On lowest setting it is pretty silent (depends on the rest of your components really) but with fans on full though the noise is noticable... nothing terrible really to be honest and I was really surprised how good the fans are.
Word of advice tho, change the fan from the side (in the window panel ) to the bottom in front of PSU as for some reason it is really noisy in that spot.
Word of advice tho, change the fan from the side (in the window panel ) to the bottom in front of PSU as for some reason it is really noisy in that spot.