Skip to main content

Universal Serial Bus (USB) port problems

Use this information to USB port 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, Lenovo System x3550 M3 Type 4254 and 7944 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
  • If an action step is preceded by (Trained service technician only), that step must be performed only by a Trained service technician.
  • Go to the IBM support website at Lenovo Data Center Support to check for technical information, hints, tips, and new device drivers or to submit a request for information.
A USB device does not work.
  1. Make sure that:
    • The correct USB device driver is installed.
    • 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 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.