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 system board replacement. HP prints this procedure on printed page 60 of its maintenance and service guide.
tools and parts
- Tweezers, Nonconductive, nonmarking pry tool and Magnetic Phillips P1 drivers
- Static-safe work surface
- No spare part number for this component was found in the cached manual
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
- Detach the following cables from the system board: (printed page 60).
- Take out port bracket (1), by removing three Phillips M2.5 × 4.0 screws that hold bracket to system board, and then removing the bracket (3). (printed page 61).
- Take out the two Phillips M2.0 × 2.5 screws that hold the system board to the computer. (printed page 61).
- Lift side of system board upward (5), and then pull system board away from connectors on the side of the computer to take out it (6). (printed page 62).
- Put the system board back by repeating the printed removal moves in the opposite order (printed page 62).
Part numbers in our catalog
- HP System board for models with discrete graphics memory N00114-xx1 (N00114-xx1)
- HP AMD Ryzen 3 5425U processor, WWAN models N00115-xx1 (N00115-xx1)
- HP AMD Ryzen 5 5625U processor, WWAN models N00116-xx1 (N00116-xx1)
- HP AMD Ryzen 5 PRO 5675U processor N00117-xx1 (N00117-xx1)
- HP AMD Ryzen 5 PRO 5675U processor, WWAN models N00118-xx1 (N00118-xx1)
- HP AMD Ryzen 7 5825U processor, WWAN models N00119-xx1 (N00119-xx1)
- HP AMD Ryzen 7 PRO 5875U processor N00120-xx1 (N00120-xx1)
- HP System board, Ryzen 5 PRO 5675U, IR camera models N06859-xx1 (N06859-xx1)
- HP System board, Ryzen 5 PRO 5675U, IR camera and WWAN N06860-xx1 (N06860-xx1)
- HP System board, Ryzen 7 PRO 5875U, IR camera models N06861-xx1 (N06861-xx1)
- HP AMD Ryzen 7 PRO 5875U processor, WWAN models N06862-xx1 (N06862-xx1)
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-system-board-replacement-p60