IBM ThinkPad 2644, Руководство по техническому обслуживанию аппаратной части

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FRU REPLACEMENT NOTICES
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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 replacement notice
Restoring the system unit serial number:
The EEPROM on the system board 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 Hardware Maintenance Diskette
Version 1.60 and restart the computer.
2. Select 1. Set System Identification from the main
menu.
3. Verify the system unit serial number displayed. If it is
incorrect, type the correct number on the panel.
Notes
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Do not power-off the computer during the
restoration process.
Ÿ
The serial number label is attached to the bottom
of the computer.
When the computer was manufactured, the EEPROM on
the system board was loaded with the serial numbers of
the system and all major components. The EEPROM
contains the following serial numbers:
Ÿ
System board serial number
Ÿ
System unit serial number
You must restore the system unit serial number to its
original value when replacing the system board.
Introduction
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