Memory is on boot so it should not need a driver. Ill look at my memory card to see if its a psi. I know there are no drivers in my portable and all have different ram cards and one has a pds 1 meg card and a 1 meg in the memory slot. Just be careful as the ram modules from the non backlit do not work in the backlit even tho the connections are the same. Reason number two battery life in the backlit is gone so quick.