Has anyone pointed their iPhone oscilloscope at the mini and done an FFT to tell what frequencies are emitted and how strong they are?
Defective ears is a real possibility. I used to be able to hear 21kHz at reasonable volumes now it's 15 kHz on a good day.
Eyes do the same thine as you age. Used to see mag 7.5 objects, now it's more like 5.5 under dark skies.
I don't see why Apple would have to put a big enough inductor in a mini to produce audible whine. There's not that much high power stuff going on. Maybe Apple bought cheap fans with unbalanced Impellers? Centrifugal fans like in the earlier minis can spin pretty fast. The old 2012 Mini fan ran at about 2000 RPM on idle. If Apple used bushings instead of bearings that could make for a pretty good whine.
i7/32/512/1 Gb here. Has coil whine. It sounds like an old 2.5" HDD seeking, just like the prior recordings. Seems to be most noticeable during initial setup and installing software. Benchmarks as 1.9 GB/sec write, >2 GB/sec read as expected. Interestingly, the drive is completely silent during sustained read/write tests.
It is rather lame that best-in-class parts are not used with the prices charged...
Got mine today. Very very slight sound. I have to put my ear next to the Mac mini to really hear it.
Seems like (unfortunately) is a wide spread thing so I'm going to not return this, but rather get AppleCare ($89).
Everything else seems great!
Send apple another 100 for their build error. An error that the part can never be replaced.
Got my Mac mini replacement today, and it has coil whine too...
i dunno what to do, replace it one more time ? try a different build ? go for a Hackintosh ?
I spoke to an apple guy who understand the issue but he didn't has any case of coil whine with Mac mini 2018.
i7/8/128 here with the same SSD-whine previously mentioned in the thread. However, the only time I noticed it was when I put my ear next to it, and it's on my desk next to my monitor.
(cc @jean512)