I have a dfi sli-d motherboard and just replaced my 3700+ with a opteron 170 and it seems like it's only reading one core. I did a fresh install of windows xp pro and it doesn't recognize the processor. It just says amd hammer family processor. I should have the latest bios update for this motherboard or do you think I should try and update the bios again. Considering going a couple steps up in motherboard model as I'm probably going to throw another system together with the 3700 in it. I think originally this board only handled single cores when it first came out. I already know my stepping isn't the greatest, but it's at 2.64ghz right now. Temps aren't bad either, idles at 33'C for the time being. Any help would be much appreciated. Has anyone else had this problem?