Software Problems; Universal Serial Bus (Usb) Port Problems; Video Problems; Light Path Diagnostics - IBM System x iDataPlex dx360 M4 7912 Service Manual

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
service technician.
v Go to the IBM 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

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
service technician.
v Go to the IBM 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

See "Monitor and video problems" on page 176.

Light path diagnostics

Light path diagnostics is a system of LEDs on various external and internal
components of the server. When an error occurs, LEDs are lit throughout the
server. By viewing the LEDs in a particular order, you can often identify the source
of the error.
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 345 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.
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Chapter 3. Diagnostics