I am told by a friend of tech, to improve my memory, because the side of the memory should be higher than the processor for optimum performance. At the present time, I have 6 GB of 1333 MHz (3x2Go) modules, and is my performance rating: 7.0 - CPU and memory to 5.9. Now, every time I check with one of the manufacturers of memory, on the compatibility updates, they list, (or if I use their scan) I can go to modules 12800 - 1600 MHz. now, according to the maintenance manual, the ram for this unit should be a maximum of 16 GB, (I know) and uses 10600 or 1333 MHz modules. I have an Elitebook 8540, w / 720qm CPU Intel. I am in a quandry that needs expert advice: