RadicalRadnor

Hey all, I'm hoping to get some help. I bought a used Alienware laptop and after a bit of research I determined that I should be able to buy an Nvidia Geforce 470 and upgrade the existing graphics card. When booting up with the new card it does not load the BIOS and gives three sharp beeps and the scroll and caps lock buttons blink. Anyone know of a way I can get this card to work with my Alienware or have I wasted my money? Thanks