I buy this processor FX 8320, with stock cooler. CPU is not overclocked. All is well, but I think that the cooling fan is too loud and works at very high RPM. During operation, in the operating system without high load CPU maintain a temperature of 45 degrees, and stock fan up to 6000 RPM.... My Motherboard is GA 990xa - UD3, OS Windows 7 Ultimate x64. I enabled the automatic fan control of BIOS... Is this normal for this CPU ?