5

Removal and Replacement Procedures

This chapter provides removal and replacement procedures.

There are as many as 101 screws and screw locks, in 12 different sizes, that must be removed, replaced, or loosened when servicing the computer. Make special note of each screw and screw lock size and location during removal and replacement.

Refer to Appendix A, “Screw Listing” for detailed information on screw and screw lock sizes, locations, and usage.

5.1 Serial Number

Report the computer serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom of the computer.

Serial Number Location

Maintenance and Service Guide

5–1

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HP nw9440, nx9420 manual Removal and Replacement Procedures, Serial Number