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MacBook 16-inch Fan Noise

We are testing two new 16-inch MacBook's before doing a rollout across our organization. Under low loads (25% cpu utilization), fan noise will get annoyingly loud. We're not doing any GPU related and more routine work such as: using web applications, debugging web pages, Microsoft Teams conferencing (audio/video) with a handful of people, Photos downloading from iCloud, Mac Mail downloading a new mailbox from Exchange.


We DID NOT notice this on our 2015 MacBooks and this might prevent us from continuing the 16-inch MacBook rollout in our organization.


Interested to hear others experiences.


Tim

MacBook Pro 16", macOS 10.15

Posted on Nov 21, 2019 11:34 AM

Reply
4,224 replies

Feb 28, 2020 6:20 PM in response to EngagingExposures

Anyone who has been following this thread knows my system has been running very quiet.


Tonight I go and open up my computer - on battery - and the computer is running very cool. However my fans are running like fairly high now and I'm not sure why - the computer is at 31C (5600 and 5200 RPM). I'll reboot and see. My screen flickered with a bunch of blue (like a bad analog TV signal) and other colors when it was waking up and I had my finger on the sensor, but it cleared up in a second or two and I entered my password. I checked if it had a kernel panic and rebooted and it hadn't.


UPDATE: in istat I changed the fans from system controlled to high and then back to system controlled and they went back to normal. Some kind of glitch I guess.

Feb 29, 2020 4:18 AM in response to TimUzzanti

Is there anyone with the replaced motherboard? I wonder if it helps :) By the way, it is not funny that they released the product without deep checking how it works under bigger pressure - a 4K display connected, MAC / Windows launched + games etc.


I'm also disappointed how AMD works with Apple on drivers update process for Windows (bootcamp). Apple says that drivers are provided by AMD, when I contact AMD, they say that Apple is responsible for providing drivers ...


Months and months are passing by, and we still have drivers for our PROs from 11/20/2019 - with errors, optimization problems etc. While Windows users got more updates in JAN, FEB ... As an Apple user, I should not be forced to use third-party drivers, modified to be able to use them on a Mac (if I want to have new releases).


Why did I start talking about drivers etc.? Who knows, maybe our problems are closely related to firmware or drivers?


Nevertheless I think that this is probably hardware issue. Strong processor + strong graphic card = a lot of heat. When we add thin laptop case limiting ventilation, then we might have situations described here.


I think my post will be deleted anyway :) It happens more often here recently.

Feb 29, 2020 4:46 AM in response to SzariK

SzariK wrote:

Is there anyone with the replaced motherboard? I wonder if it helps :) By the way, it is not funny that they released the product without deep checking how it works under bigger pressure - a 4K display connected, MAC / Windows launched + games etc.

I'm also disappointed how AMD works with Apple on drivers update process for Windows (bootcamp). Apple says that drivers are provided by AMD, when I contact AMD, they say that Apple is responsible for providing drivers ...

Months and months are passing by, and we still have drivers for our PROs from 11/20/2019 - with errors, optimization problems etc. While Windows users got more updates in JAN, FEB ... As an Apple user, I should not be forced to use third-party drivers, modified to be able to use them on a Mac (if I want to have new releases).

Why did I start talking about drivers etc.? Who knows, maybe our problems are closely related to firmware or drivers?

Nevertheless I think that this is probably hardware issue. Strong processor + strong graphic card = a lot of heat. When we add thin laptop case limiting ventilation, then we might have situations described here.

I think my post will be deleted anyway :) It happens more often here recently.


Well, abide by the rules in this playground and your posts can stay.


This is a fixable issue. The GPU and CPUs are no where near being put near the respective TDP's. I deal with these at work and everyone here seems to think that it affects all of them, it does not. They have to make sure whatever they do to solve it doesn't end up wrecking the other 99% of portables that don't have this issue.


Apple has always owned up to this stuff, always. Stop acting like you're dealing with a company that doesn't have a proven track record of resolving issues. This isn't Lenovo, Dell or Acer.


Driver issues are a tough one on BootCamp machines. Nvidia could barely ever produce a stable driver for their own hardware and never did really produce one that didn't have issues, especially when developing on Mac. Buggy, very buggy. Apple had to drop them, they're more interested in Miners because near 40% of the profit comes from them these days.

ATI on the other hand is much more responsive, but nowhere near what the PC folks have coming to them. That being said, the ATI updates are very small in what they offer as fixes hence the reason they come out so often.

Try out Bootcampdrivers.com, I'm running 19.50.11.10-200113a-350865E and they're working great.



Patience.

Feb 29, 2020 4:52 AM in response to SzariK

I am fully on your side! Apple has to do something and should’ve done it long time ago.


