I built a new pc and after finishing building it I turned it on for the first time and it was working. I installed Windows and then checked the system on control panel. It only detected 8GB or ram rather than 16 so I turned off the computer and removed the RAM and then put it back in. When trying to turn it on it will restart after about 5 second after pressing the power button. I have tried putting the RAM in different slots but it still keeps restarting.