on my second ultra. squeal/whine is worse and cant really stop at any fans speed....ugh
On my second squealer. Its getting hard not to return...ugh
I have both. On my second studio ultra with squealing. The 16 inch MacBook pro is Perfect. Let me say again Perfect. Return the studio and get the MacBook and don't look back.
I’m awaiting my first ultra, and this would be a problem for me too. Apple surely can’t be happy about it, any more than we are! First, it’s hard to build these (especially ultras) in a timely way right now. Replacing them hits the same problem. And - my guess - intense parts supply and staffing issues may be making it hard to find the cause of the noise.
Yet.
I've actually gotten used to mine, but I am very interested in learning just where the sound comes from and why!
There's a lot, relatively speaking, that users who have the issue can do to help solve this mystery...the first step in getting a solution. Some started already. Posts with spectrum screenshots, especially videos with additional data such as various fan speeds, mic distance/position from the box, Studio config, and so forth. Within reason, no such thing as "TMI" at this point as long as the variety of Starbucks or craft beer you're imbimg in while testing isn't included.
Mine is well out of the return period so I am stuck with repair and replacement now. I've dropped the fans down to 1100 and it helps. Seems to be loudest at the default fan setting.
I can’t imagine the amount of machines it is affecting being very low if the sampling of machines already reporting this problem is that high in just in one forum, MacRumors. I would imagine for PR purposes they are keeping the public facing support forums at the Apple website scrubbed of these reports, so we here aren’t and won’t be learning of the true size and scope of the issue. My guess it it is significant, but Apple isn’t going to disclose the true extent of the problem unless they are forced to by some governing body… and thats something that seemingly non-existent in the tech industry.
How high is "that high"? We don’t have a denominator so no idea of base rate. And macrumors is a biased (unrepresentative) population. It’s not a professional forum, but one self-selected on following apple’s ‘leading edge’ (or rumors about some assumed edge). This said, the fact some members here have the problem repeat with their replacement studios does suggest the problem could be significant. That’s the single statistically meaningful datum here. But I haven’t counted the number of these as, again, what‘s the denominator?
Don't worry friend, it'll become even louder as the time goes...
I'm sort of pushing the limits of my wheelhouse, but what you're describing sounds like this issue may be due to what is known as resonant frequency. It comes up in engineering vibration analysis, because in certain settings, it can cause real problems...dangerous ones. If covering/pressing on the area momentarily interrupts the whine, and it then returns, well, let me put it this way: I've seen/heard it before in a car I once owned. At a certain speed +/- 1 or 2 mph, something in the console would annoyingly vibrate. Cleaning out the contents didn't fix it, nor did resting my elbow on it. Never figured it out before selling the car. Wild guess, but a semi-experienced and educated one. OTH, since one poster demonstrated the freq might be correlated to fan speed, that may complicate things, or eliminate the aforementioned theory altogether. Dunno...yet.
Don't be so sure, I guess you have more chances of getting one with whine than getting a normal one. And even if it doesn't whine/whistle at the beginning, it will likely develop that sound over time. If you can't live with it, I suggest canceling the order asap. It can be VERY loud. I was able to correct it by setting the fan to 1190 today, but it may vary between models. Of course, even on 1190, it's not silent. I've tried 1230, 1260, 1100... Until I magically came to this RPM, but from my past experience, it'll develop the sound even on 1190 over time
Thankfully, I can live with it and I always use headphones while on computer so it's not any issue for me. In fact, if wearing headphones, you can't hear any frequency at all (and mine are not expensive or noise-cancelling ones either). My biggest fear is why is my GPU making noises when being used... Noises like if it's sparking from inside... Anyways, I'm not afraid as it'll serve me 3 years as my country is enforcing 2 years warranty + I'll buy an extra year just to be sure. After that I'll likely tade-in for newer model, but only if I don't see thousands of posts of whine on forums again.Nah, it can't be dangerous, it's solid block of aluminium or whatever other kind of metal. Even if it explodes from inside, it's not an issue 🤣. It can only stop working which warranty would solve, but I'm just extremely interested on what's the deal here and what's causing the issue. Since fan speed is making the difference, I can hardly believe it's something with PSU like most of the people are saying... There's more of a chance it's something with fans but at this point I simply have no idea... Really waiting for someone to take one apart and see where's the issue coming from... But it seems like nobody will as it's too expensive and opening it voids the warranty as far as I know...
It almost sounds as if you are redirecting the pressure of the wind flow off of the area that is vibrating… maybe we can do things NASCAR style and find out where by placing small amount of tape across certain areas of the intake grill… and by doing so reducing the airflow or causing the air to move and not hit whatever it is thats vibrating now?
www.rotorandwing.com
You're lucky it only sounds like a car. Get a Mac Pro "trash can." It not only looks like a jet engine, it frequently sounds like one. I've been in cockpits with engines running at full takeoff power and they made less noise than the one I'm currently typing this reply on sometimes does!
Assuming the "whine" is not coming from the motor(s) themselves, or any other component, and further assumming that the two fans (as alleged) are in (near) perfect sync, if the noise is coming from the fans, then you need to factor in the number of blades on the fan to derive the frequency potentially generated, IF, that's where the noise is originating. That's why I asked earlier if anyone has seen a pic and counted them.