Software Problems; Universal Serial Bus (Usb) Port Problems; Video Problems; Solving Power Problems - Lenovo x3550 M4 Installation And Service Manual

Software problems

Use this information to solve 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 If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
v Go to the support website at http://www.ibm.com/supportportal/ to check for technical information, hints, tips,
and new device drivers or to submit a request for information.
Symptom
You suspect a software
problem.

Universal Serial Bus (USB) port problems

Use this information to USB port problems.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
v Go to the support website at http://www.ibm.com/supportportal/ to check for technical information, hints, tips,
and new device drivers or to submit a request for information.
Symptom
A USB device does not work.

Video problems

Use this information to solve video problems.
See "Monitor and video problems" on page 157.

Solving power problems

Use this information to solve power problems.
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 received any error messages when using the software, see the
information that comes with the software for a description of the messages and
suggested solutions to the problem.
3. Contact the software vendor.
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 Setup
utility (see "Using the Setup utility" on page 102 for more information).
3. If you are using a USB hub, disconnect the USB device from the hub and
connect it directly to the server.
Chapter 4. Troubleshooting
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