Hello, my late 2013, 13" retina mbp started doing a weird noise. It sounds like something you'd expect from an old skool mechanical drive. But this is an all flash machine. From what I understand the only moving part should be the fan? But it does not really sound like one. I recorded the sound here, its not very loud so turn up your speakers I stopped using it immediately when I noticed and bought a new one, since I don't want to experience a melt down from overheating or similar. Now I am wondering if this Is something I should be able to fix, since in working order this maxed out 2013 mbp (512gb / 16gb) should still be worth some cash.