Lenovo ThinkPad 770 Hardware Maintenance Manual for 770 series notebooks(Janua - Page 27

SERUPDT.EXE is in the ThinkPad Hardware, The Universally Unique IDentifier UUID is - hard drive

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FRU REPLACEMENT NOTICES You must restore each of those serial numbers except the system board serial number to its original number when replacing the system board. To save the original serial numbers, do the following: 1. Boot from DOS, or open an MS-DOS prompt. 2. Insert the ThinkPad Hardware Maintenance Diskette Version 1.05 into the diskette drive. 3. Enter A:\SERUPDT.EXE at the DOS prompt. The usage of this tool is displayed. Note SERUPDT.EXE is in the ThinkPad Hardware Maintenance Diskette Version 1.05 or a later version. 4. Enter SERUPDT R Each serial numbers is displayed with its device type. Write down all numbers except the system board serial number. The device type designations for the each serial number are as follows: 08: CPU card serial number 20: System unit serial number 38: DC-DC card serial number 40: System board serial number 78-7F: Hard disk drive serial number Note You can disregard the hard disk drive serial number. To restore the serial numbers, do the following: 1. Boot from DOS, or open a MS-DOS prompt. 2. Enter SERUPDT.EXE at the DOS prompt. The usage of this tool is displayed. 3. Enter SERUPDT W nn SSSSSSS for each serial number you saved. Notes 1. nn is the device type, and SSSSSSS is the serial number. 2. The system unit serial number is written in the label attached on the bottom of the computer. 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. Consequently, no two computers in the world have the same number. General Descriptions 21

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FRU REPLACEMENT NOTICES
You must restore each of those serial numbers except the
system board serial number to its original number when
replacing the system board.
To save the original serial numbers, do the following:
1.
Boot from DOS, or open an MS-DOS prompt.
2.
Insert the ThinkPad Hardware Maintenance Diskette
Version 1.05 into the diskette drive.
3.
Enter
A:
\
SERUPDT.EXE
at the DOS prompt.
The usage of this tool is displayed.
Note
SERUPDT.EXE is in the ThinkPad Hardware
Maintenance Diskette Version 1.05 or a later
version.
4.
Enter
SERUPDT R
Each serial numbers is displayed with its device type.
Write down all numbers except the system board
serial number.
The device type designations for the
each serial number are as follows:
08:
CPU card serial number
20:
System unit serial number
38:
DC-DC card serial number
40:
System board serial number
78–7F:
Hard disk drive serial number
Note
You can disregard the hard disk drive serial
number.
To restore the serial numbers, do the following:
1.
Boot from DOS, or open a MS-DOS prompt.
2.
Enter
SERUPDT.EXE
at the DOS prompt.
The usage of this tool is displayed.
3.
Enter
SERUPDT W nn SSSSSSS
for each serial number
you saved.
Notes
1.
nn
is the device type, and
SSSSSSS
is the
serial number.
2.
The system unit serial number is written in
the label attached on the bottom of the
computer.
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.
Consequently, no two computers in the world have the
same number.
General Descriptions
21