Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I apologize again for my English
Unfortunately me can not understand

I always use common sense as an electronic engineer

1. No program will turn on the fan if the fan is turned off at the hardware level.
2. the fan is controlled by a multi-controller with its firmware (SMC) as well as flash ROM - This is hardware part has its own software.
3. I have been monitoring the temperature of my devices and RPM FAN since 2010 TGpro. Mac fan control compared to Tgpro, children's toys
4. my FAN stopped after switching to Catalina, if it were before I,d seen
5. I just want the FAN to not turn off but to idle 1200-1300RPM
6. Maybe someone knows how to configure the hardware from the command line
 
I apologize again for my English
Unfortunately me can not understand

I always use common sense as an electronic engineer

1. No program will turn on the fan if the fan is turned off at the hardware level.
2. the fan is controlled by a multi-controller with its firmware (SMC) as well as flash ROM - This is hardware part has its own software.
3. I have been monitoring the temperature of my devices and RPM FAN since 2010 TGpro. Mac fan control compared to Tgpro, children's toys
4. my FAN stopped after switching to Catalina, if it were before I,d seen
5. I just want the FAN to not turn off but to idle 1200-1300RPM
6. Maybe someone knows how to configure the hardware from the command line
Again, the fan stopping is normal behavior for this model, but this was not the case for all older models so what you saw in a 2010 computer doesn't apply with this one. The fan won't stop if the computer is under sufficient load. It is truly not necessary to worry about the fan speed, but Macs Fan Control, among other software, should be able to adjust the fan speed.
 
  • Like
Reactions: Sanpete
[QUOTE = "chrfr, post: 28436425, member: 338787"]
Опять же, остановка вентилятора - нормальное поведение для этой модели, но это было не для всех более старых моделей, поэтому то, что вы видели на компьютере 2010 года, неприменимо к этой. Вентилятор не остановится, если компьютер находится под достаточной нагрузкой. На самом деле не нужно беспокоиться о скорости вращения вентилятора, но Macs Fan Control, среди прочего, должен иметь возможность регулировать скорость вращения вентилятора.
[/ QUOTE]

and again you not hear me

I own this model for a year !!! and everything was perfect to catalina
No program will turn on the fan if the fan is turned off at the hardware level.
i want ventilation as it was before I have hot ssd installed he just needs ventilation
 
Just speculating here, so take this with a grain of salt.

It is a know fact that all 13" MacBook Pro models turn off their single fan when temperatures and CPU load will allow for it. Like I said this has always been the case with all 13" MacBook Pros (and, for that matter, all MacBook Airs) and is thus expected behavior. And that includes your 2015 model.

Now, given that you claim your fan was always running before you updated to Catalina I am going to go out on a limb here and speculate that it did so because you were running TGPro to control fan speeds manually. If that is in fact the case there could be two different issues here:

a) Apple updated the firmware preventing TGPro (or any other software) to reenable the fan manually (less likely)
b) TGPro is not 100% Catalina compatible and thus incapable of enabling the fan manually (more likely)

Because, again, the fan turning off completely is expected behavior with this particular model of MacBook Pro. If your fan was constantly running before you updated to Catalina it must have been because you did something to change the default behavior. However, I remember that I had absolutely no issues to manually enable the fan on my 2016 MacBook Pro with Macs Fan Control back in 2018. I have never heard of or used TGPro, so I can't comment on that, sorry.

PS: no need to keep apologizing for your English. I'm 100% certain that our Russian is much worse than your English :p
 
[QUOTE = "mj_, post: 28436556, member: 1079502"]
Просто спекулируйте здесь, так что возьмите это с крошкой соли.

Общеизвестно, что все 13-дюймовые модели MacBook Pro отключают один вентилятор, когда это допускают температура и загрузка процессора. Как я уже говорил, так было всегда со всеми 13-дюймовыми MacBook Pro (и, в этом отношении, все MacBook Air) и, таким образом, ожидается поведение. И это включает в себя вашу модель 2015 года.

