Lenovo ThinkCentre A30 Quick Reference Manual page 45

Code Description
135 Fan failure
162 A change in device
configuration occurred.
164 System memory size is less
than expected.
210 or 211 A keyboard error has occurred.
250 The battery is defective.
270 or 271 Real time clock error
662 A change in configuration
occurred.
Action
Have the computer serviced.
Verify that:
v All external devices are turned on.
v All devices are properly installed
and securely connected.
Reload the default configuration
settings using the IBM Setup Utility.
If you cannot correct the problem,
have the computer serviced.
Add more memory to your computer
or use the IBM Setup Utility to accept
the new memory amount.
If you cannot correct the problem,
have the computer serviced.
Verify that:
v The keyboard is properly
connected.
v No keys on the keyboard are stuck.
If you cannot correct the problem,
have the computer serviced.
Replace the battery. See the battery
replacement procedure in your online
User Guide, which is available
through Access IBM.
Set the date and time using the IBM
Setup Utility.
If you cannot correct the problem,
have the computer serviced.
A diskette drive has been added or
removed.
v Restore the original hardware.
Or
v Accept the new configuration using
the IBM Setup Utility.
If you cannot correct the problem,
have the computer serviced.
Chapter 4. Troubleshooting and diagnostics
19