IBM ThinkPad i Series 1400, Руководство по техническому обслуживанию аппаратной части

Страница: 31 / 172

Turn an additional 180 degrees after the screw head
touches the surface of the plastic part:
Ÿ
Torque driver
If you have a torque driver, refer to the "Torque"
column with each step.
Ÿ
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:
Ÿ
20: System unit serial number
Ÿ
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.
22
ThinkPad i Series 1400/1500 HMM