the system diagnostic programs are stored on the device drivers and ibm enhanced diagnostics cd that comes with your computer. these programs are the primary method of testing the major components of your computer and assist in isolating problems in the computer hardware and software. the diagnostic programs run independently of the operating system and must be run from either a cd or diskette.

    this diskette, known as an ibm enhanced diagnostics diskette, can be created using access ibm. you can also download the latest version of the diagnostics programs from http://www.ibm.com/pc/support on the world wide web and use the downloaded file to create an ibm enhanced diagnostics diskette. see “using an ibm enhanced diagnostics diskette” on page 87 for instructions.

    when using diagnostics with a usb keyboard and mouse attached, first go into the configuration/setup utility and enable usb emulation.

    1. restart the computer and press f1 to access the configuration/setup utility.

    2. select devices and i/o ports.

    3. select usb setup.

    4. make sure usb keyboard and mouse are enabled.

    diagnostic error messages indicate that a problem exists; they are not intended to be used to identify a failing part. troubleshooting and servicing complex problems that are indicated by error messages should be performed by trained service personnel.

    sometimes the first error to occur causes additional errors. in this case, the computer displays more than one error message. always follow the suggested action instructions for the first error message that appears.

    the following sections contain the error codes that might be displayed in the detailed test log and summary log, when running the diagnostic programs.

    the error code format is as follows:

    fff-ttt-iii-date-cc-text message

    where:

    fff is the three-digit function code that indicates the function being tested when the error occurred. for example, function code 201 is for memory.

    ttt is the three-digit failure code for the exact test failure. (these codes are for trained service personnel and are described in the hardware maintenance manual.)

    iii is the three-digit device id. (these codes are for trained service personnel and are described in the hardware maintenance manual.)

    date is the date that the diagnostic test was run and the error recorded.

    cc are the check digits that are used to verify the validity of the information.

    text message is the diagnostic message that indicates the reason for the problem.