Теперь, учитывая, что вы утверждаете, что ваш вентилятор всегда работал до того, как вы обновились до Catalina, я собираюсь остановиться здесь и предположить, что это так, потому что вы запускали TGPro для управления скоростью вращения вентиляторов вручную. Если это действительно так, то здесь могут быть две разные проблемы:

a) Apple обновила прошивку, не позволяя TGPro (или любому другому программному обеспечению) включить вентилятор вручную (менее вероятно)
б) TGPro не на 100% совместим с Catalina и, следовательно, не способен включить вентилятор вручную (более вероятно)

Поскольку, опять же, вентилятор полностью отключается, ожидается поведение с этой конкретной моделью MacBook Pro. Если ваш вентилятор постоянно работал до того, как вы обновили Catalina, это должно быть потому, что вы сделали что-то, чтобы изменить поведение по умолчанию. Однако я помню, что у меня не было абсолютно никаких проблем с ручным включением вентилятора на моем MacBook Pro 2016 года с Macs Fan Control еще в 2018 году. Я никогда не слышал о TGPro и не использовал его, поэтому не могу комментировать это, извините.

PS: не нужно извиняться за ваш английский. Я на 100% уверен, что наш русский намного хуже вашего английского :п
[/ QUOTE]ну тогда мне будет проще изложить , у меня была машина топовый конфиг macbook pro 15 2018года, я ее продал, так как считаю, что она не стоит своих денег, она раздражала меня с первого дня(по разным причинам), tgpro не вмешивается в работу системы охлаждения если ее об этом не просить и служит в роле индикации, так вот с этой машиной не было проблем с выключением кулеров, да их просто выключать нельзя, так как процессор полноценный (H) и не охлождать его нельзя, а в младших моделях процессора обрезаные (U). решил я вернуться на младший модельный ряд ( так как проблем с ними ни когда не было) да и в моей модели кулер 1 а не 2, я редко делаю обновление системы в принципе, и вот решил я поставить каталину до нее была хай сиера, и после этого стал отключаться кулер, а я не хочу чтобы он отключался вот и вся проблема, отключается он именно аппаратно!!! и ни какая программа в жизни его не включит, если кто знает как поправить настройку smc с помощью командной строки, я был бы очень признателен, меня как техника раздражает повышение температуры, да и я давно уже вернулся на хай сиеру и TGpro совсем тут не причем, вот я сижу пишу текст моя тепература 65 градусов и обороты 0, а если бы он вращался на холостом ходу КАК ЭТО ВСЕГДА БЫЛО то моя температура была бы 45, я когда то продал мид 14 своему знакомому, так у него стоит махави и кулер не останавливается но он его тоже не обновляет, поэтому он и вращается, его отключила апл, а я хочу включить вот и вся проблема
[automerge]1588699569[/automerge]
Just speculating here, so take this with a grain of salt.

It is a know fact that all 13" MacBook Pro models turn off their single fan when temperatures and CPU load will allow for it. Like I said this has always been the case with all 13" MacBook Pros (and, for that matter, all MacBook Airs) and is thus expected behavior. And that includes your 2015 model.

Now, given that you claim your fan was always running before you updated to Catalina I am going to go out on a limb here and speculate that it did so because you were running TGPro to control fan speeds manually. If that is in fact the case there could be two different issues here:

a) Apple updated the firmware preventing TGPro (or any other software) to reenable the fan manually (less likely)
b) TGPro is not 100% Catalina compatible and thus incapable of enabling the fan manually (more likely)

Because, again, the fan turning off completely is expected behavior with this particular model of MacBook Pro. If your fan was constantly running before you updated to Catalina it must have been because you did something to change the default behavior. However, I remember that I had absolutely no issues to manually enable the fan on my 2016 MacBook Pro with Macs Fan Control back in 2018. I have never heard of or used TGPro, so I can't comment on that, sorry.

