I finished building my PC yesterday and after installing windows and general setup I noticed the CPU fan was very loud, I looked in the Bios and it is running at 2000 rpm (its a 2000rpm max fan). No matter what changes I make the to ideal CPU temp and min/max fan values it still stays the same, I've even swapped the fans and still the same story.
Motherboard: MSI Z77-G43
Fan: Zero Infinity Phantom Night stock fan
Fan 2: Zaward Golf Fan G3