Does swithing from single to dual core mess with ram? I just installed an Opty165, replacing Opty144, and now i am getting errors with my memory. I can run orthos on just the cpu, but if i do the "blend test" it stops immediatly. I am also getting random BSOD's. I did install the Update from AMD for the Dual core's. I tried running stock speeds 200FSB & 200DRAM but the RAM was unstable. It is DDR500, so I set mem divider @250 with 200FSB I run 225DRAM. But I am still not avle to run orthos for more than 10 sec.