on a Whim I put all four 1 gig sticks of Lanfest ram in my system. I knew ahead of time, or atleast thought windows xps is limited to 3.50gbs of ram is this correct and is there any bennifit to having all 4 GB in a windows xp system. Will it negativly effect my system at all? and will it use atleast 3.50gb of the 4 gb of ram. I figure I would buy the Lanfest ahead of time for the future because it is a limited edition and when vistas gets the bugs out I might move in that direction.