Chapter 6. Troubleshooting
This chapter describes diagnostic tools that you can use to identify and correct
problems that might arise. This chapter also contains information about option
diskettes and how to recover from a BIOS update failure.
Computer problems can be caused by hardware, software, or user error (for
example, pressing the wrong key). You can use the diagnostic aids discussed in
this chapter to help you solve such problems yourself or gather helpful
information you can pass on to a service technician.
Computer problems can be caused by hardware, software, or user error (for
example, pressing the wrong key). You can use the diagnostic aids discussed in
this chapter to help you 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 program” on page 94 for a description of these
programs).
If the hardware checks out, 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 comes with IBM-preinstalled software, see “IBM Enhanced
Diagnostics program” on page 94 for information about how to run the IBM
Enhanced Diagnostics program provided by IBM. Also see 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:
v Power-on self-test (POST)
v Troubleshooting procedure
v Error codes and messages
v Troubleshooting charts
v IBM Enhanced Diagnostics program
Troubleshooting procedure
Use this procedure as a starting point for problem identification.
1. To begin troubleshooting, perform the following steps:
a. Remove all diskettes and CDs from the drives.
b. Turn off the computer and wait for a few seconds.
© Copyright IBM Corp. 2000 71
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