So, I bought a NZXT 820 Phantom case, and in almost every video, the people reviewing it, just plug in the molex connector and the SATA connector to their PSUs and it works. The case should open when you press the power button and the fans should start spinning. Also, the LEDs should light up. But when I connect these cables, they don't make the LEDs light or the case fans spin. I checked many videos and one even said "All you have to do is plug the molex and SATA cables". You don't even need a motherboard installed for this! Why doesn't mine work? Any solutions?