I just recently switched my 8 pin power cord from the power supply to the motherboard because all of the components in my tower would turn on but nothing else, (mouse, monitor,keyboard,etc.) but when i switched to the other 8 pin power cord that was just kinda dangling beside it, everything started to power up and work just fine. After i had rebooted my comp i put on my headset and was getting ready for some gaming, but i noticed this buzzing static like noise that is constantly there. When i try to listen to music or a video what little sound i can hear is extremely faint, the static buzzing also reacts to me moving my mouse and typing on the keyboard.