Hi, I have a Dell XPS 410 and I am looking to upgrade my processor. I have invested a lot of time looking on the internet about which processor I can buy that will be compatible with my current motherboard, which is the motherboard that came with the system when i bought it a few years ago. But most of the info on the internet is like 2 yrs old, so I am wondering if there is a list out their that shows the processors I can use to upgrade. I currently have a Intel core duo 1.86 GHz and want to go to a hight duo or a higher quad. Please help me find concrete information on which processors I can upgrade too, because I dont want to buy a processor and have it not work and I can't sent it back.