This thread is ridiculous; I just bought this computer tower and found my way here because the unit is buzzing wildly. Why should a consumer have to do these things when Dell is aware that they have a design flaw that requires attention? Unreal and disappointing.
I agree. Dell should have fixed this. But the solution I tried from this thread (adjusting the settings) has made the PC much less noisy. Important to say I use mine as a business PC, not for gaming.
I tried the second option. Not experienced enough to attempt the first !
It's early days so can't say whether it's fixed the noise issue but thanks for taking the time to post. Appreciated.