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Chapter 4. Troubleshooting
This section provides additional information that is needed to troubleshoot servers
that are merged into a 16-way configuration. See the Troubleshooting Guide on the
IBM xSeries Documentation CD or the Installation Guide for the xSeries 440 server
for general information.
Diagnostic tools overview
The following tools are available to help you identify and resolve hardware-related
problems:
v POST beep codes
v Troubleshooting charts
v Diagnostic programs and error messages
POST beep code descriptions
One beep
Indicates successful completion of POST.
Repeating long beeps
Indicates that a memory error has occurred. Ensure that all DIMMs are correctly
installed.
One long beep and two short beeps
Indicates that a video error has occurred and the BIOS code cannot initialize the
video screen to display any additional information.
Note: When turning on the 16-way configuration, you might hear this beep code if
no video device is connected to the secondary server. This is an acceptable action.
© Copyright IBM Corp. 2003
The power-on self-test beep codes indicate the detection of a problem.
– One beep indicates successful completion of POST.
– More than one beep indicates that POST detected a problem. Error messages
also appear during startup if POST detects a hardware-configuration problem.
See "POST beep code descriptions" and the Troubleshooting Guide on the IBM
xSeries Documentation CD for more information.
These charts list problem symptoms and steps to correct the problems. See the
"Troubleshooting charts" on page 19 for more information.
The system diagnostic programs are provided in ROM. These programs test the
major components of your server.
Notes:
1. The diagnostic programs and error messages are specific to each server.
When running diagnostics and reading error messages of two merged
servers, be sure that you know which server gave the error before attempting
any repairs or changing any settings.
2. Refer to the Troubleshooting Guide on the IBM xSeries 440 Documentation
CD or more information.
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Table of Contents
Troubleshooting
