IBM Netfinity 3500 M10, User Handbook Manual

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Using diagnostic tools
Computer problems can be caused by hardware, software, or user
error (for example, pressing the wrong key). Using the diagnostic
aids discussed in this chapter, you might be able to solve such
problems yourself or gather helpful information you can pass on to
a service technician.
You can check the hardware by following the procedures in this
chapter. You can also use the diagnostic programs provided with
your server (see “IBM Enhanced Diagnostics” on page 191 for a
description of these programs).
If the hardware checks out OK, and you have not made a user error,
you might have a software problem. Consult the documentation
that comes with your software.
The following tools are available to diagnose hardware-related
problems:
Ÿ
Power-on self-test (POST)
Ÿ
Error messages
Ÿ
POST message charts
Ÿ
Troubleshooting charts
Ÿ
Diagnostic programs
Descriptions of these tools follow.
Power-on self-test (POST)
Each time you turn on your server, it performs a series of tests that
check the operation of the base computer. This series of tests is
called the power-on self-test (POST).
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Netfinity 3500 M10 User's Handbook