HDD Light

Title says it all, HDD light stopped working suddenly after school. I have also noticed that the USB ports are not working (keyboard and mouse not lighting). The monitor does not react at all whenever I turn my PC on and off but the fans are still spinning, I am certain that this is not a...

here, i know this have been answered a good amount of times but one is saying no the other one is saying yes etc there's never any clear answer so here, my graphic card and cpu etc used to benchmark like 45.6% something like that than a few weeks ago i started having some power supply issues...