Lenovo ThinkPad X23 ThinkPad X20, X21, X22, X23, X24 Hardware Maintenance Manu - Page 60

Retaining the UUID, Set System, Identification., Add S/N data from EEPROM., Assign UUID

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After you have replaced the system board, restore the serial number by doing the following: 1. Install the ThinkPad Hardware Maintenance Diskette Version 1.60 and restart the computer. 2. From the main menu, select 1. Set System Identification. 3. Select 1. Add S/N data from EEPROM. Follow the instructions on the screen. Note: The serial number of the system unit is written on the label attached on the bottom of the computer. Retaining the 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 A.D. 3400. 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. Install the ThinkPad Hardware Maintenance Diskette Version 1.60, and restart the computer. 2. Select 4. Assign UUID from the main menu. A new UUID is created and written. If a valid UUID already exists, it is not overwritten. 56 ThinkPad X20, X21, X22, X23, X24

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After you have replaced the system board, restore the
serial number by doing the following:
1.
Install the ThinkPad Hardware Maintenance Diskette
Version 1.60 and restart the computer.
2.
From the main menu, select
1. Set System
Identification.
3.
Select
1. Add S/N data from EEPROM.
Follow the instructions on the screen.
Note:
The serial number of the system unit is written
on the label attached on the bottom of the
computer.
Retaining the 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 A.D. 3400. 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.
Install the ThinkPad Hardware Maintenance Diskette
Version 1.60, and restart the computer.
2.
Select
4. Assign UUID
from the main menu. A new
UUID is created and written. If a valid UUID already
exists, it is not overwritten.
56
ThinkPad X20, X21, X22, X23, X24