there is only one which is only a 4 pin plug. But that one is occupied by the PC one. Should I unplug it and plugh the CP one?
What's a PC plug? How many pins? What colour are the wires on it?
Okay, I'm starting to get confused. Let's list all the important plugs:
1) ATX power - the wide 20-pin plug with an additional 4-pin next to it, must go in the same slot if there're 24 pins, if there're 20, leave the extra 4-pin hanging
2) Graphics card power - 2 6-pins that I linked earlier, you said you connected them
3) CPU power - must get one of the blue 4-pin ones in there, only one of them will fit due to the geometry of the plug.