MacBook 16-inch Fan Noise

post got deleted

Your's is looking better. Hopefully after indexing everything will work well.

here is a interesting bit of history:

I was exporting videos from FCPx. Both integrated and GPU are heavily used at the same time

1. on the left side of the graphs was exporting the 4k version
2. on the right side was exporting a lower res version for Facebook. Required a whole lot more power from the AMD

I didn't realize how much the intel gpu was being utilized even when set to using GPU.

Summary of the Situation: 

1- Fan Noise and Heat issues at MacBook Pro 16 Inches. 

2- All Models are affected. 

3- It looks like all MBP 16 are defected. 

4- The issue appears connecting external device to the USB-C. In special external display.

5- Issue is affecting to all kind of displays and resolutions,4K, Full HD. 

6- Several test shown it is a hardware issue. (Test running with windows software shows same results).(Latest software updates have not improved the situation). Other users could consider a software issue.

7- If you have any issue is recommended  to report to Apple. https://www.apple.com/feedback/

8- Till now Apple has not reported any issue.

9- It is a worldwide issue and not an special Lot of computers. From Poland to USA, Germany and Italy.... worldwide is reporting the same failure at fan noise and overheating at just browsing.

10-Some test shown the issue is in relation with the GPU. 

11-Apple support has not informed until now about the issue.

12-I returned twice the MBP within the 15 days period of guarantee. 

13-All the users that have contacted Apple support and followed the indications of Apple support, for example : restart in safety mode and so on.. have not observed any improvement.

14-Bunch of people is waiting for a solution or communication from Apple in order to buy a new MBP. (Fourth months gone).. 

15-Several people reported that computer work almost properly with no external connections. 

16-Fan loud Issue improve if you close the lid. 

17-Some people reporting better behaviour if you connect MBP to a dock.  Some people reporting the there is not improvement even with connection to a Dock. 

18-Some people reporting the fans goes crazy just connecting external hard drive. This was my case connecting hard drive through a hub to the USB- C. 

19- Some people describe improvement playing with the display resolutions. 

I gave up my hope. I am not going to buy anymore the BMP.16 inches.

dcristof wrote:

"Designed for those who defy limits and change the world, the new MacBook Pro is by far the most powerful notebook we’ve ever made. With an immersive 16-inch Retina display, superfast processors, next-generation graphics, the largest battery capacity ever in a MacBook Pro, a new Magic Keyboard, and massive storage, it’s the ultimate pro notebook for the ultimate user."

What there is untrue? Every sentence is correct.

Doesn't sound like they are saying I should buy a MacPro.

Don't be ridiculous. The page for the MacBook Air doesn't suggest what you should or shouldn't buy, either, but you're not going to be happy editing multiple streams of 4K ProRes in Final Cut X on one.

Asking users to post iStat results qualifies as a poll, which is forbidden by the Terms of Use.

Asking about macOS 10.15.4 is asking about software which is still in beta, which is also forbidden by the Terms of Use.

There are plenty of other Mac forums available on other sites where you can do those things if desired.

Yes, just search for "Bad magic," and you'll find a lot of panic logs for the MBP 16" and similar panic logs for many older Mac models that incorporated the T2 chip. Many threads about this are on this board: https://discussions.apple.com/thread/250826263?page=17 ; https://discussions.apple.com/thread/250905859 ; https://discussions.apple.com/thread/250892382 . The cause of the errors may be different on other models, though the error messages are similar. My kernel panics only happened while the computer was connected to an external monitor, though. I've since returned the computer and am waiting for a replacement, so my testing has temporarily ended.

My main point in the previous post was that it's inaccurate to say Reddit posters have no complaints about their MBP 16" machines. They do. People are posting about the heat/fan noise and kernel panics across many sites.

Most folks' panic logs that I've seen look nearly identical to mine (first part included below):

{"caused_by":"macos","macos_version":"Mac OS X 10.15.3 (19D76)","os_version":"Bridge OS 4.2 (17P3050)","macos_system_state":"running","incident_id":"E22A32A0-8C64-4CCB-B8C0-86252265A7EE","timestamp":"2020-03-14 13:25:20.57 +0000","bug_type":"210"}

{

"build" : "Bridge OS 4.2 (17P3050)",

"product" : "iBridge2,14",

"kernel" : "Darwin Kernel Version 19.3.0: Tue Jan 7 22:39:04 PST 2020; root:xnu-6153.81.3~2\/RELEASE_ARM64_T8010",

