Hey I was wondering since my computer can only have 2GB at the max and I have 2 slots for RAM. Would I be able to have 1GB in slot and 512MB in the other slot? Or would I have to have 1GB in each slot for my computer to be able to use it? Also I am using a Dell Laptop and this site here http://www.crucial.com/systemscanner/viewscanbyid.aspx?id=4E0F8DA231D926C3 says that is the RAM I need for my laptop. Has anyone used this site to buy RAM from before? And if you have used the site, was it a good site? Because I don't want a website that will rip me off and not give me what I bought.