I am currently upgrading my Alienware system to increase my speed. I bought another Gig of RAM to bring it up to a total of 2 Gig (4 sticks of 512) and a new ATI AGP 8x video card. I installed them and my system will not reboot. I'm thinking I need to upgrade my motherboard and processor to AMDx2 but I want to use my old RAM (DDR 184 pin) and video card. What motherboard and processor is compatible with this? I have an ASUS SKV8 now.