IBM DR550, Problem Determination And Service Manual

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Microprocessor problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v
See the parts listing in the x3650 Problem Determination and Service Guide to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v
If an action step is preceded by (Trained service technician only) , that step must be performed only by a trained
service technician.
Symptom Action
The server emits a continuous
beep during POST, indicating
that the microprocessor is not
working correctly.
1. Correct any errors that are indicated by the light path diagnostics LEDs (see
“Light path diagnostics” on page 39).
2. Make sure that the server supports all the microprocessors and that the
microprocessors match in speed and cache size.
3. (Trained service technician only) Make sure that microprocessor 1 is seated
correctly.
4.
Reseat the following components:
a.
(Trained service technician only) Microprocessors
b.
VRM, if microprocessor 2 is installed
5.
(Trained service technician only) Replace the microprocessors.
Monitor problems
Some IBM monitors have their own self-tests. If you suspect a problem with your
monitor, see the documentation that comes with the monitor for instructions for
testing and adjusting the monitor.
v
Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See the parts listing in the
x3650 Problem Determination and Service Guide
to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v
If an action step is preceded by (Trained service technician only) , that step must be performed only by a trained
service technician.
Symptom Action
Testing the monitor.
1. Make sure that the monitor cables are firmly connected.
2. Try using the other video port.
3. Try using a different monitor on the server, or try testing the monitor on a
different server.
4. Run the diagnostic programs. If the monitor passes the diagnostic programs,
the problem might be a video device driver. See the x3650 Problem
Determination and Service Guide for more information.
5. Reseat the Remote Supervisor Adapter II SlimLine (if one is present).
6. Replace the following components one at a time, in the order shown, restarting
the server each time:
a.
Remote Supervisor Adapter II Slimline (if one is present)
b. (Trained service technician only) System board
Chapter 5. DR550 File System Gateway (FSG)
33