I am in Europe. There was a switch on my PSU that could switch the voltage between 230v and 130v (not 100% sure). In Europe we use 230. I switched the PSU to 110 and turned it on. Several sparks and a power failure resulted, the PSU was fried.
Can someone explain why this happened. I was assuming that because the system was using 230 and the PSU only draws 130 it would be safe cause it's less. I guess I was wrong.
Can someone explain me the physics behind this.