HP ProBook 640 G2 serial port replacement

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 640 G2. Confirm the exact model on the service label before starting.

HP ProBook 640 G2 Notebook PC serial port replacement. HP prints this procedure on printed page 80 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
• 840746-001 - Serial. Source: printed page 80.

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. Detach all external devices connected to the computer. (printed page 39).

replacement

2. Power the machine down. (printed page 82).
3. Cut the power by pulling the cord out of the wall outlet, and (printed page 82).
4. Take out the service door (see that procedure on page 37). (printed page 82).
5. Take off the battery (see that procedure on page 38). (printed page 82).
6. Take off the battery (see that procedure on page 38) (printed page 82).
7. Hard drive (see that procedure on page 39). (printed page 82).
8. Solid-state drive (see Solid-state drive (choose products only) on page 41). (printed page 82).
9. WWAN module (see WWAN module (choose products only) on page 42). (printed page 82).
10. WLAN module (see that procedure on page 44). (printed page 82).
11. Optical drive (see that procedure on page 46). (printed page 83).
12. Keyboard (see that procedure on page 48). (printed page 83).
13. Hinge covers (see that procedure on page 55). (printed page 83).
14. Base enclosure (see that procedure on page 57). (printed page 83).
15. System board (see that procedure on page 59). (printed page 83).
16. Fan/heat sink assembly (see that procedure on page 61). (printed page 83).
17. Top cover (see that procedure on page 65). (printed page 83).

Parts this procedure uses

• HP Serial port board with cable 840746-001 (840746-001)

Manufacturer manual

HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-probook-640-g2-serial-port-replacement-p80