JOcean
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Re: Latitude D400 service tag

The fact that you did not purchase from Dell probably means it is not registered. Have you called Dell tech support yet as they can help. Also check the service tag in the BIOS to make sure it matches the label on the system. Restart the system and at the Dell splash screen start tapping F2. The service tag number will be in the BIOS. The following post may give more information.

https://www.dell.com/community/Monitors/Service-Tag-not-found-and-product-registration-issues/td-p/5...




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