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Chapter 6. Solving problems
This chapter provides basic troubleshooting information to help you solve some
common problems that might occur while you are setting up the server.
If you cannot locate and correct the problem using the information in this chapter,
see Appendix A, "Getting help and technical assistance," on page 55, the Hardware
Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation
CD, and the "Server Support" flowchart in the front of this document.
Diagnostic tools overview
The following tools are available to help you diagnose and solve hardware-related
problems:
v POST beep codes
v Troubleshooting charts
v Diagnostic programs and error messages
v Light path diagnostics
POST beep code descriptions
POST emits one beep to signal successful completion. If POST detects a problem
during startup, other beep codes might occur. Use the following beep code
descriptions to help diagnose and solve 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.
One beep
Repeating long beeps
© Copyright IBM Corp. 2005
The power-on self-test beep codes indicate the detection of a problem.
– One beep indicates successful completion of POST, with no errors.
– 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.
These charts list problem symptoms and steps to correct the problems. See
"Troubleshooting charts" on page 46 for more information.
The system diagnostic programs are provided in electrically erasable
programmable ROM (EEPROM) that is shared with BIOS. These programs test
the major components of the server. See the Hardware Maintenance Manual and
Troubleshooting Guide on the IBM xSeries Documentation CD for more
information.
Use light path diagnostics to diagnose system errors quickly. See "Light path
diagnostics" on page 51 for more information.
POST was completed successfully without finding any errors.
A memory error has occurred. Make sure that all DIMMs are correctly
installed.
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