Tuniq Tower Fan

[ste-sim2x9]

I have a tuniq tower but when the fan is on full power it sounds very loud. Is there another fan i can use to replace the stock one that is quet and will do the same job. And another thing can i make my motherboard turn the fan speed up when needed.

 

[ste-sim2x9]

No its not long been put in my system, I was looking at the Noctua NF-P12 (http://www.overclockers.co.uk/showproduct.php?prodid=FG-004-NC&groupid=701&catid=57&subcat=4)