I've had several EVGA power supplies on builds I've made in the past - they've all served me well, no complaints. This is the first time I've encountered coil noise in general, so much so that it took me a few Google searches to narrow it down. The coil whistling didn't affect PC performance but definitely irritated my ears. It whined every time I booted my computer from sleep for a good 10-15 minutes or just shut it down and then went away. Decided to bring it back with a Corsair PSU and I didn't whine about that.
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