Disabling APU onboard graphics



Not that simple It dosn't work like that. Nothing happened It dosn't boost my performance at all.
 

It is that simple. Do you have the NVIDIA driver installed for the 970?
 
Generally there is no need need to disable any Integrated Graphics Chipset when using a discrete Graphics Card.

The Graphics Card's drivers will differentiate between the Chipset and the Graphics Card and will always prioritise the Graphics Card if one is one detected on system boot.

Furthermore it can be risky to disable Integrated Graphics as, in the event of a GPU failure, your fall-back graphics option is not immediately available, which can cause all kinds of complications.

There shouldn't be any reason to disable a correctly functioning Integrated Graphics Chipset.
 
There should be details about which gpu you're using in the catalyst control center. Otherwise look at the northbridge settings in your bios. Lastly, check if windows detects your graphics card in device manager (right click on start and select device manager ---> Display Adapters). You should see HD XXXXD and the dedicated graphics card