"incident" : "E22A32A0-8C64-4CCB-B8C0-86252265A7EE",

"crashReporterKey" : "c0dec0dec0dec0dec0dec0dec0dec0dec0de0001",

"date" : "2020-03-14 13:25:20.23 +0000",

"panicString" : "panic(cpu 1 caller 0xfffffff022fce1a8): x86 CPU CATERR detected\nDebugger message: panic\nMemory ID: 0x6\nOS version: 17P3050\nmacOS version: 19D76\nKernel version: Darwin Kernel Version 19.3.0: Tue Jan 7 22:39:04 PST 2020; root:xnu-6153.81.3~2\/RELEASE_ARM64_T8010\nKernel UUID: 1ADCA0F6-ECFD-396B-A941-C89CF563047F\niBoot version: iBoot-5540.80.2\nsecure boot?: YES\nx86 EFI Boot State: 0x16\nx86 System State: 0x0\nx86 Power State: 0x0\nx86 Shutdown Cause: 0x3\nx86 Previous Power Transitions: 0x10001000100\nPCIeUp link state: 0x89473614\nPaniclog version: 13\nKernel slide: 0x000000001af60000\nKernel text base: 0xfffffff021f64000\nmach_absolute_time: 0x85116c06bf\nEpoch Time: sec usec\n Boot : 0x5e6c44a1 0x000f02cf\n Sleep : 0x5e6cbf35 0x00000ec4\n Wake : 0x5e6cbf50 0x000a0522\n Calendar: 0x5e6cdb22 0x0003282c\n\nPanicked task 0xffffffe00040b600: 3224 pages, 214 threads: pid 0: kernel_task\nPanicked thread: 0xffffffe000721a68, backtrace: 0xffffffe015ddb4c0, tid: 361\n\t\t lr: 0xfffffff02281c3a0 fp: 0xffffffe015ddb500\n\t\t lr: 0xfffffff02281c200 fp: 0xffffffe015ddb570\n\t\t lr: 0xfffffff022936f04 fp: 0xffffffe015ddb620\n\t\t lr: 0xfffffff022e2d610 fp: 0xffffffe015ddb630\n\t\t lr: 0xfffffff02281bb78 fp: 0xffffffe015ddb9a0\n\t\t lr: 0xfffffff02281bec0 fp: 0xffffffe015ddb9f0\n\t\t lr: 0xfffffff02369a8ec fp: 0xffffffe015ddba10\n\t\t lr: 0xfffffff022fce1a8 fp: 0xffffffe015ddba40\n\t\t lr: 0xfffffff022fbf204 fp: 0xffffffe015ddbab0\n\t\t lr: 0xfffffff022fc127c fp: 0xffffffe015ddbb50\n\t\t lr: 0xfffffff022fbe91c fp: 0xffffffe015ddbbe0\n\t\t lr: 0xfffffff022f85d98 fp: 0xffffffe015ddbc10\n\t\t lr: 0xfffffff022d9e000 fp: 0xffffffe015ddbc50\n\t\t lr: 0xfffffff022d9d8d8 fp: 0xffffffe015ddbc90\n\t\t lr: 0xfffffff022e38514 fp: 0x0000000000000000\n\n",

"panicFlags" : "0x102",

"otherString" : "\n** Stackshot Succeeded ** Bytes Traced 111120 **\n",

"macOSPanicFlags" : "0x0",

"macOSPanicString" : "BAD MAGIC! (flag set in iBoot panic header), no macOS panic log available",

"memoryStatus" : {"compressorSize":0,"compressions":0,"decompressions":0,"busyBufferCount":0,"pageSize":16384,"memoryPressure":false,"memoryPages":{"active":6568,"throttled":0,"fileBacked":10149,"wired":5394,"purgeable":56,"inactive":2630,"free":11496,"speculative":4182}},

"processByPid" : {

BAD MAGIC issue is a cooperation problem related to the T2 chip.

The first line of attack is to do an SMC reset, using the approved procedure. If no joy, Users who have had their mainboards replaced report that the problems was solved.

How to reset the SMC of your Mac - Apple Support

.

Thanks. I'm hesitant about derailing this thread, though. There are tons of other threads with info on MBP 16" kernel panics, though it's not solved for the majority of users: e.g. https://discussions.apple.com/thread/250826263?page=17

Same here, the discrete GPU is not spiking at 100% but all the other issues are still present.

Now that my old iPad Pro is having trackpad support, my iPad Pro is becoming my main computer when using an external monitor (having $45000 machine and having to use an old $1000 device is unbelievable).

Today I was checking the support page and I found a lot of issues related to the MacBook Pro 16-inch, most of them related to the discrete GPU (kernel panics, battery drainage, color issues, external monitors not working, fan noise, overheating).

