Noisy fan on start up

[McSteamy]

When I turn on my computer, sound is normal, quiet and steady. As the OS is loading, and reaches the lock screen EVERY TIME the noise revs up and stays there for the time I use my computer. I've checked though task manager if any demanding tasks open, I've cleaned my PC, checked rpm which is normal and GPU and CPU temps and usage. What's the problem?

 

[dudeman509]

Do you have any motherboard utilities installed that may be overriding the BIOS fan curves?

 

[McSteamy]

Do you have any motherboard utilities installed that may be overriding the BIOS fan curves?

Nope. Nothing. They've been the same since I've bought the computer. (Coming close to 1 year now)

 

[Generalshotz]

Reset BIOS to default settings, clean CPU and CPU fan with compressed air, change CPU fan header to another slot. Move RAM stick.. If none of that works then you may need to buy a new cpu\gpu fan or just deal with the noise.