Case fans do not spin, and the LED lights don't turn on either

[oldfashionpc]

An issue came up where my computer would turn on with no problem at all, however, the fans located at the top, front, and side of the case do not turn on. The LED lights for the fans don't even turn on either!! Everything else runs fine except for the fans. Need some help!

 

[CountMike]

Where are they plugged into ?

 

[oldfashionpc]

Where are they plugged into ?

I just found out this morning that one of the molex adapter had a lose wire, so when i pushed it into the psu, the wire behind the molex adapter would be pushed out. I just replaced that molex adapter with a new one, and all the fans was able to turn on again.