HP EliteBook 840 G11 system board replacement

Step-by-step HP EliteBook 840 G11 system board replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you needN91906-xx1HP Motherboard N91906-xx1 for the HP EliteBook 840 G11
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On this page
  1. Applies to
  2. Tools and parts
  3. Preparation
  4. Replacement
  5. Part numbers in our catalog
  6. 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 39–61). 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 840 G11. Confirm the exact model on the service label before starting.

HP EliteBook 840 14 inch G11 Notebook PC system board replacement. HP prints this procedure on printed page 60 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.

Replacement

  1. Get the machine ready for taking apart (the Preparation for disassembly section is on page 37). (printed page 39).
  2. Take the bottom cover off (the Bottom cover section is on page 37). (printed page 39).
  3. Take the battery out (the Battery section is on page 48). (printed page 50).
  4. Take the fan (the Fan section is on page 46). (printed page 59).
  5. Detach those leads from the main board: (printed page 60).
  6. Take the seven Phillips M2.0 × 4.0 fasteners (1). (printed page 60).
  7. Take the two Phillips M2.0 × 2.0 fasteners (2). (printed page 60).
  8. Take the Phillips M1.6 × 4.0 fastener (3). (printed page 60).
  9. Take the plastic bracket (4). (printed page 61).
  10. Lift the side of the main board upward (1), and after that pull the main board (2) away out of the connectors on the side of the machine to lift it out. (printed page 61).

Part numbers in our catalog

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-840-14-inch-g11-system-board-replacement-p60

Key facts

HP document part number
N90667-001
Model
HP EliteBook 840 G11
Release year
2024
Screen size
14"
Printed pages
39–61