Chapter 5. Solving problems
This section provides basic troubleshooting information to help you resolve some
common problems that might occur while setting up your server.
If you cannot locate and correct the problem using the information in this section,
see the Hardware Maintenance Manual and Troubleshooting Guide on the IBM
xSeries Documentation CD for more information.
Diagnostic tools overview
The following tools are available to help you identify and resolve hardware-related
problems:
v
POST beep codes
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 Hardware Maintenance Manual and
Troubleshooting Guide on the IBM xSeries Documentation CD for more
information.
v
Troubleshooting charts
These charts list problem symptoms and steps to correct the problem. See the
“Troubleshooting chart” on page 30 for more information.
v
Diagnostic programs and error messages
The system diagnostic programs are provided in ROM. These programs test the
major components of your server. See the Hardware Maintenance Manual and
Troubleshooting Guide on the IBM xSeries Documentation CD for more
information.
v
Light Path Diagnostics feature
Use the Light Path Diagnostics feature to identify system errors quickly. See the
Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries
Documentation CD for more information.
POST beep code descriptions
POST emits one beep to signal successful completion. If POST detects a problem
during startup, other beep codes might occur. You can use the following beep code
descriptions to help identify and resolve problems that are detected during startup.
Note: See the Hardware Maintenance Manual and Troubleshooting Guide on the
IBM xSeries Documentation CD for more information about the POST beep
codes.
Table 3. POST beep code descriptions
Beep code
Descriptions of the POST beep codes
No beep
Call for service.
Continuous
If no video appears, the startup microprocessor failed. Verify that the startup microprocessor is
installed correctly. If it is, call for service.
© Copyright IBM Corp. 2002
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