PC randomly restarted

[Bob Bobb]

Hello so I was trying to add another fan to my pc case, The fan i was gonna add already had the wires to it cut, so i had to cut and twist the wires back together and wrap it with electral tape in order for it to work. As soon as i plugged in the cord for the fan i smelled electral fire. I unplugged it and saw that the electral tape was burnt, so i unraveled it and tried to twist the wires again , and retape it. As soon as i was done with that i pluged the fan corrd back in and boom, my pc restarted. Right when i pluged it in. Im not sure what happened , and this just happened 5 mins ago and everything seems to be fine , windows just said " pc didnt shut down correctly, start normally or go into safe mode," so i went normal mode. Should i be worried or anything? and what happened?

 

[C12Friedman]

It sounds to me as though there was loose connection in one of the fan wires which presented itself (in the form of heat) when you started it up after "fixing" the fan initially which apparently is better since the second "fix". As far as it starting by only plugging in the fan, that is strange but if all seems to be working properly now, I don't really know what to make of it.