Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 54 screws, in 8 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.
NOTE: The service tag color may be different on select models.

Service tag

When ordering parts or requesting information, provide the computer serial number and model
description provided on the service tag:
(1) Product name: This is the product name affixed to the front of the computer.
(2) Serial: This is an alphanumeric identifier that is unique to each product.
(3) Product: This number provides specific information about the product's hardware components. The
product number helps a service technician determine what components and parts are needed.
(4) Warranty: This number describes the duration of the warranty period for the computer.
(5) Model: This is the alphanumeric identifier used to locate documents, drivers, and support for the
computer.
NOTE: The Warranty (4) and the Model (5) fields are excluded on select models.
34 Chapter 4 Removal and replacement procedures