SkyNetRising :
Rogue Leader :
problem is you have a 144hz monitor with a GPU that doesn't have a port that would support it. You need a GPU with displayport
DVI dual link supports 144Mhz operation with no problems.
That monitor doesn't have Display Port connection BTW.
I stand corrected.
That said, sounds like 144hz isn't the problem here.
As Skynet asked, what is your resolution?