As a Gamer running an Athlon 2100 and DDR Ram I don't think you will notice much of a difference for a long time I highly doubt that the reboot damaged your RAM, and other than www.buyaib.com I don't know of anyplace that sells Cas2 DDR... and I'm still not sure if buyaib even sells Cas2 or if they just overclock 2.5... but I think you'll be fine for a while... atleast until the game recommended reqs hit close to your max specs.