use the troubleshooting charts in this section to find solutions to problems that have definite symptoms.

    if diagnostic error messages are displayed that are not listed in the following table, make sure that the latest level of bios code is installed.

    see “starting the diagnostic programs and viewing the test log” on page 80 to test the computer. if you have run the diagnostic test programs or if running the tests does not detect the problem, call for service.

    if you have just added new software or a new option and the computer is not working, complete the following steps before using the troubleshooting chart:

    1. remove the software or device that you just added.

    2. run the diagnostic tests to determine whether the computer is running correctly.

    3. reinstall the new software or new device.