I just upgraded my Motherboard and Ram. When I attempted to boot the computer I got no display, yet everything appeared to be on. I reseated everything, as well as swapped out the new ram for the old. I’ve checked all of the connections and re did them. At one point I turned it on and my Case fan/led connector started smoking. I don’t know what else to do, I’ve been told that my specific power supply has had problems, rm 750x.