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Maintenance &
Service Guide
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TroubleshootingThis section provides troubleshooting information for the Compaq Presario 2250, 2510, 2410 ES, and 4240 ES Series Computers. Adherence the procedures and precautions described in this section is essential for proper service. The basic steps for troubleshooting include: 1. Clearing CMOS. 3. If you are unable to run POST you may Troubleshoot without Diagnostics. 4. Run the Compaq Utilities Test
Program. Diagnostic error codes occur if the system recognizes a problem while
running the Compaq Utilities. These error codes help identify possible defective
subassemblies.
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