But I don’t think it’s a hardware issue I think it’s a driver or software issue since the graphic card doesn’t have to pull so much power for being Idle or for running an external display. And the fans don’t have to go this way up for the temperature. Last Generation MacBook Pro With a worse cooling system had a much more quieter profile for the fans. I have a MacBook Pro 2015 With no discrete graphics and it can run a 4K external monitor to without much heat, power consumption or without any noise! And can run every app like sketch with the shabby internal Intel graphics and it runs totally smooth so there is no need for discrete graphic for for so many apps. Why isn’t it possible to turn off the discrete graphics? The battery could run so much longer.

Feb 29, 2020 5:02 AM in response to artist999

I think you're right, kinda. Not hardware issue but the GPU takes a bit more juice than it did before. But the cooling is improved so it should balance out. Plus, the new power profiles available in the RDNA architecture make power management much more effective and linear in operation.


For your example and your 2015 the TDP on the CPU is 47 watts and the GPU is 50 Watts.


The 2019 has the TDP of the CPU at 45Watts and the GPU at 85 watts.


That being said, the new GPU is on average 300% faster.


This can be fixed in drivers. That falls under AMD's umbrella. Barking up the wrong tree, everyone?

Feb 29, 2020 6:12 AM in response to Community User

Patience.

All Apple has to do is acknowledge there's a problem they are working on fixing and it would be a huge relief to everyone here.


As for nVidia, they make much better and more stable GPUs than AMD, I wish Apple would make peace with them so we could have decent graphics cards on MacBooks again. I don't think they're making most of their money on miners anymore and they invest quite heavily in mobile GPU. No use pretending Apple isn't missing out on some great hardware due to their spat with nVidia.


Feb 29, 2020 6:46 AM in response to Community User

“I deal with these at work and everyone here seems to think that it affects all of them, it does not. They have to make sure whatever they do to solve it doesn't end up wrecking the other 99% of portables that don't have this issue.”


Dear knowsitsalls, are you saying that 99% of the 2019 Macbook pros with AMD 5500m don’t have this issue? Have you seen any such laptop connected to an external display and not requiring 20W from the discrete graphics card? Thanks.

Feb 29, 2020 8:05 AM in response to artist999

That's why they have a return policy; it obviously has issues for you.


There's no free lunch, so a high powered GPU is going to draw power, and power means heat which means fans.


Handbrake draws high power - how shocking that something that makes intense use of CPUs would do that.


Personally I still love mine and haven't seen it do anything I wouldn't expect a high powered laptop like the MBP 16 to do, though there have indeed been graphics issues for some here - and Apple Support is taking care of their machines as one would expect them to.

Feb 29, 2020 8:20 AM in response to SzariK

My friend,


I am posting here because it relates to my previous posts regarding loud fans ramping up with or without

it being connected to my external monitor when running light applications of Logic Pro x . I just experienced a flickering screen and now my computer has crashed a couple times with the following messages:


BAD MAGIC (flag set in boot panic header), no macOS panic log available**

panic cpu caller 6 **

panic cpu caller 2 **


PLEASE SEE VIDEO: https://youtu.be/9DtpHesTWGU


I am past my 14 day return window that's why I have not returned it. I have an apple appointment today.The reason I am posting here is to share information and see if its an isolated issue?

Feb 29, 2020 8:24 AM in response to artist999

And we have had at least 13 - 16inch MBP's with 3 different builds that all experience the same issues. Many of the people doing videos and reviews originally tested without monitors and thought their 16inch MBP's were fine. As they started to see people complain about these issues, they duplicated the problems with what they considered "working MBP's". From everything we are seeing, the issues exists on all 16inch MBP's.


I'm tired of my posts getting deleted while pro Apple posters are free to post whatever they want.


Its one thing to have issues with a product but then to have no response from Apple and then get muted in their community... really is disappointing.


Tim



Feb 29, 2020 8:28 AM in response to Community User

You mean we should be patient and wait 3 years until Apple releases a fix (new generation mob) to this like they did with their faulty previous keyboard?


sorry, no hope for a fast fix with this company’s bug fix history in last years.


hope apple realizes that there are problems when they read here and see the amount of returns. Since they sell refurbished this early I assume it’s been lot of returns.

Feb 29, 2020 8:34 AM in response to TimUzzanti

I'm tired of my posts getting deleted while pro Apple posters are free to post whatever they want.

Its one thing to have issues with a product but then to have no response from Apple and then get muted in their community... really is disappointing.

Yep, incredibly frustrating, and judging by your experience it's highly likely that they all have issues and people simply aren't noticing them because they don't use their MacBook Pros as intended - pro machines.

MacBook 16-inch Fan Noise

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