2 Nvidia cards for CROSSFIRE on a NVIDIA chipset Im guessing you knew what you meant and it came out wrong ?
Back to inetmg,
The card will run fine on that MoBo but as juvealert tried to say you would not then be able to add another card on your MoBo as its not compatable with Crossfire, which is the ATI dual card standard. If you did plan to run two cards in future you need to get an Nvidia card to be able to use SLI at a later date, SLI is Nvidia's dual card standard.
I would think your power supply may be a bit on the weak side for that card. Can you tell us teh make and model ? Or do you know how many Amps or Watts it has dedicated to the +12V rail ?