To change the timing signal frequency generated by the server
Follow these instructions if you are using the server to generate the timing signals and you want to change the timing signal frequency.
From the NVIDIA Control Panel Select a Task pane, under Workstation, click Synchronise Displays.
Make sure that the On this system radio button under The timing server is selected.
Click Edit Settings to open the Server Settings dialogue box.
Under The synchronisation pulses are based on, click the Internal timing signal with a refresh rate of radio button.
Click the list arrow and select a refresh rate, then click OK.
The refresh rate of the server display as well as the frequency of the timing signal will change based on your selection.