HP EliteBook 755 G3 heat sink/fan assembly replacement

Step-by-step HP EliteBook 755 G3 heat sink/fan assembly replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you need821184-001HP heat sink/thermal module with fans (15", UMA graphics) for the HP EliteBook 755 G3
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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 34–60). 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 755 G3. Confirm the exact model on the service label before starting.

HP EliteBook 755 G3 Notebook PC heat sink/fan assembly replacement. HP prints this procedure on printed page 58 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
  • 821163-001 - Heat sink/thermal module with fans for 14” computers. Source: printed page 58.
  • 821184-001 - Heat sink/thermal module with fans for 15” computers with UMA graphics. Source: printed page 58.
  • 821185-001 - Heat sink/thermal module with fans for 15” computers with discrete graphics. Source: printed page 58.

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 cannot tell whether the machine is off or in Hibernation, turn the machine on, and after that shut it down through the operating system. (printed page 34).
  2. Cut the power from the machine by unplugging the power cord from the machine. (printed page 34).
  3. Detach every external device from the machine. (printed page 34).
  4. Take the battery out (the Battery section is on page 39). (printed page 40).

replacement

  1. Bottom cover (the Bottom cover section is on page 34). (printed page 58).
  2. Take the internal base plate (the Internal base plate section is on page 55). (printed page 58).
  3. Fit the replacement part by working back through the printed removal steps (printed page 60).

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-755-g3-heat-sink-fan-assembly-replacement-p58

Key facts

HP document part number
842508-001
Model
HP EliteBook 755 G3
Release year
2015
Screen size
15.6"
Printed pages
34–60

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