PS: no need to keep apologizing for your English. I'm 100% certain that our Russian is much worse than your English :p

Вот он включился и как все стало хорошо с температурой, да его даже алгоритм работы вообще не понятный
 

Attachments

  • 20200505_201752.jpg
    20200505_201752.jpg
    335.3 KB · Views: 93
Last edited:
If you ask me you are WAY to preoccupied with the fan and CPU temperatures. Just let it be, let it do its thing, and enjoy it. There's no point in obsessing about it because, like you already noticed yourself and we keep telling you: there isn't much you can do about it anyway ;)
 
  • Like
Reactions: CooperBox
If you ask me you are WAY to preoccupied with the fan and CPU temperatures. Just let it be, let it do its thing, and enjoy it. There's no point in obsessing about it because, like you already noticed yourself and we keep telling you: there isn't much you can do about it anyway ;)
understand what is the matter...
I'm an electronic engineer, and see at what is working incorrectly I can't(
new products worse and worse,people fed bad keyboards for big money for three years,in the end, what have we come to, apple returned the old keyboard, for one and other reasons, I got rid of new products and returned to old
with a Steve, such a product would simply not enter the market
it makes me sad, and unfortunately there are no alternatives on windows
 
understand what is the matter...
I'm an electronic engineer, and see at what is working incorrectly I can't(
new products worse and worse,people fed bad keyboards for big money for three years,in the end, what have we come to, apple returned the old keyboard, for one and other reasons, I got rid of new products and returned to old
with a Steve, such a product would simply not enter the market
it makes me sad, and unfortunately there are no alternatives on windows

there was a time when I enjoyed APPLE products, device interactions, it was awesome, update improved device performance, when was Steve...What now ? defective products, and updates that degrade the performance of all products
 
So... you refuse to try Macs Fan Control because you "think" it is inferior to TGPro.

And you being an electronic engineer means you somehow know software engineering as well.

I mean... okay. But I'll say what others have been trying to say: please try Macs Fan Control, force the fan to max speed and see if that won't turn on the fan.

I know from experience that Macs Fan Control can actually affect enough of the SMC that it takes 3-4 SMC reset in order to revert back to Apple's behavior.
 
  • Like
Reactions: CooperBox
understand what is the matter...
I'm an electronic engineer, and see at what is working incorrectly I can't(
new products worse and worse,people fed bad keyboards for big money for three years,in the end, what have we come to, apple returned the old keyboard, for one and other reasons, I got rid of new products and returned to old
with a Steve, such a product would simply not enter the market
it makes me sad, and unfortunately there are no alternatives on windows
You are coming across in most of your posts as quite agressive which won't help in getting others to provide answers/solutions.
I think most have answered that there probably isn't a 'real' problem, and I tend to agree with them, but there appears to be a real problem with the way you are interpretating the 0 rpm indication.
Electronic engineer eh? I'm an engineer too, and I've worked with so many engineers in my time, and often when a problem arises they cannot 'see the wood for the trees' which in English means often very simple things pass them by because they are looking too deeply for a solution that can be very simple.
i) It's possible that TGPro is not totally compatible with your MBPro and Catalina - and yes I'm aware that they say it's for OS 10.10 or later. But that doesn't mean that there isn't a conflict with some other app you have installed.
ii) Do a test by deleting the TGPro app and see if that 0 rpm indication no longer appears. If you no longer have a 0 rpm indication and that the fan kicks in when the CPU is under load with no thermal shut-downs, you have NO problem.
iii) With the TGPro app still deleted, remove the rear cover and check that the fan runs when the CPU is under load. It should do.
iv) If the fan does not run when the CPU is under load, you HAVE a problem, and should contact Apple for repair.
 
So... you refuse to try Macs Fan Control because you "think" it is inferior to TGPro.

And you being an electronic engineer means you somehow know software engineering as well.

I mean... okay. But I'll say what others have been trying to say: please try Macs Fan Control, force the fan to max speed and see if that won't turn on the fan.

