IBM 1911, Руководство по обслуживанию

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Universal Serial Bus (USB) port problems
Use this information to diagnose and resolve USB port problems in the blade
server.
The USB ports are shared BladeCenter unit resources. First, make sure that the USB
ports are assigned to the blade server; then, see the following table and “Solving
shared BladeCenter resource problems” on page 227.
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 41 to determine which components are CRUs and which components
are FRUs.
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
A USB device does not work.
1.
Make sure that the media-tray select button LED on the front of the blade
server is lit, indicating that the blade server is connected to the shared media
tray.
2.
Check the function of the shared BladeCenter unit resources. See “Solving
shared BladeCenter resource problems” on page 227.
3. Make sure that:
v
The operating system supports USB devices.
v The correct USB device driver is installed. For the latest device drivers, go to
http://www.ibm.com/support/.
4. (Trained service technician only) Replace the system-board assembly. See
“Removing the system-board assembly” on page 97 and “Installing the
system-board assembly” on page 98.
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BladeCenter HS22 Type 7870, 1936, and 1911: Problem Determination and Service Guide