IBM ThinkPad i Series 1500 User Manual download pdf (Page 31)

Turn an additional 180 degrees after the screw head

touches the surface of the plastic part:

 Torque driver

If you have a torque driver, refer to the "Torque"

column with each step.

 Make sure you use the correct screw, and tighten all

screws firmly to the torque shown in the table if you

have a torque screwdriver. Never use a screw that

you removed. Use a new one. Make sure the

screws are tightened firmly.

System board/Inverter replacement

notice

Restoring the system unit serial number:

The EEPROM on the inverter contains vital product data

(VPD), such as the system unit serial number and the

system board serial number. You must restore the system

unit serial number to its original number when the system

board is replaced.

To restore the system unit serial number, do the following:

1. Install the ThinkPad CE Utility Diskette Version 1.60

and restart the computer.

2. Select 1. Set System Identification from the main

menu.

3. Select 2. Read S/N data from EEPROM.

Each serial number is displayed with its device type. Write

down the system unit serial number. The device type des-

ignations for each serial number are as follows:

 20: System unit serial number

 40: System board serial number

To restore the serial number after you have replaced the

system board, do the following:

1. Install the ThinkPad CE Utility Diskette Version 1.60

and restart the computer.

2. Select 1. Set System Identification from the main

menu.

3. Select 1. Add S/N data from EEPROM.

Follow the instructions on the screen.

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IBM ThinkPad i Series 1500 User Manual Page 31