Is the ram upgraded to the maximum? Usually there is a compartment in the bottom of the notebook easily accessible which houses a secondary compartment for the ram. There is a certain maximum memory that is understood by the laptop, so you may have reached that number already. e.g My 3 year old laptop has maximum 192mb ram. Even if I put a 512mb chip into the extra compartment, it would still only recognize a total 192mb. Usually the amount of memory is the only thing that you can actually upgrade on a laptop.