Source: steps rewritten in our own words (no more than 8 words in a row copied; part numbers, screw sizes and warnings kept as printed) from HP's Maintenance and Service Guide (PDF, printed pages 84). Not bench-tested. We have not performed this repair; keep HP's manual open for its illustrations. Scope restrictions below are part of the guide: do not apply it to other models, generations or configurations. Service manuals are written for trained technicians; work at your own risk.
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 G11. Confirm the exact model on the service label before starting.
HP EliteBook 645 G11 heat sink replacement. HP prints this procedure on printed page 84 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
N96443-001- Heat sink. Source: printed page 84.
Preparation
Save your work, shut the computer down through the operating system, unplug AC power and every external device, and work on a grounded, static-safe surface.
Replacement
- Shut down the computer and unplug the power cord. (printed page 84).
- Follow the printed steps for the heat sink and note the screw order. (printed page 84).
- Remove the heat sink and store it in a marked parts tray. (printed page 84).
Part numbers in our catalog
- HP heat sink (UMA 15 W models) (N96443-001)
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-g11-heat-sink-replacement-p84