Problems and Solutions USB Problems USB device does not work ■ If the device requires external power, be sure that it is plugged securely into an electrical outlet as well as into a USB connector on the notebook. ■ Verify that the device is functioning properly by connecting it to a USB connector on another system. ■ Verify with the device manufacturer that you are using the correct driver(s). ■ Use the Device Manager utility in your operating system to check for and resolve any resource conflicts. USB device does not work during startup Refer to your model-specific documentation for information about USB legacy support.
(USB legacy support enables a USB device, such as an optional external keyboard or mouse, to function during startup, before Windows loads.) Troubleshooting 2–39