Hello I have a Laptop that has 2 memory slots.. one slot has a 4GB installed which is the one that It came with.. the other one is empty.. I think the laptop is upgradable up to 16GB.. I was wondering can I install a 8GB memory on the empty slot? they're both DDR3L 1600 (PC3L 12800) the only difference between them is the size.. so can I install the 8GB without any problem?