New
#11
Your motherboard: GIGABYTE - Motherboard - Socket 1155 - GA-B75M-D3H (rev. 1.0) it has the onboard graphics.
Accessible via these ports on the back panel:
Any other card means .... another one like your NVIDIA GeForce GTX 560. Accessible via either of these two ports ....
Remove the current one and apply here ....
Now you know.