Fan running at 6000RPM majority of time, Fan running at 6000RPM majority of time

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Fan running at 6000RPM majority of time, Fan running at 6000RPM majority of time

Over the past two weeks my MacBook Pro has been regularly having issues with the fan constantly running at 6000 RPM after being on for about half an hour on most days and sometimes shorter or longer. originally i thought the problem was in relation to a kernel process as it started running at 300% around the same time however after fixing that issue by removing the model identifier from ACPI_SMC_PlatformPlugin.kext/contents/resources and having the fans cleaned out the issue is still occuring.

i have tried a partial and full restore of the system as well as a fresh install on a new hard drive however both the kernel and the fan problem reappears with each step taken. while the kernel problem is easily solved i was wondering if the fix was causing the fan issue to continue due to the file deleted or if there is a underlying software / hardware problem due to this problem persisting through restores and clean installs.

At this moment the fan seems to be running okay however for the past few days after a short while the fan started reaching 6000RPM with no tasks running and i am not convinced that the problem has been solved as nothing has been done to the machine since yesterday. Is anyone able to offer me any assistance as to what might be going on or if it is most likely a hardware problem and has to be dealt with through apple directly, all help is greatly appriecated

MacBook Pro

Posted on Jun 17, 2014 4:14 AM

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Answer 1

a brody

Level 10

85,314 points

Jun 17, 2014 4:20 AM in response to addison99

Were there issues with the machine overheating before you attempted to monitor the fans or alter them? If there were, and you ran the hardware test that came with the Mac with no result, the problem could be the RAM or power supply. If you weren't having problems before, and only after find out how to remove that software. If you did get an error with the hardware test, call AppleCare and tell them you need a repair. Read this tip what I have to say about heat on Macs:

https://discussions.apple.com/docs/DOC-2123

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Answer 2

addison99 Author

Level 1

0 points

Jun 17, 2014 8:00 AM in response to a brody

Hi

The fan spinning has never seemed to be in relation to the system overheating as far as i have been able to tell and when i checked the fan compared to what i have come to expect the amount of fluff / dust was minimal and shouldent have been causing any issues. The highest i have seen the temperature go even while the knernal process was at 300% was around 50C.

After running another hardware test with the software that is supplied with the machine it has still encountered no problems and while checking the overall heat of the machine including the battery nothing seems to be out of place, even potentially a little cooler than i would ordinarily expect.

Would there be any way you could suggest that might help pinpoint the problem or would the best bet be to contact applecare at this stage?

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Answer 3

OGELTHORPE

Level 9

57,329 points

Jun 17, 2014 8:13 AM in response to addison99

Have you executed a SMC reset?

http://support.apple.com/kb/ht3964

Have you run an Apple Hardware Test?

http://support.apple.com/kb/ht1509

Ciao.

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Answer 4

addison99 Author

Level 1

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Jun 17, 2014 8:41 AM in response to OGELTHORPE

I have ran the apple hardware test twice recently and it has come up with no problems found, i have also just attempted the SMC reset and it has made no change at all. The machine has been okay for several hours today however the fan has suddenly picked up again without any indication as to why it has as the processes sit around 5-10% and the machine seems to run fine otherwise.

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Answer 5

OGELTHORPE

Level 9

57,329 points

Jun 17, 2014 10:10 AM in response to addison99

The Apple Hardware Teat is not 100% definitive if there is a 'no errors' result.

There has to be a reason why the fans spin to 6000 rpm. It has to be heat, a runaway application or a failed sensor. I think that a Apple store genius bar appointment is your best option. They have superior tests available at their disposal and may be able to define the problem. These evaluations are FREE!

Ciao.

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