Due to faulty parts in my previous build, I went ahead and purchased a new CX 750 Power supply along with a MSI 970A-G43 motherboard and a FX 4300 AMD Processor. My GPU is a AMD Radeon 380. As me and my cousin put it together, we ran into a problem. The PC boots up which is a good thing (before we bought the parts the pc wouldn't boot up at all). As we plug it into a monitor, no signal is being sent through. I'm using A monitor hdmi to a vgi pc cord. When I plugged in my keyboard or mouse to see if they would boot up but they failed to boot. Which leads me to believe that the back panel is getting no signal. I tried using one stick of RAM instead of two and still didn't POST. I also tried switching up the RAM sticks and still kaput. Is something plugged in wrong or is it a whole different problem?