Coolermaster Case FAN got Really loud suddenly

[Hawke45]

All this time was really silent.. barely hear it..
its a 2000 RPM fan and i was really confused at first why it was so silent.
After i opened my case to replace an HDD. next power up the fan got REALLY LOUD.
i dont even know why

( i checked the cables,cleaned it, reinstalled it ) but nothing..
It just doesnt want to calm down.
Can you guys help me on what to do next that might lower the noise?
or what my causing the problem?

 

[Illuminations]

What fan is it? 3-Pin or 4-Pin? PWM? Was the fan plugged in correctly the first time?

A little more information, please. It'll really help.
You could also check your BIOS, in case you accidentally activated a turbo mode or something.

Thanks.

 

[Hawke45]

thanks for the reply.

ITs this one: http://www.coolermaster.com/cooling/case-fan/sickleflow-120-2000rpm-blue-led/

I havent checked the bios ( i will when i get home ) but how can i activated turbo...i just installed a new HDD

makes me think if it was not running properly in the first time..like...20% speed or smth...but how can that be possible

now its just way too noisy..not as before..

 

[Illuminations]

Well, in your BIOS, you can find, after some searching, profiles for your fans. Check them out.

Also, are they controlled by the motherboard? If so, they might have a turbo profile. Or, they we're not plugged in correctly before.

Good Luck!
Axel.

 

[Hawke45]

Hey man..I fixed it!.
Turns out my modular was giving full power to the fun making it run at Full Speed.
i connected the Fan on the motherboard and i got rid of the noise.I changed the setting to run on normal speed through bios

 

[Illuminations]

Great!
So I suppose now it's PWM controlled. So if your motherboard "thinks" that it needs more airflow, then it'll automatically run at the higher speeds.

Have a Great Day!
Axel.