This may be a silly question, but my PC is very noisy lately. I suspect the PSU and am prepared to buy and fit another.
But I just wanted to be sure that this is what is making the noise. It sounds like a fan and it comes and goes.
Could it also be one of my 2 hard drives or the main case cooling fan ?
Is there any way of checking, aside from taking the machine apart and then waiting days for the noise to appear ?