Monitor has no input signal

Registration date
Sunday December 31, 2017
Last seen
December 31, 2017
So I was changing the nvidia control settings to activate multi gaming screen thingy. Any way the monitors went black after I enabled it and now they are stuck with no input coming through. I have tried to start up the pc in safe mode and also. To reset bios setting and nothing seems to work. I have also plugged the monitors into different inputs and have changed the leads but I am all out of ideas. The pc is showing the windows 10 loading screen and my motherboards start up settings but when it goes to the desktop I get nothing

Please help.