Lenovo ThinkPad 390X User's Reference: ThinkPad 390X - Page 125

Error Codes or Messages - cmos battery

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Troubleshooting Charts Error Codes or Messages The following table contains error codes or messages and specified action to take. Note: In the charts, x or n can be any character. Problem 0200 (Failure Fixed Disk) 021x (Keyboard error) 023x (Memory error), 0281 (Memory size error) 0250 (System battery is dead - Replace and run SETUP) 0251 (System CMOS checksum bad - Default configuration used) Action Do the following:. 1. Turn off the computer. 2. Remove, then re-install the hard disk drive securely. See the "Upgrading the Hard Disk Drive" on page 57. 3. Turn on the computer. If you still have a problem, have the computer serviced. Make sure no object is placed on the keyboard or on the external keyboard, if you have one; also check for stuck keys. Power off the computer and power off all attached devices. Power on the computer first; then power on the attached devices. If you still have a problem, do the following: If an external keyboard is connected, do the following: - Turn off the computer and disconnect the external keyboard; then turn on the computer. Make sure that your keyboard operation is correct. If it is, have the external keyboard serviced. Otherwise, have the computer serviced. - Make sure that the external keyboard is connected to the correct connector if connected to computer using the keyboard/mouse cable. Verify that the DIMM option is correctly installed; otherwise, contact your IBM reseller or IBM marketing representative for a replacement. The computer may also need to be serviced. The CMOS clock battery needs to be replaced. Have the computer serviced. The CMOS may have been corrupted or modified incorrectly. Enter the BIOS Setup Utility and load the default settings; then restart the computer. If you still have a problem, have the computer serviced. Solving Computer Problems 109

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Troubleshooting Charts
Error Codes or Messages
The following table contains error codes or messages and specified
action to take.
Note:
In the charts,
x
or
n
can be any character.
Problem
Action
0200 (Failure Fixed Disk)
Do the following:.
1. Turn off the computer.
2. Remove, then re-install the hard disk drive securely. See the
“Upgrading the Hard Disk Drive” on page
57.
3. Turn on the computer.
If you still have a problem, have the computer serviced.
021x (Keyboard error)
Make sure no object is placed on the keyboard or on the
external keyboard, if you have one; also check for stuck keys.
Power off the computer and power off all attached devices.
Power on the computer first; then power on the attached
devices.
If you still have a problem, do the following:
±
If an external keyboard is connected, do the following:
–
Turn off the computer and disconnect the external key-
board; then turn on the computer. Make sure that your
keyboard operation is correct. If it is, have the external
keyboard serviced. Otherwise, have the computer ser-
viced.
–
Make sure that the external keyboard is connected to the
correct connector if connected to computer using the
keyboard/mouse cable.
023x (Memory error), 0281 (Memory size
error)
Verify that the DIMM option is correctly installed; otherwise,
contact your IBM reseller or IBM marketing representative for a
replacement.
The computer may also need to be serviced.
0250 (System battery is dead – Replace
and run SETUP)
The CMOS clock battery needs to be replaced. Have the com-
puter serviced.
0251 (System CMOS checksum bad –
Default configuration used)
The CMOS may have been corrupted or modified incorrectly.
Enter the BIOS Setup Utility and load the default settings; then
restart the computer.
If you still have a problem, have the com-
puter serviced.
Solving Computer Problems
109