LGA 775 Heatsink noise problem
I hear my heatsink fan noisy. Its not like that something is stuck on the fan but rather its like something that is like when your inside an aircraft and the engines at idle. Sorry I dont know what words will I describe the sound. Im annoyed especially when playing some games or music. The heatsink is the stock one and I plan to change on a third party cooler. But before that, is there something that might be a problem? Need help please.
My friend uses also an LGA processor and his fan is not noisy compared to mine. What seems to be the cause?
***EDIT Add to it this noise Im experiencing is already happening as early as I bought the processor ***