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Message: 01C9: More than one Ethernet devices are found. Remove one of them. Press <Esc> to
continue.
Solution: Your ThinkPad computer has a built-in Ethernet feature, and you cannot add another
such feature by installing an Ethernet device. If this error message is displayed,
remove the Ethernet device that you installed. Otherwise press Esc to ignore the
warning message. If this does not solve the problem, have the computer serviced.
Message: 0200: Hard disk error
Solution: The hard disk is not working. Make sure that the hard disk drive is attached firmly.
Run the BIOS Setup Utility; then make sure the hard disk drive is not disabled in the
Startup menu.
Message: 021x: Keyboard error
Solution: Make sure that there are no objects placed on the keyboard, or if you have one, the
external keyboard. Turn off the computer, and turn off all attached devices. Turn on
the computer first; then turn on the attached devices.
If you still see the same error code, do the following:
If an external keyboard is connected, do the following:
v Turn off the computer and disconnect the external keyboard; then turn on the
computer. Make sure that the built-in keyboard operates correctly. If it does, have
the external keyboard serviced.
v Make sure that the external keyboard is connected to the correct connector.
Test
the computer by using PC-Doctor.
v If the computer stops during the test, have the computer serviced.
Message: 0230: Shadow RAM error, 0231: System RAM error, 0232: Extended RAM error
Solution: Test your computer’s memory with PC-Doctor. If you added a memory module just
before turning the computer on, reinstall it. Then test the memory with PC-Doctor.
Message: 0250: System battery error
Solution: The backup battery, which is used to preserve the configuration information, such as
the date and time, while the computer is turned off, is depleted. Replace the battery
and run BIOS Setup Utility to verify the configuration. If you still have a problem,
have the computer serviced.
Message: 0251: System CMOS checksum bad
Solution: The system CMOS might have been corrupted by an application program. The
computer uses the default settings. Run BIOS Setup Utility to reconfigure the settings.
If you still see the same error code, have the computer serviced.
Message: 0271: Date and time error
Solution: Neither the date nor the time is set in the computer. Set the date and time, using the
BIOS Setup Utility.
Solving computer problems
14 ThinkPad
®
Z61 Service and Troubleshooting Guide