Lenovo V460 Laptop Lenovo IdeaPad V460 Hardware Maintenance Manual - Page 42

Reading or writing the ECA information

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IdeaPad V460 Hardware Maintenance Manual Reading or writing the ECA information Information on Engineering Change Announcements (ECA) are stored in the EEPROM of the system board. The electronic storage of this information simplifies the procedure to check if the ECA has been previously applied to a machine. The machine does not need to be disassembled to check for the ECA application. To check what ECAs have been previously applied to the machine, enable the ECA Information Read/Write function on the CE Utility Diskette for Lenovo IdeaPad notebooks. 1. Insert the CE Utility Diskette for Lenovo IdeaPad notebooks, and restart the computer. 2. From the main menu, select 6. Set ECA Information. 3. To read ECA information, select 2. Read ECA/rework number from EEPROM and follow the instructions. 4. To read box build date, select 5. Read box build date from EEPROM, and follow the instructions on the screen. After an ECA has been applied to the machine, the EEPROM must be updated to reflect the ECA's application. Apply the CE Utility Diskette for Lenovo IdeaPad notebooks to update the EEPROM. Note: Only the ECA number is stored in the EEPROM. The machine type of the ECA is assumed as the same as that of the machine which had the ECA applied to it. 1. Insert the CE Utility Diskette for Lenovo IdeaPad notebooks, and restart the computer. 2. From the main menu, select 6. Set ECA Information. 3. To write ECA information, select 1. Write ECA/rework number from EEPROM, and follow the instructions. 4. To write box build date, select 4. Write box build date from EEPROM, and follow the instructions 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. 38

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IdeaPad V460 Hardware Maintenance Manual
Reading or writing the ECA information
Information on Engineering Change Announcements (ECA) are stored in
the EEPROM of the system board. The electronic storage of this information
simplifies the procedure to check if the ECA has been previously applied to a
machine. The machine does not need to be disassembled to check for the ECA
application.
To check what ECAs have been previously applied to the machine, enable
the ECA Information Read/Write function on the CE Utility Diskette for Lenovo
IdeaPad notebooks.
1. Insert the CE Utility Diskette for Lenovo IdeaPad notebooks, and restart the
computer.
2. From the main menu, select
6. Set ECA Information
.
3. To read ECA information, select
2. Read ECA/rework number from
EEPROM
and follow the instructions.
4. To read box build date, select
5. Read box build date from EEPROM
, and
follow the instructions on the screen.
After an ECA has been applied to the machine, the EEPROM must be updated
to reflect the ECA’s application. Apply the CE Utility Diskette for Lenovo
IdeaPad notebooks to update the EEPROM.
Note:
Only the ECA number is stored in the EEPROM. The machine type of
the ECA is assumed as the same as that of the machine which had the ECA
applied to it.
1. Insert the CE Utility Diskette for Lenovo IdeaPad notebooks, and restart the
computer.
2. From the main menu, select
6. Set ECA Information
.
3. To write ECA information, select
1. Write ECA/rework number from
EEPROM
, and follow the instructions.
4. To write box build date, select
4. Write box build date from EEPROM
, and
follow the instructions 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.