I have a titan x (Pascal) running off of a corsair sf600 and noticed that in two separate circuits that the lights were flickering when under load. My other desktop is on a 1500W PSU with 2 titan x's and never had this problem. I swapped the 1500W PSU to the other box and had no flickering. Then I borrowed two more titan's from work, put 4 on my 1500W box under load and lights started flickering again. I've heard that lights flickering in a house is a sign of bad wiring and could be a fire hazard, is this concerning? It's surprising to me that this seems to be affected by how close the power draw is to the PSU limit and not just total power draw. Would greatly appreciate any feedback, thanks!