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b Maintenance and Service Guide Compaq Evo N115 Series Document Part Number: 263816-001 January 2002 This guide is a troubleshooting reference used for maintaining and servicing the notebook. It provides comprehensive information on identifying computer features, components, and spare parts, troubleshooting computer problems, and performing computer disassembly procedures. © 2002 Compaq Information Technologies Group, L.P. Compaq, the Compaq logo, and Evo are trademarks of Compaq Information Technologies Group, L.P. in the U.S. and/or other countries. Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and/or other countries. Athlon, Duron, and PowerNow! are trademarks of the AMD Corporation in the U.S. and/or other countries. All other product names mentioned herein may be trademarks of their respective companies. Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided "as is" without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty. Maintenance and Service Guide First Edition January 2002 Document Part Number: 263816-001 Contents 1 Product Description 1.1 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­2 1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­8 1.3 Clearing a Password. . . . . . . . . . . . . . . . . . . . . . . . . . 1­9 1.4 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . 1­10 1.5 Computer External Components . . . . . . . . . . . . . . . 1­11 1.6 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­22 2 Troubleshooting 2.1 Using the PhoenixBIOS Setup Utility . . . . . . . . . . . . 2­1 2.2 Troubleshooting Flowcharts. . . . . . . . . . . . . . . . . . . . 2­2 3 Illustrated Parts Catalog 3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . 3­1 3.2 Computer System Major Components . . . . . . . . . . . . 3­2 3.3 Plastics and Hardware Kit Components. . . . . . . . . . . 3­8 3.4 Cable Kit Components . . . . . . . . . . . . . . . . . . . . . . . . 3­9 3.5 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3­10 3.6 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3­12 Maintenance and Service Guide iii 4 Removal and Replacement Preliminaries 4.1 Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Service Considerations. . . . . . . . . . . . . . . . . . . . . . . . Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4.3 Preventing Damage to Removable Drives . . . . . . . . . 4.4 Preventing Electrostatic Damage . . . . . . . . . . . . . . . . 4.