• Yes: Shut down all failing servers that are related to the cluster. Go to step Step 2.
Step 2. Complete the following steps:
a. Check the power supply LEDs (see
“Power-supply LEDs” on page 391).
b. Turn off the server and all external devices.
c. Check all internal and external devices for compatibility at
http://www.ibm.com/systems/info/
x86servers/serverproven/compat/us/
.
d. Check all cables and power cords.
e. Set all display 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 360.
h. Check the system-error LED on the operator information panel. If it is lit or flashing, check the
light path diagnostics LEDs (see
“Light path diagnostics” on page 381).
Note: When you slide the light path diagnostics panel out of the server to check the LEDs or
checkpoint codes, do not run the server continuously with light path diagnostics panel outside
of the server. The panel should only be outside of the server a short time. The light path
diagnostics panel must remain in the server when the server is running to ensure proper
cooling.
i. Check for the following results:
• Successful completion of POST (see
“POST” on page 305 for more information)
• Successful completion of startup
Troubleshooting tables
Use the troubleshooting tables to find solutions to problems that have identifiable symptoms.
Use the troubleshooting tables to find solutions to problems that have identifiable symptoms.
If you cannot find a problem in these tables, see
“Diagnostic messages” on page 319 for information about
testing the server.
If you have just added new software or a new optional device and the server is not working, complete the
following steps before you use the troubleshooting tables:
Step 1. Check the system-error LED on the operator information panel; if it is lit, check the light path
diagnostics LEDs (see
“Light path diagnostics” on page 381).
Step 2. Remove the software or device that you just added.
Step 3. Run the diagnostic tests to determine whether the server is running correctly.
Step 4. Reinstall the new software or new device.
DVD drive problems
Use this information to solve DVD drive problems.
360
System x3550 M3Problem Determination and Service Guide
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