Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 66 screws that must be removed, replaced, or loosened when servicing the
computer. Make special note of each screw's size and location during removal and replacement.
Service tag
When ordering parts or requesting information, provide the computer serial number and model
number provided on the service tag.
Item Component Description
(1) Product name This is the product name affixed to the front of the computer.
(2) Serial number This is an alphanumeric identifier that is unique to each product.
(3) Product part number This number provides specific information about the product’s hardware
components. The part number helps a service technician determine what
components and parts are needed.
(4) Warranty period This number describes the duration of the warranty period for the
computer.
(5) Model description (select models only) This is the alphanumeric identifier used to locate documents, drivers, and
support for the computer.
38 Chapter 4 Removal and replacement procedures
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