IBM BladeCenter HS20 Type 8832 Maintenance And Troubleshooting Manual

Also see for eServer BladeCenter HS20 Type 8832: Setup guide Installation and user guide Problem determination and service guide

Contents

POSTWhen you turn on the server, it performs a series of tests to check the operation ofserver components and some of the options that are installed in the blade server.This series of tests is called the power-on self-test, or POST.If POST finishes without detecting any problems, a single beep sounds, and the firstscreen of the operating system or application program appears.POST error logsIf POST detects a problem, more than one beep sounds, and an error messageappears on the screen. See “Beep symptoms” on page 65 and “POST error codes”on page 71 for more information.Notes:1. If you have a power-on password set, you must type the password and pressEnter, when prompted, before POST will continue.2. A single problem might cause several error messages. When this occurs, workto correct the cause of the first error message. After you correct the cause ofthe first error message, the other error messages usually will not occur the nexttime you run the test.The POST error log contains the three most recent error codes and messages thatthe system generated during POST. The system-error log refers you to themanagement module log, which can be accessed through the BladeCenter unit.Viewing error logs from the Configuration/Setup Utility programStart the Configuration/Setup Utility program; then, select Error Logs from the mainmenu. See “Using the Configuration/Setup Utility program” on page 14 for moreinformation.Diagnostic programs and error messagesThe server diagnostic programs are stored in ROM on the system board. Theseprograms are the primary method of testing the major components of the server.Diagnostic error messages indicate that a problem exists; they are not intended tobe used to identify a failing part. Troubleshooting and servicing of complexproblems that are indicated by error messages should be performed by trainedservice personnel.Sometimes the first error to occur causes additional errors. In this case, the bladeserver displays more than one error message. Always follow the suggested actioninstructions for the first error message that appears.Error codes that might be displayed are listed at “Diagnostic error codes” on page68.The diagnostic text message format is as follows:Chapter 4. Diagnostics 21