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 heat sink replacement. HP prints this procedure on printed page 58 of its maintenance and service guide, and the spare-part table for this part is on printed page 58.
tools and parts
- Tweezers, Nonconductive, nonmarking pry tool and Magnetic Phillips P1 drivers
- Static-safe work surface
M47406-001- Heat sink. Source: printed page 58.
preparation
HP prints its tools list and its handling and electrostatic-discharge cautions on printed page 31. Its preparation for disassembly is on printed page 40: power the unit down through the operating system, unplug the power cord and detach every external device before opening it. Work on a grounded, static-safe surface, keep screws grouped by the position they came from, and handle boards and modules by their edges.
replacement
- In order indicated on heat sink, loosen the four captive Phillips screws that hold the heat sink to the computer. (printed page 58).
- Take out the heat sink from the computer (2). (printed page 59).
- Thoroughly clean thermal material from surfaces of the heat sink (printed page 59).
- Put the heat sink back by repeating the printed removal moves in the opposite order (printed page 59).
Part numbers in our catalog
- HP heat sink with thermal material (M47406-001)
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-heat-sink-replacement-p58