So basically, I was guessing the motherboard was faulty, since the CPU fans didn't spin, the lights didn't turn on, and the GPU did the same thing. A classic completely broken computer. Then I pressed buttons on my keyboard... It still lights up. It's only connected to the mobo USB port, and stops lighting up when I unplug it. Now it IS a wireless keyboard that DOES have a battery, but then what's with the keyboard not lighting up after unplugging it? Can someone please help me?