Can I mix my 4GB DDR3 RAM PC312800 1600MHz 1.5v (Adata brand) with crucial 4GB 1600MHz PC3 12800 1. 5v to give me a total of 8GB? Will it improve the performance? - Quora
One of the channels for dual channel mode is disabled - Super User
RAM Slot Order: Make sure you know the difference for PC, Mac, and Laptop slots - One Computer Guy