I know from experience that Macs Fan Control can actually affect enough of the SMC that it takes 3-4 SMC reset in order to revert back to Apple's behavior.

thank you for understanding me

mac fan controls and tgpro behave the same, I use tgpro because this tool is more powerful,I certainly dumped smc pram nvram and enough time has passed
 
Yeah. If you indeed have tried everything and still cannot get the fans to turn on, then it may indeed be a "problem".

I know I left my 13" MBP running on Mojave. I sensed a disturbance in the force.

The 16" MBP I have is still running into software issues. It's mostly and always software issues. Can't say I envy the folks who work on Catalina. They still have to deal with bugs day in and day out.
 
You are coming across in most of your posts as quite agressive which won't help in getting others to provide answers/solutions.
I think most have answered that there probably isn't a 'real' problem, and I tend to agree with them, but there appears to be a real problem with the way you are interpretating the 0 rpm indication.
Electronic engineer eh? I'm an engineer too, and I've worked with so many engineers in my time, and often when a problem arises they cannot 'see the wood for the trees' which in English means often very simple things pass them by because they are looking too deeply for a solution that can be very simple.
i) It's possible that TGPro is not totally compatible with your MBPro and Catalina - and yes I'm aware that they say it's for OS 10.10 or later. But that doesn't mean that there isn't a conflict with some other app you have installed.
ii) Do a test by deleting the TGPro app and see if that 0 rpm indication no longer appears. If you no longer have a 0 rpm indication and that the fan kicks in when the CPU is under load with no thermal shut-downs, you have NO problem.
iii) With the TGPro app still deleted, remove the rear cover and check that the fan runs when the CPU is under load. It should do.
iv) If the fan does not run when the CPU is under load, you HAVE a problem, and should contact Apple for repair.
hello, I'm too enthusiastic on electronics and I see what's behind the trees, especially for you I will take a photo,I do not want to offend anyone, aggression is unknowing language, if you read everything from the very beginning - apple says everything is fine. and about Catalina - I set high sierra back a long time ago)
[automerge]1588708691[/automerge]
Yeah. If you indeed have tried everything and still cannot get the fans to turn on, then it may indeed be a "problem".

I know I left my 13" MBP running on Mojave. I sensed a disturbance in the force.

