Chapter 8. Solving Problems
This chapter describes diagnostic tools that are available to you. You can use these
tools to identify and correct problems that might come up as you use your
computer. This chapter also contains information about option diskettes and
terminate-and-stay-resident (TSR) programs.
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 computer (see “IBM Enhanced
Diagnostics” on page 106 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. If you suspect that you have a software problem and
your computer came with IBM-preinstalled software, see About Your Software and
the operating system documentation supplied with your computer. If you have
installed software applications yourself, see the documentation supplied with the
software.
The following tools are available to diagnose hardware-related problems:
Power-on self-test (POST)
Error messages
POST message charts
Troubleshooting charts
Diagnostic programs
Descriptions of these tools follow.
Power-On Self-Test (POST)
Each time you turn on your computer, 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).
Copyright IBM Corp. 1998
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