Diagnostic Programs - IBM eServer 240 xSeries User Reference Manual

POST error messages
POST error messages occur during startup when POST finds a problem with the
hardware or detects a change in the hardware configuration. For more information,
see "Power-on self-test (POST) messages" on page 112.
Diagnostic error messages
Diagnostic error messages occur when a test finds a problem with the server
hardware. These error messages are alphanumeric, and they are saved in the test
log. For more information, see "Diagnostic error message tables" on page 125.
Software-generated error messages
These messages occur if a problem or conflict is found by an application program,
the operating system, or both. Messages are generally text messages, but they
also can be numeric. For information about these error messages, refer to the
documentation that comes with your software.
Troubleshooting charts
The "Troubleshooting charts" on page 143 list symptoms of problems (for example,
a symptom might be "The mouse or pointing device does not work."), along with
steps to correct the problems.
System error log
The system error log contains all error and warning messages issued during POST
and all system status messages from the Advanced System Management
Processor. See "System Event/Error Log" on page 29 for information about how to
view the system error log.
Option diskettes
An optional device or adapter might come with an option diskette. Option diskettes
usually contain option-specific diagnostic test programs or configuration files.
If your optional device or adapter comes with an option diskette, follow the
instructions that come with the option. Different instructions apply depending on
whether the option diskette is startable or not.

Diagnostic programs

This section includes useful information about running the diagnostic programs.
These programs are designed to test the IBM server. If you want to test a non-IBM
product, refer to the information that comes with that product.
Note: When you run the diagnostic programs, a single problem might cause
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IBM xSeries User's Reference
several error messages. When this occurs, work to correct the cause of the
first error message. After the cause of the first error message is corrected,
the other error messages usually will not occur the next time you run the
test.