Motherboard power properly working but processor fan not working

[kathir_84]

motherboard power properly working but processor fan on rotact once suddenly off system not working

 

[Xttony]

Replug all power cables. 4 pin connector beside the CPU 20 pin connector 4pin connector (may not be present) at the right topside of the motherboard.

reset the bios settings

If they don't work there might be a problem with your PSU or motherboard. Although i'd tell you to get a PSU from a friend and try it first.