PC won’t stay or turn on after motherboard spark

[nicholas.m201799]

I am upgrading a pc to a Ryzen 7 1700 with an Asrock b350 Pro4. I installed everything just fine except the the fan controller. I realized this after booting the pc and realizing the LEDS were off. So I plugged in the fan controller into a 4 pin I thought was a CPU fan slot and it wasn’t. It was a LED Ryzen slot. When I started the pc the slot i plugged it into sparked. I immediately pulled the plug after that. Now plugging fans individually, the LEDs light up for my fans and CPU but only for a second. I turn the switch off and on and it won’t power. It press the power button and reset switch and won’t on. I can unplug for a few minutes and it will do the same thing. Over again. I’m supposing the motherboard is fried. I don’t what to check

 

[GhislainG]

Aren't the connectors labelled? You'll have to RMA the motherboard.