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HP PCs - System Board (00A) Error Displays on a Black Screen

This document pertains to HP PCs with Unified Extensible Firmware Interface (UEFI) beginning in late 2008.
On startup, one of the following warning messages displays, indicating that the system has found an invalid serial number:
Figure : Product Information not valid error message (newer PC models)
Identifying the invalid or missing product information error
Figure : Product Information not valid error message (older PC models)
Product Information not valid error message
Product Information not valid
The following product information programmed into the system board is missing or invalid.
System Board (00A) - Product Configuration
You might see this message after the system board is replaced. The message indicates that the serial number was not entered, or was entered incorrectly, after replacing the system board or other component.
Contact HP to service the computer.

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