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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 See Chapter 4, "Parts listing," on page 109 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.
Diagnostic programs, messages, and error codes
The IBM Dynamic System Analysis (DSA) Preboot diagnostic programs are the
primary method of testing the major components of the system-board tray. DSA is a
system information collection and analysis tool that you can use to provide
information to IBM service and support to aid in the diagnosis of the system
problems.
To download the latest version of DSA, go to http://www.ibm.com/support/
docview.wss?uid=psg1SERV-DSA or complete the following steps.
Note: Changes are made periodically to the IBM Web site. The actual procedure
1. Go to http://www.ibm.com/systems/support/.
2. Under Product support, click System x.
3. Under Popular links, click Software and device drivers.
4. Click Dynamic System Analysis (DSA).
As you run the diagnostic programs, text messages are displayed on the screen
and are saved in the test log. A diagnostic text message indicates that a problem
has been detected and indicates what action you should take as a result of the text
message.
The DSA diagnostic programs collect information about the following aspects of the
system:
v System configuration
v Network interfaces and settings
v Hardware inventory, including PCIe and USB information
v Service processor status and configuration
v Vital product data, firmware, and server firmware
Action
Important: To avoid potential problems during startup, disconnect any USB flash
drives from the system that contain the Smart Launch Utility before you turn on the
system-board tray.
1. Make sure that:
v The operating system supports USB devices.
v The correct USB device driver is installed.
2. Make sure that the USB configuration options are set correctly in the Setup
utility.
3. If you are using a USB hub, disconnect the USB device from the hub and
connect it directly to the system-board tray.
4. (Trained service technician only) Replace the system-board tray.
might vary slightly from what is described in this document.
39
Chapter 3. Diagnostics
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