Lenovo 9443XAU - ThinkPad Z61t 9443 Hardware Maintenance Manual page 60

FRU replacement notices
To check what ECAs have been previously applied to the machine, use the ECA
Information Read/Write function on the ThinkPad Hardware Maintenance Diskette
Version 1.73 or later.
1. Insert the ThinkPad Hardware Maintenance Diskette Version 1.73 or later, and
2. From the main menu, select 6. Set ECA Information.
3. To read ECA information, select 2. Read ECA/rework number from EEPROM
4. To read box build date, select 5. Read box build date from EEPROM, and
After an ECA has been applied to the machine, the EEPROM must be updated to
reflect the ECA's application. Use the ThinkPad Hardware Maintenance Diskette
Version 1.73 or later to update the EEPROM.
Note: Only the ECA number is stored in the EEPROM. The machine type of the
1. Insert the ThinkPad Hardware Maintenance Diskette Version 1.73 or later, and
2. From the main menu, select 6. Set ECA Information.
3. To write ECA information, select 1. Write ECA/rework number from EEPROM,
4. To write box build date, select 4. Write box build date from EEPROM, and
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.
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MT 8747, 8749, 9440, 9441, 9442, 9443, and 9448
restart the computer.
and follow the instruction.
follow the instruction on the screen.
ECA is assumed be the same as the machine type of the machine that had
the ECA applied to it.
restart the computer.
and follow the instruction.
follow the instruction on the screen.