Hi guys, as the title states, I saw a spark out of the blue while casually gaming on my PC which I own for the past 1,5 years. The spark kinda appeared from the front panel of the PC where the radiator and fans are located. Nothing stopped responding, everything was fine after some restarts and seperately checking the hardware with another psu, no smell of burned plastic or anything. The radiator has some dust between the fins but not so much in case that could be the reason. Anyway I am kinda worried cause I am not sure about where it actually came from. Any ideas?