Before You Call for Service
Many computer problems can be solved without outside assistance, by using the online help or by looking in the online or printed documentation that comes with your computer or software.
Also, be sure to read the information in any README files that come with your software.
Most computers, operating systems, and application programs come with documentation that contains troubleshooting procedures and explanations of error messages.
The documentation that comes with your computer also contains information about the diagnostic tests you can perform.
If you receive a POST error code when you turn on your computer, refer to the POST error-message charts in your hardware documentation.
If you do not receive a POST error code, but suspect a hardware problem, refer to the troubleshooting information in your hardware documentation or run the diagnostic tests.
If you suspect a software problem, consult the documentation (including README files) for the operating system or application program.