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Removal and replacement procedures
Maintenance and Service Guide 4–5
Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 90 screws, in 13 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.
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 The name affixed to the front of the computer.
2 Serial number (s/n) An alphanumeric identifier that is unique to each product.
3 Part number/Product number (p/n) This number provides specific information about the product’s
hardware components. The part number helps a service
technician to determine which components and parts are needed.
4 Model description An alphanumeric identifier used to locate documents, drivers, and
support for your computer.
5 Warranty period The duration of the warranty period for the computer.