I have ordered the Lenovo ThinkPad X120e with the AMD E-350. I have also gone through the extension of the memory of the ThinkPad, I found that it can be extended up to 4 GB, but I have also found that many people or the users have posted that they have extended it to 8 GB. As I read for the 4 GB it says I have to insert the 2 GB two different in the two different slots of the RAM. So I want you people to give me some advice and suggestion whether I can do the upgrade to 8 GB. I am running the current computer on the windows XP operating system, is the 8 GB will be supportive for windows 7 or not. And also DDR3 – 1066 4 GB stick will work or not, if yes then recommend some 4 GB stick. Thank you.