...Or at least, it starts for a split second before turning back off. I checked the interior power supply and everything was connected snug and tightly. What's strange is that the first time I booted it up, it turned on, but my monitor received no signal from the system. I went to unplug my monitor, heard a low "powering down" type of grumble from my PC, and it shut off. Now I'm left with this current issue. I tried to do the "paper clip" test as suggested by their website, but as I said the interior is snug and tight. I couldn't get the 20/24 connector undone at all. Any advice, comrades?