Lenovo ThinkCentre M51e (English, Danish, Norwegian, Finnish, Swedish) Quick r - Page 51
Error, codes
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Error codes The following table includes some of the more common error codes that might be displayed when your computer is performing the power-on self-test (POST). v Record error codes that are displayed. If you call for service, you will be asked for the error codes. v If there are multiple error codes, always work to solve problems in the order in which the error codes are displayed. Usually, solving the first error code will solve succeeding ones. v If the error code is not in the following table, more in-depth troubleshooting is required. - If the operating system starts when you turn on your computer, see "PC Doctor Dos Diagnostics" on page 25 to run diagnostics. Also, use Access IBM for more information on problem solving. - If the operating system will not start, have the computer serviced. Code 135 162 Description Fan failure A change in device 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 Setup Utility. If you cannot correct the problem, have the computer serviced. 164 System memory size is less Add more memory to your computer than expected. or use the Setup Utility to accept the new memory amount. 210 or 211 A keyboard error has occurred. 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. 250 The battery is defective. Replace the battery. See the battery replacement procedure in your online User Guide, which is available through Access IBM. Chapter 5. Troubleshooting and diagnostics 27