HP 550 - Notebook PC, Maintenance And Service Manual

Page: 45 / 150

Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 82 screws, in 18 different sizes, that must be removed, replaced, or loosened
when servicing the computer. Make special note of each screw size and location during removal and
replacement.
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.
●
Product Name (1) . This is the product name affixed to the front of the computer.
● Serial Number (s/n) (2) . This is an alphanumeric identifier that is unique to each product.
●
Part Number/Product Number (p/n) (3) . This number provides specific information about the
product's hardware components. The part number helps a service technician to determine what
components and parts are needed.
● Model Description (4) . This is the number you use to locate documents, drivers, and support for
your notebook.
●
Warranty Period (5) . This number describes the duration (in years) of the warranty period for this
computer.
Component replacement procedures 37