To remove a forced EDID from a display connection
From the NVIDIA Control Panel Select a Task pane, under Workstation, click View system topology.
Locate the display with the forced EDID, then click the corresponding Display [+] icon to expand the branch.
At the EDID Status property, click File.
The Manage EDID dialog page opens.
Click the Unload tab.
Select the connectors for which you want to remove the EDID.
Click Unload EDID.
The EDID unloads and a confirmation dialog appears when the EDID is finished unloading.
Click OK at the Unload EDID confirmation dialog.