I posted this to the CPU board, but maybe I should have posted here. I checked my computer against the minimum specifications to play Fallout 3 and the one thing that falls short is my processor speed. My AMD Athlon 64 is 2.01 GHz, where 2.4 is minimum. Newegg has one that may fit my needs: Athlon 64 LE-1640 Orleans 2.6GHz 1MB L2 Cache Socket AM2 45W Single-Core Processor, for $39.99. Would that be compatible with my NVIDIA nForce4 (rev 3) mobo and is it easy to upgrade? I've done a lot of basic upgrading things, like last week I replaced the LED screen on my Toshiba laptop, but I've never replaced a processor. I see Bethesda recommends a dual core processor over the minimum 2.4GHz Pentium 4 or equivalent processor, but that would mean upgrading the mobo too, since I don't think my mobo supports dual core. Also, they recommend 2GB of RAM, so I should probably add another 1GB. My 2 Nvidia GeForce 6800 GS cards look to be supported for the game. I had been thinking about starting from scratch and building a gaming computer, but I am considering just upgrading this one. Has anyone had a good experience playing FO3 using a single-core processor? Any suggestions? Thanks.