Hello. I just recently built a PC. I can turn on the PC, but a few things are off. The motherboard shows a white light, and I can see all the fans are on. However, there is no power switch LED, there is no signal to the monitor, the keyboard and mouse aren't lighting up, and you are unable to turn off the computer through the power button. I think that the problem is the arrangement of system cables, like power switch +/-, but since the keyboard and mouse aren't turning off I'm having second thoughts. Please help.