AlienAutopsy-System Information states that my M14xR1 has a 16 GB maximum memory capacity and I have 8 GB installed in 2x4GB.  Dell website for this laptop states a maximum capacity of 8 GB, which I have.  Which is correct, because I certainly would like to upgrade to 16 GB, but Dell only sells 4 GB units and there is only space for 2 pieces in the M14xR1?