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FRU System Board UUID may show all "FF" in BIOS Setup Utility screen - ThinkCentre M70e


Some FRU System Boards UUID may show all "FF" as below. Press F1 key to enter LENOVO BIOS Setup Utility -> Main.

| Machine Type and Model     INVALID
| System Brand ID                  LENOVO
| System Serial Number         INVALID
| Asset Tag

Affected configurations

The above symptom may occur on the following systems:

  • ThinkCentre M70e

Additional Information:

  • The M70e System Board FRU P/N 71Y6942.

Do not replace any hardware for this issue.

Step 1. Download the BIOS package through the Lenovo support site.

Click here to download the BIOS package.

Flash BIOS update - ThinkCentre M70e, M60e
USB drive BIOS flash package ( All operating systems listed )

Step 2. Unzip the BIOS package to a DOS bootable USB key.
Use the following parameter to generate system UUID automatically:


Step 3. Perform usual Flash BIOS update operation using normal Flash BIOS update packages. You may need to update Machine Serial, In addition, Machine Type/Model.

If you do not have DOS bootable USB Memory key, you can perform generate the system UUID using the following steps:

  1. Power on system
  2. Press F12 key to invoke Startup Device Menu
  3. Insert Flash BIOS update CD then boot CD
  4. Press Ctrl-C to break


  • Alias ID: SF11-D0119
  • Document ID: HT051488
  • Last Updated :17 Jun 2014
  • © 2015 Lenovo