Thanks. Do you have a suggestion if I just want to upgrade processor but use same ram I just purchased which is DDR 2700 (two 1 gig sticks) or should I just try to send that back and get new ram. Point here is, this is a low grade, low use machine for tax program, office files, holding pictures, emailing, internet searches and low resource on line games such as yahoo wordracer or texas hold em. We don't do much just want it to run faster and don't want to cost a ton. I thought of just buying a new machine but have hard drive, monitor etc.