I have a dell XPS 410 desktop with an Intel E6300 1.86 GHZ core 2 duo, and I want to upgrade to a fast CPU. I talked to dell on the phone and the told me I could go up to a Q6600 or E6700. Not sure if that true or not. Maybe that is just want they recommend. I was looking at buy an E7300 but they didnt say that was one of the compatable processors. Let me know if anyone has some input on this. Thanks