a non-marking pry tool as HP lists for this procedure
- Static-safe work surface
M21718-001- Fan for use in 42 W models. Source: printed page 56.N00095-001- Fan for use in 51 W models. Source: printed page 56.
Preparation
Save your work and shut the computer down through the operating system, unplug AC power and every external device, and work on a clean, grounded, ESD-protected surface while sorting each screw by its original location. Handle every cable by its connector and put each one back in its own place during reassembly.
Replacement
- Take display lead from the clips on the fan (1). (printed page 57).
- Take the three Phillips 2.0 × 4.0 fasteners (2) that hold the fan to the machine. (printed page 57).
- Detach the fan lead from the main board (3). (printed page 57).
- Take the fan from the machine (4). (printed page 57).
- Fit the replacement part by working back through the printed removal steps (printed page 57).
Part numbers in our catalog
- HP cooling fan M21718-001 (M21718-001)
- HP cooling fan N00095-001 (N00095-001)
Check each part page for its source and variant notes before ordering.
Manufacturer manual
HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-elitebook-645-14-inch-g9-fan-assembly-replacement-p57