Madge Networks 1200 - Manual (Page 34)

You must restore the system unit serial number to its
original number when the LCD module or inverter is
replaced.
To restore the system unit serial number, do the following:
1. Install the ThinkPad CE Utility Diskette and restart the
computer.
2. Select 3. VPD Data Utility from the main menu.
3. Select 1. Read VPD data to verify the system unit
serial number displayed.
4. If it is incorrect, select 2. Write VPD data and then
select 2. Write BoxSerial number to type the correct
serial number on the panel.
Notes:
1. Do not power-off the computer during the restoration
process.
2. The serial number label is attached to the bottom of
the computer.
To restore the planar serial number after you have
replaced the system board, LCD module or LCD inverter,
do the following:
1. Install the ThinkPad CE Utility Diskette and restart the
computer.
2. Select 3. VPD Data Utility from the main menu.
3. Select 1. Read VPD data to verify the planar serial
number displayed.
4. If it is incorrect, select 2. Write VPD data and then
select 2. Write BoxSerial number to type the correct
serial number on the panel.
Thermal Sensor
The system is equipped with sensors to protect against
system overheating. By setting system and processor
thermal thresholds, the system can turn on the cooling fan,
slows sown, stop the CPU or shut down automatically
when temperatures reach the defined threshold
parameters.
System experiencing frequent auto sensor shutdown may
need to reset the thermal sensor threshold and execute
the fan test to ensure the normal operation of the cooling
fan.
Follow the steps below to set thermal threshold:
1. Install the ThinkPad CE Utility Diskette and restart the
computer.
2. Select 2. Thermal Sensor Utility from the main menu.
24 ThinkPad i Series 1200/1300 HMM