EVGA GTX460 Graphics Card Help!?

Okay So I Brought A EVGA GTX460 Graphics Card to find out i only have 1 pci-e cable

i then brought a 6pin pci-e splitter

http://www.amazon.co.uk/Startech-com-Express-Power-Splitter-Cable/dp/B004NNTVT6/ref=sr_1_1?ie=UTF8&qid=1326003461&sr=8-1



so my question is will this run this ?

http://www.scan.co.uk/products/1gb-evga-gtx-460-superclocked-3800mhz-gddr5-gpu-763mhz-shader-clock-1526mhz-336-cores-2x-dl-dvi-i-mi



my power supply is a 750W

and my computer is a

Dell Precision 490



Any Help Would Be Amazing!|||yes should be fine don't for get the card footprint takes two slots just make sure you have enough room

HTH

David