I am running a I7 5930k on a asus x99pro MB with 32gb DDR4 corsair Dominator memory and I am running 2 R9 295x2 video cards in crossfire the cards and my CPU are all water cooled with blocks from EK water cooling and my system temps are low so i know its not over heating cpu is running at 90 to 105 degrees and the video cards runn a little hotter I am running at corsair AX1200w . When im playing on BF4 or my son is on starwars bf the system will lock up and crash will have to reboot and will work for a while then some times it will work fine can it be i need a bigger PSU ? i have more case fans then the starship enterprise any ideas ? thanks for the help in advance not a real advanced computer guy