I upgraded from an old AMD Athlon 3800+ to a X2 5000+ and now the computer just repeats one long beep. There is no video display. Yes, there is sufficient power. Asus MB, 3 GB ram, GeForce 7600GT -- although it has onboard video too. i've pulled the GeForce out along with other non-essential items. I'm running a bare bones P.C. right now. Working with proper tools, and grounded wrist band. No video from onboard OR the card. No video with either disabled. As soon as I throw the old processor back in, it works fine (typing on it now). Nothing is changed except for the processor. Any ideas?