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b Maintenance and Service Guide Compaq Notebook Evo N160 Series Document Part Number: 260552-001 October 2001 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. © 2001 Compaq Computer Corporation Compaq, Evo, and the Compaq logo are trademarks of Compaq Information Technologies Group, L.P. Microsoft and Windows are trademarks of Microsoft Corporation. Intel, Pentium, and Celeron are trademarks of Intel Corporation. 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 October 2001 Document Part Number: 260552-001 Contents 1 Product Description Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­2 1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­8 1.2 Clearing a Password. . . . . . . . . . . . . . . . . . . . . . . . . 1­10 1.3 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . 1­11 1.4 Computer External Components . . . . . . . . . . . . . . . 1­12 1.5 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1­22 2 Troubleshooting Using the PhoenixBIOS Setup Utility . . . . . . . . . . . . . . . 2­1 Troubleshooting Flowcharts. . . . . . . . . . . . . . . . . . . . . . . 2­2 Initial Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 2­3 2.2 No Power, Part 1 . . . . . . . . . . . . . . . . . . . . . . . . . 2­4 2.3 No Power, Part 2 . . . . . . . . . . . . . . . . . . . . . . . . . 2­5 2.4 No Power, Part 3 . . . . . . . . . . . . . . . . . . . . . . . . . 2­6 2.5 No Power, Part 4 . . . . . . . . . . . . . . . . . . . . . . . . . 2­7 2.6 No Video, Part 1 . . . . . . . . . . . . . . . . . . . . . . . . . 2­8 2.7 No Video, Part 2 . . . . . . . . . . . . . . . . . . . . . . . . . 2­9 2.8 Nonfunctioning Docking Station (if applicable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2­10 2.9 No Operating System (OS) Loading . . . . . . . . . 2­11 2.10 No OS Loading from Hard Drive, Part 1. . . . . 2­12 2.11 No OS Loading from Hard Drive, Part 2. . . . . 2­13 2.12 No OS Loading from Hard Drive, Part 3. . . . . 2­14 2.13 No OS Loading from Diskette Drive. . . . . . . . 2­15 2.14 No OS Loading from CD- or DVD-ROM Drive . . . . . . . . . . . . . . . . . . . . . . . . . . 2­16 2.15 No Audio, Part 1 . . . . . . . . . . . . . . . . . . . . .