IBM ThinkPad 755CX Manual page 223

Message
POST error prompt.
Error prompt.
A screen or message that
is not listed.
An error was found during the POST. Press Enter; then select Start from the
test menu to run the test.
If the test ends with an error, make a note of the error code and have the
computer serviced.
Turn off the computer and start Easy-Setup; then select Test to test the
computer.
You can start the operating system by pressing F1 instead and ignore the error.
Turn off the computer and start Easy-Setup; then select Test to test the
computer.
If you cannot start Easy-Setup, have the computer serviced.
What If Your Computer Does Not Work?
Action
Chapter 8. Solving Computer Problems
207