I have brought MSI 790FX-GD70 with AMD phenom 965 3.4ghz processor , after assembling the parts when i switch on the system then the fan of the AMD processor creates sound just like it is overloaded in normal condition [ just like when 3d application renders a image or a movie or when playing games ] the speed of that processor fan is about 6900 RPM , is there any setting in BIOS for the motherboard to control or to reduce the speed or noise of that fan .