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FRU Service Procedures (TP 380Z-2635 / 560Z-2640)



FRU Service Procedures

Review the following procedures before replacing any FRUs.

Replacing the System Board

Restoring the System Unit Serial Number 

The system unit serial number is written on the label attached to the bottom cover of the computer and is also stored as vital product data (VPD) in the EEPROM on the system board.
When you replace the system board, you must set the system unit serial number on the new system board to its original number as follows:
  1.  Press and hold F1 and power on the computer.
  2.  Hold down F1 until the Easy-Setup menu appears.
  3.  Click on Config.
  4.  Press Ctrl+N. The System Unit Serial Number menu appears.
  5.  Follow the instructions on the menu.


NOTE:
  1.  Do not power-off the computer during the restoring process.


Updating the Universally Unique IDentifier (UUID)

The Universally Unique IDentifier (UUID) is a 128-bit number uniquely assigned to your computer at production and stored in the EEPROM of your system board. The algorithm that generates the unique number is designed to provide unique IDs until the year 3400 A.D. Consequently, no two computers in the world have the same number.

When you replace the system board, you must set the UUID on the new system board as follows:
  1.  Press and hold F1 and power on the computer.
  2.  Hold down F1 until the Easy-Setup menu appears.
  3.  Click on Config.
  4.  Press Ctrl+G. The UUID menu appears.
  5.  Press F5 to generate a new UUID and press Enter to  overwrite it to the EEPROM.

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