That's what happens when you use a iPhone for techspot and you are working on desktop mode (not mobile).His PS is the first thing on his list. Corsair CX 750. Start from the begaining. Check make sure the heat sink for the cpu is mounted correct, Then add back memory. Use the onboard graphics if you have such. To see if the computer will post. Then start adding back the rest,Such as hard drive and video card. This may help you narrow down the problem.