Need graphics card help

few minutes ago i installed gf 5500 card in pc and run it for about half of hour then i check it and it gets very hot i can't touch its heatsink metal cuz its really hot now wanna know that is it okay or some thing wrong ?? i highlighted red circular on gf 5500 120mb which is i think for fan power connector but it doesn't come with fan what is this? plz help me on heating problem