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 450 G3. Confirm the exact model on the service label before starting.
HP ProBook 450 G3 Notebook PC heat sink assembly replacement. HP prints this procedure on printed page 78 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
828396-001- Heat sink for use in models with discrete graphics. Source: printed page 78.830949-001- Heat sink for use in models with UMA graphics. Source: printed page 78.
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
- Position the system board upside-down. (printed page 78).
- Models are available using either UMA or discrete graphics. (printed page 78).
- Fit the replacement part by working back through the printed removal steps (printed page 80).
Part numbers in our catalog
- HP heat sink 830949-001 (830949-001)
- HP heat sink 828396-001 (828396-001)
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-450-g3-heat-sink-assembly-replacement-p78