Chapter 6. Troubleshooting
This chapter describes diagnostic tools that you can use to identify and correct problems that might come up as you use your computer. This chapter also contains information about option diskettes and how to recover from a BIOS update failure.
Note
If your computer does not start when you press the power button, do the following:
•Make sure your computer is connected to a working electrical outlet.
•Make sure all cables are securely connected to the correct connectors.
If this does not correct the problem, have the computer serviced.
Computer problems can be caused by hardware, software, or user error (for example, erasing the wrong file). 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” on page 64 for a description of these programs).
If you do not identify a hardware problem and 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
The following tools are available to diagnose
•
•Troubleshooting procedure
•Error codes and messages
•Troubleshooting charts
•IBM Enhanced Diagnostics program
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