Troubleshooting a USB deviceAbout this taskFollow steps 1 to 6 to troubleshoot a USB keyboard or mouse. For other USB devices, go to step 7.Steps1. Disconnect the keyboard and/or mouse cables from the system and reconnect them.2. If the problem persists, connect the keyboard and/or mouse to another USB port on the system.3. If the problem is resolved, restart the system, enter System Setup, and check if the non-functioningUSB ports are enabled.NOTE: Older operating systems may not support USB 3.0.4. Check if USB 3.0 is enabled in System Setup. If enabled, disable it and see if the issue is resolved.5. In iDRAC Settings Utility, ensure USB Management Port Mode is configured as Automatic orStandard OS Use.6. If the problem is not resolved, replace the keyboard and/or mouse with a working keyboard ormouse.If the problem is not resolved, proceed to the next step to troubleshoot other USB devices attachedto the system.7. Turn off all attached USB devices, and disconnect them from the system.8. Restart the system.9. If your keyboard is functioning, enter System Setup, verify that all USB ports are enabled on theIntegrated Devices screen.10. Check if USB 3.0 is enabled in System Setup. If it is enabled, disable it and restart your system.If your keyboard is not functioning, you can use remote access to enable or disable the USB options.11. If the system is not accessible, reset the NVRAM_CLR jumper inside your system and restore theBIOS to the default settings.12. In the IDRAC Settings Utility, ensure USB Management Port Mode is configured as Automatic orStandard OS Use.13. Reconnect and power on each USB device one at a time.14. If a USB device causes the same problem, turn off the device, replace the USB cable with a knowngood cable, and turn on the device.Next stepsIf all troubleshooting fails, see Getting Help.Troubleshooting a serial I/O deviceSteps1. Turn off the system and any peripheral devices connected to the serial port.2. Swap the serial interface cable with a working cable, and turn on the system and the serial device.If the problem is resolved, replace the interface cable with a known good cable.3. Turn off the system and the serial device, and swap the serial device with a comparable device.4. Turn on the system and the serial device.150
