Chapter 3. Diagnostics; Checkout Procedure - IBM HS40 - BladeCenter - 8839 Maintenance And Troubleshooting Manual

Chapter 3. Diagnostics

This section provides basic troubleshooting information to help you solve some
common problems that might occur with the blade 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 107 for more
information.

Checkout procedure

Follow the checkout procedure for diagnosing hardware problems. Review the
following information before performing the checkout procedure:
v Read the safety information beginning on page 109.
v The IBM Enhanced Diagnostics programs test the major components of the
v When you run the diagnostic programs, a single problem might cause several
v Important:
© Copyright IBM Corp. 2004
blade server: the processor board, the input/output (I/O) board, Ethernet
controller, video controller, RAM, keyboard, mouse (pointing device), serial ports,
and hard disk drives. You can also use them to test some external devices. If you
are not sure whether a problem is caused by the hardware or by the software,
you can use the diagnostics programs to confirm that the hardware is working
correctly. The diagnostics programs are stored in the upgradeable read-only
memory (ROM). IBM Director provides a real-time diagnostics program that tests
the major components of the blade server while the server operating system is
running. The diagnostics can be downloaded from
http://www.ibm.com/pc/support/.
error messages. When this occurs, work to correct the cause of the first error
message. After the cause of the first error message is corrected, the other error
messages might not occur the next time you run the test.
1. If more than one error code is displayed, correct the first error. The other
error codes might not occur the next time you run the diagnostic programs.
2. If the server is suspended and a POST error code is displayed, see "POST
error codes" on page 79.
3. If the server is suspended and no error message is displayed, see "Error
symptoms" on page 87 and "Undetermined problems" on page 101.
4. For information about power-supply problems, see "Power error messages"
on page 97.
5. For intermittent problems, check the error log; see "POST error logs" on page
23 and "Diagnostic programs and error messages" on page 25.
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