Question Middle case-fan doesn't spin anymore ?

[GSACROVZ]

Hello Guys!!

I'm new on the forum, i hope it's the right section.
As by title, my front PC fan doesn't spin.

i give you some details:

I built the PC 1 year ago and I connected the fan's cable directly to the power supply.
The Cooler Master MasterBox MB511 RGB Midi-Tower case has 3 front fans, so I have in total 3 cables connected to the power supply.

In all this time I never connected the RGB led, because I didn't need it, and everything was perfect.
Yesterday, I also connected the RGB led, and it works perfectly, led and fans works.
But when i start the software to change the led colours (ASRock Polychrome RGB), i push the reset button on the case (connected to the led switch, the colours change but the fan in the middle stops spinning ?

What's happened?
How can i fix it?

Thanks in advance for your help guys!!

 

[Lutfij]

Welcome to the forums, newcomer!

Make and model of your motherboard? Can you also parse images of how you paired the connectors to each other and the motherboard? You should take note of the arrow on the RGB connector to correspond with the 12v output pin on the motherboard. Speaking of motherboards, what BIOS version are you on at the time of writing?