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ThinkCentre M73 (type 10AX, 10AY) "Tiny Form Factor" desktop produced circa 2013-2017.

System error when turned on

My pc shows an error message when turned on about product patents, client Mac address.

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  • BIOS/UEFI configuration issue
    • If the system can’t find a valid boot drive, it tries to boot over the network (PXE boot). That’s when you see Client MAC address and patent/product messages.
  • Missing/Corrupted DMI (Desktop Management Interface) info
    • Sometimes after a motherboard replacement or BIOS reset, system-specific info (like product number, serial number, etc.) isn’t written to the BIOS properly. HP, Dell, and Lenovo systems often throw “Product Information Not Valid” errors in that case.
  • Hard Drive / Boot Device issue
    • If your storage drive isn’t detected or has failed, the PC skips to network boot.

How to Fix-

  1. Check Boot Order
    • Enter BIOS/UEFI (usually press F2, F10, ESC, or DEL at startup).
    • Ensure your hard drive/SSD is listed as the first boot device, not “Network Boot” or PXE.
  2. Reconnect Storage Drive
    • Power off the PC, reseat the HDD/SSD cables (or NVMe drive) to ensure it’s properly connected.
  3. Reset BIOS
    • In BIOS, look for “Load Optimized Defaults” or “Reset to Defaults” and save.
  4. Check for DMI/Serial Info
    • If the error mentions product patents or product info not valid, it may require reprogramming the system board information (usually only a service center or manufacturer tool can do this).
  5. Disable PXE Boot
    • If you don’t use network booting, disable PXE/Network Boot from BIOS.

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Gaone zal eeuwig dankbaar zijn.
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