Plug the monitor into the graphics card plug at the back of your pc
There will be two sets of plugs for your monitor at the back of the PC. One set is higher up than the others. You want the set that are lower down at a 90 degree angle to your other ports
If your monitor is already plugged in there then you're already using your graphics card
hahahahaha really i just have some doubts about it because i don't want over heat it and sometimes i feel that this card should be more faster in dwg files