My Psu Is Coolermaster 750w And Os is Windows 10 1903 Build I had Ancient Gpu Geforce 210 PreviouslyThat's a pretty old system, what's your power supply? Perhaps it's not getting enough power to run fully.
Also what OS version? Did you have a graphics card in it before?
Honestly though, that's a lot of GPU for such an old CPU, you're going to be bottlenecked pretty severly.