Question Case that can only turn on by the motherboard

[Hyperdarkness]

So I'm new to PC building so I might have done something silly and not plug in. Cable or something but I have built my PC it runs fin but the only way I can tune for compuyer on is if I press the power_sw on the motherboard my case is the Coolermaster mastercase h500p mesh white, if anyone has any advice please help

 

[iMatty]

View: https://www.youtube.com/watch?v=b6q4h-lNHrU


That if the moderator that said i was posting to much and literally posted like 5 times to help people, but none the less watch the video you probably forgot to plug the front case buttons to the motherboard.