My new pc will only work without a Graphics Card?

[Civactive]

I just built a new pc and it will only run at 144hz without my graphics card? Here are the full specs: http://uk.pcpartpicker.com/list/KHGR4C


Does anyone know whats wrong?

 

[Isokolon]

you have to enable 144Hz somewhere in the NVIDIA settings

 

[Civactive]

you have to enable 144Hz somewhere in the NVIDIA settings

Where about is that? Also ive just found out that I can't play a few games with it plugged in also. Any idea why?