v If the server is halted and a POST error code is displayed, see “Error logs” onpage 14. If the server is halted and no error message is displayed, see“Troubleshooting tables” on page 24 and “Solving undetermined problems” onpage 57.v For information about power-supply problems, see “Solving power problems” onpage 55.v For intermittent problems, check the error log; see “Error logs” on page 14 and“Diagnostic programs, messages, and error codes” on page 37.Performing the checkout procedureTo perform the checkout procedure, complete the following steps:1. Is the server part of a cluster?v No: Go to step 2.v Yes: Shut down all failing servers that are related to the cluster. Go to step 2.2. Complete the following steps:a. Turn off the server and all external devices.b. Check all cables and power cords.c. Set all display controls to the middle positions.d. Turn on all external devices.e. Turn on the server. If the server does not start, see “Troubleshooting tables”on page 24.f. Check the system-error LED on the operator information panel. If it isflashing, check the LEDs on the system board (see “System-board LEDs” onpage 35).g. Check for the following results:v Successful completion of POST (see “POST” on page 11 for moreinformation)v Successful completion of startup3. Did one or more beeps sound?v No: Find the failure symptom in “Troubleshooting tables” on page 24; ifnecessary, run the diagnostic programs (see “Running the diagnosticprograms” on page 37).– If you receive an error, see “Diagnostic error codes” on page 39.– If the diagnostic programs were completed successfully and you stillsuspect a problem, see “Solving undetermined problems” on page 57.v Yes: Find the beep code in “POST beep codes” on page 11; if necessary,see “Solving undetermined problems” on page 57.Chapter 2. Diagnostics 23
