When it comes to resolving conflicts, the Device Manager is the best place to start. Problems often occur when hardware devices try to grab the same system resource; however, incompatible hardware may also be the culprit.
Using the Device Manager for Conflicts
If a device is conflicting, you will see an indication on the Device Manager page of the System Properties dialog box. An exclamation point next to a device means that a conflict has been detected.
You can alter the settings for the offending device by double-clicking the highlighted item and clicking the Resource tab of the device's properties dialog box.
When a conflict exists, it is described in the Conflicting Device list box at the bottom of the sheet. To resolve the conflict, do the following: