I have a Lenovo Bantry CRB motherboard currently using 2 of 4 available DIMM slots for 8GB of memory. The MB is capable of running 16GB of RAM. I have two sitcks from an old machine that can add 4GB of RAM two my machine. All of the specs match my existing RAM (speed, pins, etc.). Can someone to tell me if installing these two sticks will hurt my machine?