Lenovo PC 300GL User Guide (including system setup and option in - Page 97

Troubleshooting, Using Diagnostic Tools

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Chapter 8. Troubleshooting 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 how to recover from a BIOS update failure. Note: If your computer does not start when you press the power switch, do the following: Make sure all cables are securely connected to the correct locations. Make sure the computer cover is installed properly (pushed all the way on). If this does not correct the problem, have the computer serviced. Using Diagnostic Tools 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" on page 116 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 came with IBM-preinstalled software, see the About Your Software publication 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: Error messages Power-on self-test (POST) Troubleshooting charts Diagnostic programs © Copyright IBM Corp. 1998 83

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Chapter 8.
Troubleshooting
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 how to recover from a BIOS update failure.
Note:
If your computer does not start when you press the power switch,
do the following:
±
Make sure all cables are securely connected to the correct
locations.
±
Make sure the computer cover is installed properly (pushed all
the way on).
If this does not correct the problem, have the computer serviced.
Using Diagnostic Tools
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” on page
116 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 came with IBM-preinstalled software, see the
About
Your Software
publication 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:
±
Error messages
±
Power-on self-test (POST)
±
Troubleshooting charts
±
Diagnostic programs
Copyright IBM Corp. 1998
83