Undocumented problemsIf you have completed the diagnostic procedure and the problem remains, theproblem might not have been previously identified by IBM. After you haveverified that all code is at the latest level, all hardware and software configurationsare valid, and no light path diagnostics LEDs or log entries indicate a hardwarecomponent failure, contact IBM or an approved warranty service provider forassistance.To open an online service request, go to http://www.ibm.com/support/entry/portal/Open_service_request. Be prepared to provide information about any errorcodes and collected data and the problem determination procedures that you haveused.Service bulletinsThis information provides the location where can find Service bulletins to help yousolve problems.IBM continually updates the support website with the latest tips and techniquesthat you can use to solve problems that you might have with the IBM Systemx3750 M4 server.To find service bulletins that are available for the IBM System x3750 M4 server, goto http://www.ibm.com/supportportal/ and search for 8722 or 8733, and retain.Checkout procedureThis information provides tasks that you should follow to diagnose problems.The checkout procedure is the sequence of tasks that you should follow todiagnose a problem in the server.About the checkout procedureThis information covers what you need to know before you use the checkoutprocedure to determine server hardware problems.Before you perform the checkout procedure for diagnosing hardware problems,review the following information:v Read the safety information that begins on page “Safety” on page vii.v IBM Dynamic System Analysis (DSA) provides the primary methods of testingthe major components of the server, such as the system board, Ethernetcontroller, 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 whethera problem is caused by the hardware or by the software, you can use thediagnostic programs to confirm that the hardware is working correctly.v When you run DSA, a single problem might cause more than one error message.When this happens, correct the cause of the first error message. The other errormessages usually will not occur the next time you run DSA.Exception: If multiple error codes or light path diagnostics LEDs indicate amicroprocessor error, the error might be in the microprocessor or in themicroprocessor socket. See “Microprocessor problems” on page 199 forinformation about diagnosing microprocessor problems.166 System x3750 M4 Types 8722 and 8733: Installation and Service Guide
