About the checkout procedure

Before you perform the checkout procedure for diagnosing hardware problems, review the following information:

• Read Safety and Installation guidelines.
• The diagnostic programs provide the primary methods of testing the major components of the blade server. If you are not sure whether a problem is caused by the hardware or by the software, you can use the diagnostic programs to confirm that the hardware is working correctly.
• When you run the diagnostic programs, a single problem might cause more than one error message. When this happens, correct the cause of the first error message. The other error messages usually will not occur the next time you run the diagnostic programs.
• If the blade server is halted and a POST error code is displayed, see POST/UEFI diagnostic codes. If the blade server is halted and no error message is displayed, see Troubleshooting tables and Solving undetermined problems.
• For intermittent problems, check the error log; see Event logs and IBM Dynamic System Analysis Preboot diagnostic program.
• If no LEDs are lit on the blade server front panel, verify the blade server status and errors in the Advanced-Management-Module Web interface; also see Solving undetermined problems.
• If device errors occur, see Troubleshooting tables.