Here is a list of some of them:

https://discussions.apple.com/thread/251211240

https://discussions.apple.com/thread/251212097

https://discussions.apple.com/thread/250944058

https://discussions.apple.com/thread/251212622

https://discussions.apple.com/thread/251209922

https://discussions.apple.com/thread/250876794

https://discussions.apple.com/thread/250887665

https://discussions.apple.com/thread/251206230

https://discussions.apple.com/thread/251196427

https://discussions.apple.com/thread/251206977

https://discussions.apple.com/thread/251210128

https://discussions.apple.com/thread/250926934

https://discussions.apple.com/thread/251192854

https://discussions.apple.com/thread/251007634

https://discussions.apple.com/thread/251208530

https://discussions.apple.com/thread/251202423

https://discussions.apple.com/thread/251204713

https://discussions.apple.com/thread/251163041

https://discussions.apple.com/thread/251173282

https://discussions.apple.com/thread/250938529

I think we can all agree that there is an issue with the MacBook Pro 16-inch. Hopefully is just software related and Apple will fix it (hopefully this year....)

igors192 wrote:

...

Also will using just USB-C -> DisplayPort cable prevent so called "legacy" mode?

Yes, it appears that directly connecting a DisplayPort display using only an adapter (and not a dock) does not force the Discrete graphics chip into high-power RAM mode.

The Apple store sells a Moshi DisplayPort cable that is rated for "5K"

https://www.apple.com/shop/product/HLR62ZM/A/moshi-usb-c-to-displayport-cable

.

Correct - they use contacts to Apple Support to gauge how many people are experiencing an issue and the severity (and thus priority to their engineers.)

Though some attention may be paid here, it's definitely an unofficial support channel.

Contact - Official Apple Support

Power drawn by a GPU while drawing a screen literally has nothing to do with power delivered through a USB-C port whatsoever.

I can't imagine how your issues would be connected at all unless you connect and disconnect that monitor cable daily and doing so has put excess stress on the port which has caused fatigue or wear.

Regardless, if you are having issues with a port or if you are experiencing graphics issues using an external monitor, there is one solution:

Contact - Official Apple Support

Contacting Apple Support is the only way to get anything fixed.

They have the power to replace machines and issues get raised in importance for engineering staff according to the number of support calls received on an issue.

The number of posts made here make little to no difference as compared to number of support requests made via Apple Support.

So while they may not directly acknowledge or verify an issue, they are the conduit through which all fixes and hardware replacements flow.

Contact - Official Apple Support

TimUzzanti wrote:

Why would Raimiss's post get removed about the Avatar and points required? At some point, we have a Free Speech issue!

This is not a "free speech" zone, you must adhere to the Apple Support Communities Terms of Use to post here and agreed to adhere to them when creating a login.

Accordingly, moderators can and do remove posts that violate those terms.

Apple Support Communities Use Agreement - Apple Community

Hi guys!

I posted here about 50-60 pages ago.

Since then, my MacBook was 2 time in authorized Apple Service and 2 time they claimed that there is no problem with this machine but my macbook like almost everyone's here have fan and heat issues.

But... Today I spent almost one hour on a call with Apple's Technician, and have some bad news to all people heaving issues with this machine.

My case was escalated to engineering team and they respond that it's normal that this computer is hotter with external monitor. That normal CPU temperatures are 80 - 110 Celsius and noisy fans are normal when there is heat. Also loud fan are normal...

But technician guy I spoke with said that I'm not first person who have problems with 16" macbook with i9 CPU and for now there is only one solution - wait till Apple will start a recovery program which will happen when there will be a lot of people with problem.

He also suggested me to install Mojave and check if problems are solved using this macos version.

If yes it would be Catalina issue. If not it would be a hardware issue.

I can't do that now because my macbook is in service. Maybe one of you can check that?

He send me this link https://support.apple.com/en-us/HT201372

And now one IMPORTANT thing:

All of you have to call Apple support and your case have to be escalated to engineering team because this is only way to make Apple notice a problem.

Calling Apple support without escalating your case to engineering team will not make Apple noticing a problem.

Any rudeness or other emotional content you read is not present in my simple declarative sentences.

¿Does it get any quieter if you switch to closed clamshell mode?

Use your Mac notebook computer in closed-display mode with an external display - Apple Support

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Certainly systems with graphics issues should be examined by Apple Support.

Spinning up a VM instance (Parallels, Virtual Box, etc.) is far from a light task, in fact it's one of the most processor-intensive things you can do short of working with multiple streams of 4K video in real time.