1) What is the difference between SD-RAM and DDR-RAM? 2) Is there any way for me to use my HDD and make a 1 GB partition or something and using it as RAM? What I'm trying to say is, is there any way of adding RAM without soldering or as much soldering because the guy that put my chip in my xbox is asking me 100$ (canadian) to give me an extra 64 MB Ram and to install it, I bassicaly want to pay around haft the price. Someone please help me!!!