Just doing a quick google search for that motherboard pops up lots of results for an ASUS computer, so I'm assuming you bought it pre-built? Either way, as many other have said you would likely see cables that match your picture coming from your power supply, but the ASUS computers I see have 300W power supplies and therefore you probably don't have a good enough power supply to run that card. Double check your power supply sticker if you want, but you probably need to buy yourself a new one, around 500W would be fine, from a good brand such as Seasonic, XFX, or EVGA.