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v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, Type 7940 and 7941 servers," on page 19 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
The operating system cannot be
installed; the option is not
available.
Software 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 Chapter 3, "Parts listing, Type 7940 and 7941 servers," on page 19 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
You suspect a software
problem.
Universal Serial Bus (USB) device 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 Chapter 3, "Parts listing, Type 7940 and 7941 servers," on page 19 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
A USB device does not work.
Action
Make sure that the server supports the operating system. Run the ServerGuide
program and make sure that setup is complete.
Action
1. To determine whether the problem is caused by the software, make sure that:
v The server has the minimum memory that is needed to use the software. For
memory requirements, see the information that comes with the software. If
you have just installed an adapter or memory, the server might have a
memory-address conflict.
v The software is designed to operate on the server.
v Other software works on the server.
v The software works on another server.
2. If you receive any error messages while you use the software, see the
information that comes with the software for a description of the messages and
suggested solutions to the problem.
3. Contact your place of purchase of the software.
Action
1. Make sure that:
v The correct USB device driver is installed.
v The operating system supports USB devices.
2. Make sure that the USB configuration options are set correctly in the
Configuration/Setup Utility program (see the User's Guide on the IBM System x
Documentation CD for more information).
3. If you are using an external USB hub, disconnect the USB device from the hub
and connect it directly to the server.
97
Chapter 5. Diagnostics
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