HP ProBook 450 G4 system board replacement

Step-by-step HP ProBook 450 G4 system board replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

On this page
  1. Applies to
  2. tools and parts
  3. preparation
  4. replacement
  5. Manufacturer manual
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 33–76). 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 ProBook 450 G4. Confirm the exact model on the service label before starting.

HP ProBook 450 G4 Notebook PC system board replacement. HP prints this procedure on printed page 74 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

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.

  1. Power the machine down. If you are unsure whether the machine is off or in Hibernation, turn the machine on, and after that shut it down through the operating system. (printed page 33).
  2. Detach every external device wired to the machine. (printed page 68).
  3. Cut the power by pulling the cord out of the wall outlet, and after that unplugging the AC adapter from the machine. (printed page 68).
  4. Place the machine upright on a flat surface. (printed page 66).

replacement

  1. Take the following parts out: a. Service door (the Service door section is on page 33). b. Hard drive (the Hard drive section is on page 36) c. Optical drive (the Optical drive section is on page 34) d. Keyboard (the Keyboard section is on page 45) e. Top cover (the Top cover section is on page 52) f. Battery (the Battery section is on page 66) (printed page 74).
  2. Detach those leads from the main board: (1) Display lead (2) Optical drive connector lead (printed page 75).
  3. Take the 3 Phillips PM2.5×7.0 fasteners (1) that hold the main board to the machine. (printed page 75).
  4. Lift the bracket off the top of the USB-Type C port (2). (printed page 75).
  5. Turn the right side of the main board upward (3). (printed page 75).
  6. Detach the power connector lead from the bottom of the main board (4). (printed page 75).
  7. Pull the main board away out of the connectors at the side of the chassis to lift it out from the machine (5). (printed page 76).
  8. Fit the replacement part by working back through the printed removal steps (printed page 76).

Manufacturer manual

HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-probook-450-g4-system-board-replacement-p74

Key facts

HP document part number
903116-001
Model
HP ProBook 450 G4
Release year
2016
Screen size
15.6"
Printed pages
33–76

Related