So I woke up this morning and wanted to play some games on my pc that I built a few years ago. But, when I hit the power button nothing happens. No motherboard lights, no fans spinning up, nothing but my keyboard lights up. As I sit there and mash the power button I heard a faint click. If I hold the power button, my PSU clicks, and with every click my keyboard lights pulsate like it’s just in a loop. I have no idea what’s going on, probably a shot motherboard or something. Need some help!!