The 16" MBP I have is still running into software issues. It's mostly and always software issues. Can't say I envy the folks who work on Catalina. They still have to deal with bugs day in and day out.
here !!!
the first person to hear me)
I also think this is a software bug
[automerge]1588709230[/automerge]
You are coming across in most of your posts as quite agressive which won't help in getting others to provide answers/solutions.
I think most have answered that there probably isn't a 'real' problem, and I tend to agree with them, but there appears to be a real problem with the way you are interpretating the 0 rpm indication.
Electronic engineer eh? I'm an engineer too, and I've worked with so many engineers in my time, and often when a problem arises they cannot 'see the wood for the trees' which in English means often very simple things pass them by because they are looking too deeply for a solution that can be very simple.
i) It's possible that TGPro is not totally compatible with your MBPro and Catalina - and yes I'm aware that they say it's for OS 10.10 or later. But that doesn't mean that there isn't a conflict with some other app you have installed.
ii) Do a test by deleting the TGPro app and see if that 0 rpm indication no longer appears. If you no longer have a 0 rpm indication and that the fan kicks in when the CPU is under load with no thermal shut-downs, you have NO problem.
iii) With the TGPro app still deleted, remove the rear cover and check that the fan runs when the CPU is under load. It should do.
iv) If the fan does not run when the CPU is under load, you HAVE a problem, and should contact Apple for repair.
[automerge]1588709348[/automerge]
You are coming across in most of your posts as quite agressive which won't help in getting others to provide answers/solutions.
I think most have answered that there probably isn't a 'real' problem, and I tend to agree with them, but there appears to be a real problem with the way you are interpretating the 0 rpm indication.
Electronic engineer eh? I'm an engineer too, and I've worked with so many engineers in my time, and often when a problem arises they cannot 'see the wood for the trees' which in English means often very simple things pass them by because they are looking too deeply for a solution that can be very simple.
i) It's possible that TGPro is not totally compatible with your MBPro and Catalina - and yes I'm aware that they say it's for OS 10.10 or later. But that doesn't mean that there isn't a conflict with some other app you have installed.
ii) Do a test by deleting the TGPro app and see if that 0 rpm indication no longer appears. If you no longer have a 0 rpm indication and that the fan kicks in when the CPU is under load with no thermal shut-downs, you have NO problem.
iii) With the TGPro app still deleted, remove the rear cover and check that the fan runs when the CPU is under load. It should do.
iv) If the fan does not run when the CPU is under load, you HAVE a problem, and should contact Apple for repair.
[automerge]1588709380[/automerge]
You are coming across in most of your posts as quite agressive which won't help in getting others to provide answers/solutions.
I think most have answered that there probably isn't a 'real' problem, and I tend to agree with them, but there appears to be a real problem with the way you are interpretating the 0 rpm indication.
Electronic engineer eh? I'm an engineer too, and I've worked with so many engineers in my time, and often when a problem arises they cannot 'see the wood for the trees' which in English means often very simple things pass them by because they are looking too deeply for a solution that can be very simple.
i) It's possible that TGPro is not totally compatible with your MBPro and Catalina - and yes I'm aware that they say it's for OS 10.10 or later. But that doesn't mean that there isn't a conflict with some other app you have installed.
ii) Do a test by deleting the TGPro app and see if that 0 rpm indication no longer appears. If you no longer have a 0 rpm indication and that the fan kicks in when the CPU is under load with no thermal shut-downs, you have NO problem.
iii) With the TGPro app still deleted, remove the rear cover and check that the fan runs when the CPU is under load. It should do.
iv) If the fan does not run when the CPU is under load, you HAVE a problem, and should contact Apple for repair.

 

Attachments

  • 20200505_230505.jpg
    20200505_230505.jpg
    482.1 KB · Views: 91
  • 20200505_230513.jpg
    20200505_230513.jpg
    315.1 KB · Views: 116
Last edited:
You are coming across in most of your posts as quite agressive which won't help in getting others to provide answers/solutions.
I think most have answered that there probably isn't a 'real' problem, and I tend to agree with them, but there appears to be a real problem with the way you are interpretating the 0 rpm indication.
Electronic engineer eh? I'm an engineer too, and I've worked with so many engineers in my time, and often when a problem arises they cannot 'see the wood for the trees' which in English means often very simple things pass them by because they are looking too deeply for a solution that can be very simple.
i) It's possible that TGPro is not totally compatible with your MBPro and Catalina - and yes I'm aware that they say it's for OS 10.10 or later. But that doesn't mean that there isn't a conflict with some other app you have installed.
ii) Do a test by deleting the TGPro app and see if that 0 rpm indication no longer appears. If you no longer have a 0 rpm indication and that the fan kicks in when the CPU is under load with no thermal shut-downs, you have NO problem.
iii) With the TGPro app still deleted, remove the rear cover and check that the fan runs when the CPU is under load. It should do.
iv) If the fan does not run when the CPU is under load, you HAVE a problem, and should contact Apple for repair.
 

Attachments

  • 20200505_231332.jpg
    20200505_231332.jpg
    236.6 KB · Views: 79
Yeah, what's funny is that you're seeing the other extreme of a different problem: some others are reporting that their fans are on too much and their MacBooks are too loud after Catalina update.

Now... I'm sure the folks at TGPro or Macs Fan Control can probably figure out how to force the fan to stay on if the switch is indeed a software one. So if you are not getting through to Apple, perhaps reach out to TGPro.

Or... as a last resort, "hack" one of the +5V points to feed a constant PWM to the fan and intercept Apple's signal. That should turn it on constantly and Apple can't do anything in software to turn it off. I'm not sure if you'll have enough room in the casing to fit that extra circuit, but it's probably your only solution if push comes to shove.
 
