Their setup it's arguably contrived. HHD is in an external enclosure with a fan. While they turn the fan too max power in an attempt to get a more typical or "w

Their setup it's arguably contrived. HHD is in an external enclosure with a fan. While they turn the fan too max power in an attempt to get a more typical or "worst case" setup, it seems to me that is far from a common setup of a hard drive inside a computer chassis with associated mounting hardware between the HHD and source of speech.