I'm in the same situation as Tomtom. Both of the above statements seem to be in contradiction... is it best to uninstall the integrated graphics drivers, or not?
I got the PNY and the instruction manual seems to tell me that all I have to do is change something in the UEFI (the "Primary Display Adapter" needs to be set to "PCI"). I've had bad luck since I've started building this computer, it's my first one and I really don't want to screw this up. Last time I tried to install a discrete GPU it was a Radeon HD 5450, and things didn't go well...