So I have a HP Pavilion that had a hard drive go out and I finally got a replacement HHD but now that I put it in the laptop I try to start it up and it doesn't boot. I don't have an OS on the drive get but I figured I would try to boot the laptop to make sure the HDD works. But the screen doesn't even turn on and it just beeps 3 times. Beeeep, Beeeep, Beeeep. Any help please?