Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 77 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 51 for battery removal instructions.
Item | Component | Description |
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(1) | Product name | This is the product name affixed to the front of |
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| the computer. |
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(2) | Serial number (s/n) | This is an alphanumeric identifier that is unique to |
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| each product. |
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(3) | Part number/Product number (p/n) | This number provides specific information about |
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| the product’s hardware components. The part number |
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| helps a service technician determine what components |
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| and parts are needed. |
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(4) | Warranty period | This number describes the duration of the warranty |
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| period for the computer. |
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(5) | Model description | This is the alphanumeric identifier used to locate |
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| documents, drivers, and support for the computer. |
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50 | Chapter 4 Removal and replacement procedures |