I recently decided to add another 8GB (2x 4GB) of RAM to my PC, so now it had a total of 16GB 2400MHz (16-16-16-36). When I did this, I got a black screen, so I reseated the RAM. This time I didn't get a black screen, but a blue error screen. I restarted once more and got a blue screen again. So then I took one of the RAM sticks out and it worked just fine. So I paid for 8GB of RAM but can only used 4GB. Nice.