Diagnostic Tools Overview
Getting Started
If you are not familiar with the diagnostic tools, continue reading
the following sections. If you are familiar with these topics, select
the appropriate instructions from the list below:
To interpret an error message (for example, you have a 162 on
the screen), go to “Error Messages” on page 140.
For more information about a hardware failure (for example,
keys on the keyboard not working) or a screen prompt, go to
“Troubleshooting” on page 161.
Diagnostic Tools Overview
The following tools are available to help identify and resolve
hardware-related problems:
Power-on self-test (POST)
POST beep codes
Test programs
Error messages
Troubleshooting charts
Option Diskettes
Power-On Self-Test (POST)
When you turn on the system, it performs a series of tests to check
the operation of the system and some options. This series of tests is
called the power-on self-test, or POST.
POST does the following:
Checks some basic system-board operations
Checks the memory operation
Compares the current system configuration with the stored
system configuration information
Starts the video operation
Verifies that the diskette drive is working
Verifies that the hard disk drive is working
While the memory is being tested, the amount of available memory
and the
KB OK
message appear on the screen. These numbers
Chapter 4. Solving Problems
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