Lenovo TC A51-8122 User Manual download pdf (Page 45)

6. Shut down or restart your computer.

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 for DOS Diagnostics” on page 25 to run diagnostics. Also, use

the Access IBM program for more information on problem solving.

– If the operating system will not start, have the computer serviced.

Code Description Action

135 Fan failure Have the computer serviced.

162 A change in device

configuration occurred.

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

than expected.

Add more memory to your computer

or use the Setup Utility to accept the

new memory amount.

If you cannot correct the problem,

have the computer serviced.

210 or 211 A keyboard error has occurred. Verify that:

v The keyboard is properly

connected.

v No keys on the keyboard are stuck.

you cannot correct the problem,

have the computer serviced.

Chapter 5. Troubleshooting and diagnostics 27

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Lenovo TC A51-8122 User Manual Page 45