I built my first computer about 2 years ago, and from pretty early on it would every so often have this really bad wheezing sound, kind of like revving an engine. Initally it wasn't so bad and I ...

1] Does the PSU fan spin on startup? Some users reported that their Power Supply Unit fan spins on startup but stops after some time. Others reported that the PSU fan does not spin even on startup.

the fan in the PSU seems to be noisy. HP Support already replaced the power supply but I still have exactly the same issue. I use this computer in a very quiet environment and it is considerably ...