IBM 7985 Problem Determination And Service Manual

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. Check the power supply LEDs, see “Power-supply LEDs” on page 53b. Turn off the server and all external devices.c. Check all internal and external devices for compatibility athttp://www.ibm.com/servers/eserver/serverproven/compat/us/.d. Check all cables and power cords.e. Set all monitor controls to the middle positions.f. Turn on all external devices.g. Turn on the server. If the server does not start, see “Troubleshooting tables”on page 37.h. Check the system-error LED on the operator information panel. If it isflashing, check the light path diagnostic LEDs on the system board (see“System-board LEDs” on page 17).i. Check for the following results:v Successful completion of POST, which is indicated by a single beep (see“POST” on page 19 for more information)v Successful completion of startup, which is indicated by a readable displayof the operating-system desktop3. Did a single beep sound and are there readable instructions on the main menu?Note: A single beep indicates successful completion of POST and is not anerror.v No: Find the failure symptom in “Troubleshooting tables”, if necessary, see“Solving undetermined problems” on page 89.v Yes: Run the diagnostic programs (see “Running the diagnostic programs” onpage 55).– If you receive an error, see “Diagnostic error codes” on page 56).– If the diagnostic programs were completed successfully and you stillsuspect a problem, see “Solving undetermined problems” on page 89.Important: Clear the BMC system event log and system event/error log afteryou correct all conditions. This will turn off the system event/error LED if allconditions are corrected.2 IBM System x3655 Type 7985 and 7943: Problem Determination and Service Guide