I Just got my first graphics card (Radeon HD 6570) And after installing to my computer it wont show up. I have a 240W PSU and originally i thought that was the problem, but upon plugging my monitor to the actual card i realized it wasnt. The fan on the card spins fine and im sure it is installed physically correct; but in my display adapters all it shows is the Standard Onboard VGA Graphics. Can someone please help me because im far from a computer expert and im in need of help.