I am going to get a q6600 to replace my e4500. When doing so will I need to reinstall windows or will it be like a new piece of hardware, put it in boot it up and its good to go. The place where I get my computer stuff does trade ins, so I will be getting $110 towards a q6600 upgrade. Also will the mother board bios need to be set back to default settings or does this get done automatically for a cpu replacement. I am asking this b/c my e4500 is currently OCD to 2.66