Lenovo ThinkPad T450 (English) Hardware Maintenance Manual - ThinkPad T450 - Page 64

Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key

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1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer. 2. From the main menu, select 6. Set ECA Information. 3. To write the ECA information, select 1. Write ECA/rework number from EEPROM, and follow the instruction; To write box build date, select 4. Write box build date from EEPROM, and follow the instruction on the screen. If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible. 58 Hardware Maintenance Manual

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1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key,
and then restart the computer.
2. From the main menu, select
6. Set ECA Information
.
3. To write the ECA information, select
1.WriteECA/reworknumberfromEEPROM
, and follow the
instruction; To write box build date, select
4.WriteboxbuilddatefromEEPROM
, and follow the
instruction on the screen.
If the system board is being replaced, try to read the ECA information from the old system board and transfer
the information to the new system. If the system board is inoperable, this will not be possible.
58
Hardware Maintenance Manual