FWIW Coil Whine affects some machines much more than others. The sad part is, coil whine is unpredictable, two machines with the same make/models can behave di

FWIW Coil Whine affects some machines much more than others. The sad part is, coil whine is unpredictable, two machines with the same make/models can behave differently. Coil whine is usually much more noticeable when you fully load a system too. What I would do is buy components and then fully load them as much as I could, and RMA anything with noticeable whine. It's not "normal", Dell XPSs for example were notorious for bad coil whine where as my macbook air doesn't have any at all.