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 ProBook 455 G8. Confirm the exact model on the service label before starting.
HP ProBook 455 G8 Notebook PC heat sink replacement. HP prints this procedure on printed page 43 of its maintenance and service guide, and the spare-part table for this part is on printed page 43.
tools and parts
- Tweezers, Nonconductive, nonmarking pry tool and Magnetic Phillips P1 drivers
- Static-safe work surface
M21716-001- Heat sink for use in models. Source: printed page 43.
preparation
HP prints its tools list and its handling and electrostatic-discharge cautions on printed page 24. Its preparation for disassembly is on printed page 32: 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 six captive Phillips screws that hold the heat sink to the computer. (printed page 43).
- Take out the heat sink from the computer (2). (printed page 44).
- Thoroughly clean thermal material from surfaces of the heat sink (printed page 44).
- Put the heat sink back by repeating the printed removal moves in the opposite order (printed page 44).
Part numbers in our catalog
- HP heat sink M21716-001 (M21716-001)
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-probook-455-g8-heat-sink-replacement-p43