My x99 system died the other day. I went to bed sunday night while it was crunching drug discovery, when I woke up in the morning the system was down. It won't power back up. It tries, the LED's light and the fans spin for a half second then it shuts off. It continues in a loop until I flip the switch on the back of the power supply. I tried another power supply and it still doesn't boot so I'm guessing its the motherboard. I thought about going to Microcenter and getting a new motherboard...but then I was thinking this gives me an excuse to build a Ryzen system.....all the cool kids are doing it.