That photo shows that the fan is set to automatic, and that it's stopped as per normal operation. If you want that app to control the fan, click on the "Custom" button and set the speed however you wish. It shows exactly the same thing on my 2018 MacBook Pro, but there are 2 fans in that model, so I see a left and right fan, both at 0 rpm, with the CPU temperature currently at 45ºC.
 
Yeah, what's funny is that you're seeing the other extreme of a different problem: some others are reporting that their fans are on too much and their MacBooks are too loud after Catalina update.

Now... I'm sure the folks at TGPro or Macs Fan Control can probably figure out how to force the fan to stay on if the switch is indeed a software one. So if you are not getting through to Apple, perhaps reach out to TGPro.

Or... as a last resort, "hack" one of the +5V points to feed a constant PWM to the fan and intercept Apple's signal. That should turn it on constantly and Apple can't do anything in software to turn it off. I'm not sure if you'll have enough room in the casing to fit that extra circuit, but it's probably your only solution if push comes to shove.
Thank you for understanding
of course I could solve this problem by interfering with the motherboard, but why ?I just want it to be as before, problem in software,and the company does not consider it necessary to decide.I turned to the developers of external programs, I hope they solve this problem macfan/tgpro
 
Or... as a last resort, "hack" one of the +5V points to feed a constant PWM to the fan and intercept Apple's signal. That should turn it on constantly and Apple can't do anything in software to turn it off. I'm not sure if you'll have enough room in the casing to fit that extra circuit, but it's probably your only solution if push comes to shove.
None of this is necessary. Macs Fan Control can be set to ramp up the fans based on specific sensor temperatures. The paid version of the program adds additional controls and automation.
[automerge]1588710590[/automerge]
The Macs Fan Control website even specifically addresses this situation and explains it is totally normal. From https://crystalidea.com/macs-fan-control/faq
Why is Macs Fan Control reporting 0rpm for one of my fans?
It's ok if you have MacBook Pro 13 inch 2015/2016, these models turn off the fan when the CPU temperature is low enough.
 
Yeah, what's funny is that you're seeing the other extreme of a different problem: some others are reporting that their fans are on too much and their MacBooks are too loud after Catalina update.

Now... I'm sure the folks at TGPro or Macs Fan Control can probably figure out how to force the fan to stay on if the switch is indeed a software one. So if you are not getting through to Apple, perhaps reach out to TGPro.

Or... as a last resort, "hack" one of the +5V points to feed a constant PWM to the fan and intercept Apple's signal. That should turn it on constantly and Apple can't do anything in software to turn it off. I'm not sure if you'll have enough room in the casing to fit that extra circuit, but it's probably your only solution if push comes to shove.
I'm more concerned with proper cooling, if these users saw at what temperatures the mac gets noisy,maybe then the hair stood on end, easy to cook fried eggs)
 
The Macs Fan Control website even specifically addresses this situation and explains it is totally normal. From https://crystalidea.com/macs-fan-control/faq

Well, I guess you kind of answered your own question then.

Not even Macs Fan Control can do anything about it. Hardware intervention is the only possible solution then. Good luck, OP!

I guess I can suggest a software "fix", which is to simply poll the processor constantly so it's not able to idle. In which case, it'll boost temperature above a certain number and not allow the fan to turn off at all. But that'll degrade system performance, so... pick your poison, I guess.
 
I’m not the OP.

I know. But you mentioned that hardware intervention is not necessary, and within the same post you also mentioned that Macs Fan Control admits to being unable to control fan speed when the fan is turned off.

So it is necessary.
 
I know. But you mentioned that hardware intervention is not necessary, and within the same post you also mentioned that Macs Fan Control admits to being unable to control fan speed when the fan is turned off.

So it is necessary.
No, that’s not what that’s saying. Apple’s default operation is to allow the fan (or fans) to stop if thermal load is low enough, but MacsFanControl can override that and set a new baseline fan speed.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.