Component replacement procedures

This chapter provides removal and replacement procedures.

There are as many as 76 screws that must be removed, replaced, and/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. It is necessary to remove the battery to obtain these numbers. See Battery on page 47 for battery removal instructions.

Item	Description	Function

(1)	Product name	This is the product name affixed to the front of
		the computer.

(2)	Serial number (s/n)	This is 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 what
		components and parts are needed.

(4)	Warranty period	This number describes the duration of the warranty
		period for the computer.

(5)	Model description	This is the alphanumeric identifier used to locate
		documents, drivers, and support for the computer.

46	Chapter 4 Removal and replacement procedures

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