HP EliteBook 850 G5 system board replacement

Step-by-step HP EliteBook 850 G5 system board replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you needL15520-001HP Intel i7-8550U processor L15520-001 for the HP EliteBook 850 G5
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On this page
  1. Applies to
  2. tools and parts
  3. preparation
  4. replacement
  5. Parts this procedure uses
  6. Part numbers in our catalog
  7. 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 70–72). 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 850 G5. Confirm the exact model on the service label before starting.

HP EliteBook 850 G5 Notebook PC system board replacement. HP prints this procedure on printed page 69 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
  • L15522-001 - Intel i7-8650U processor. Source: printed page 69.
  • L15520-001 - Intel i7-8550U processor. Source: printed page 69.
  • L15518-001 - Intel i5-8350U processor. Source: printed page 69.
  • L15516-001 - Intel i5-8250U processor. Source: printed page 69.
  • L15523-001 - Intel i5-7300U processor. Source: printed page 69.
  • L15514-001 - Intel i5-7200U processor. Source: printed page 69.

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. Position the computer upright (printed page 70).
  2. Take out the three Phillips M2.5×3.0 screws that hold the system board to the computer. (printed page 70).
  3. Close the computer and position it upside down. (printed page 70).
  4. Detach the following cables from the system board: (printed page 71).
  5. Take out the six Phillips M2.5×3.0 screws that hold the system board to the computer. (printed page 71).
  6. Lift the right side of the main board up at an angle (1). (printed page 71).
  7. Pull the system board up (printed page 72).
  8. Fit the replacement part by working back through the printed removal steps (printed page 72).

Parts this procedure uses

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-850-g5-system-board-replacement-p69

Key facts

HP document part number
L12982-002
Model
HP EliteBook 850 G5
Release year
2018
Screen size
15.6"
Printed pages
70–72