I have no idea if this is going to work but this netbook is rated for a pc2-6400 stick. While its undocumented as to if a 4gb stick will even work in this unit, I saw one on ebay for less than 30$ and bit the bullet on it. As of now its running off an ssd and 2gb of ram. Its sufficient for a lot of tasks but if theres a limit I wanna touch it.