Sorry Party cloudy,
We thought you were referring to the power connection on your graphics card.
Stormy (Richard) is correct that you could use either a 4-pin or 8-pin ATX +12V power plug. This is to power your CPU. Just be sure to plug it in on the side (right side on diagram above & below) closet to pin 1
on the motherboard's 8-pin (EATX12V) power connecter.