How to Check the I/O Port Conflict


Serial, parallel and similar I/O ports provide users with the ability to connect external devices such as printers, modems, terminal and other devices that require relatively low speed data connections. I/O ports are also commonly used for connecting Bluetooth wireless devices. Device resource conflicts can occur when new hard or drivers are installed on the computer. Use Device Manager in Windows to quickly find the conflicting resource and resolve the issue.

  • Click the "Globe" or "Start" button on the computer desktop, then right-click "Computer" or "My Computer" and select "Manage." Select "Device Manager" from the "Computer Management" window that appears.

  • Scroll through the list of devices and then click on the "Ports" header to expand it.

  • Double-click on the port in which a conflict is suspected or reported. Select the "Resources" tab.

  • View the "Conflicting device list" and if the port conflicts with another device for resources, clear the "Use automatic settings" check box and then click the "Setting based on" drop-down box.

  • Select the next setting in the list and then view the "Conflicting device list" box. If the setting does not conflict with other devices, click the "OK" button. If the setting conflicts with other devices, select the next setting in the drop-down box and view the "Conflicting device list" box to determine whether or not the settings conflict with another device. Repeat the procedure until a setting is selected that does not conflict with other devices and then click the "OK" button.

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