Ric Ford <firstname.lastname@example.org> noted that the System Update 2.0.1 does not replace the Software Update previously released since System Update 2.0.1 does not include MacCheck, a useful diagnostic utility.
How Loud Are Your Mac's Fans?
When they get hot, Macs turn on various internal fans to keep components cool. The noise can be annoying, but just how loud is it? If you have an iOS device with a built-in microphone, you can download one of many free sound meter apps (search on
decibel in the App Store) and see if you're subjecting your ears to a truly unreasonable noise level.