So I was building my pc for the first time and I plugged in a wire into the PSU then into the nzxt fan controller. I then plugged in the fan controller into the motherboard and turned it on. The system fan 2 was the most reachable one so I plugged it into that and the cylinder thing next to it caught fire. I quickly turned it off and did some research and found you're not supposed to plug it into the motherboard. I turned it on again and it seems to work fine now.
Wow that was fast! Ya I plugged it into the molex connector and it seems to be working fine now but I guess I just overloaded it with power from plugging the end into the motherboard.