Compaq Presario CQ20-400 Compaq Presario CQ20 Notebook PC - Maintenance and Se - Page 38
Component replacement procedures, Serial number - drivers
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Removal and replacement procedures Component replacement procedures This chapter provides removal and replacement procedures. There are as many as 71 screws, in 14 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. Serial number Report the computer serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom of the computer. Item 1 2 3 Component Product name Serial number (s/n) Part number/Product number (p/n) 4 Model description 5 Warranty period Description This is the product name affixed to the front of your computer. This is an alphanumeric identifier that is unique to each product. 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. This is the number you use to locate documents, drivers, and support for your computer. This number describes the duration (in years) of the warranty period for this computer. 4-6 Maintenance and Service Guide