Only just noticed my xps m1730 laptop says it's only rocking 3gb ram, tho actually has 4gb. I am aware of win xp 32 bit limitation to 3.5gb, this is not the case i'm running vista and its 3.0gb so less then the 3.5gb limitation anyways. I'm fairly confident that it used to use all the ram, not a total fool and i probably would've have noticed this before. I read somewhere that if your using onboard graphics that can eat into ram, my xps has sli graphics cards but the drivers often crash and they have issues, not sure if the mobo has another onboard output that could be stealing ram when this happens.
So the question is, what (besides OS limitations) causes RAM to show up less then is installed?
So the question is, what (besides OS limitations) causes RAM to show up less then is installed?