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Universal Serial Bus (USB) port problems

Use this information to diagnose and resolve USB port problems in the blade server.

IBM updates the support website with the latest tips and techniques that you can use to resolve any problems. Go to the BladeCenter support search website at http://www.ibm.com/supportportal/ to see if any service bulletins have been generated. In the Search field, type 7875, retain tip, and chassis.

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.

Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

  • See Parts listing to determine which components are consumable, structural, or CRU parts.
  • If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained technician.
SymptomAction
A USB device does not work.
  1. Check the function of the shared BladeCenter unit resources. See Solving shared BladeCenter resource problems.
  2. Make sure that:
  3. (Trained technician only) Replace the system-board assembly. See Removing the system-board assembly and Installing the system-board assembly.