Finished installing my new setup into my Half X Case, after 3 or 4 restarts I noticed that the LED fan was on when the computer was shut down, I have USB power to the front when the computer is stitched off. On investigation I noticed that the sharp soldered connection leading off the PSB around the USB headers has stabbed through the Insulation in the LED light red wire that comes from the switch, this caused the short that enabled the LED to light up. I have since bent the connections from the switch and further insulated the PSB with foam. I so far have not experienced any problems with my system and I feel that I may have been luckily to avoid any damage to the motherboard. I feel that this is a definite design flaw and would like to think that cooler master will make good the situation with people that have had similar problems that have not been so lucky.