Set Max Fan Speed

Question

Level 1

8 points

Set Max Fan Speed

Hello i am ahmad from jambi, i want to ask is there a way to set max fan speed, because my fan run with full speed around 4500 rpm my guest, but the weird is stat pro show the speed is 0(zero) rpm, i already send my iMac to service on Authorised Service Apple on jakarta, after over one month they just reinstall and send to me, for now i can’t send my iMac to service because i have lot a work to do due to the service before took to long.

Note :

iMac MD093 Late 2012 21.5”

Result Apple Hardware Test. Alert Message : 4M0T/4/40000002: Main - 0

I do not upgrade anything on my iMac

I have already try Reset SMC and PRAM

I have already try clean install.

i have already try SMCFanControl with terminal to execute command

" sudo /applications/smcfancontrol.app/Contents/resources/smc -k F0Mx -w 2710"

None of this work

imac

Posted on Apr 16, 2015 6:59 PM

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Answer 1

poikkeus1

Level 4

2,454 points

Apr 16, 2015 7:53 PM in response to ahmad_febry

I'm not 100% certain what you need, but it seems your computer fan runs at 4500RPM all the time, while iStat suggests nothing is happening. So you want some software to normalize the fan.

If that's the case, you have two software options that should work. The first is the free SSD Fan Control http://exirion.net/ssdfanctrl/, and the second is the HD Fan Control http://www.macupdate.com/app/mac/39220/hdd-fan-control, which is $35.

I don't know what's causing the fan issue, and nor do I know if the two packages here will fix the problem. (For example, opening the iMac up incorrectly can cause the fans to run incessantly. In that case, I'm not sure if software will help.)

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Answer 2

ahmad_febry Author

Level 1

8 points

Apr 28, 2015 12:27 AM in response to poikkeus1

Thank you for the answer, but it's does not work, the fan still running high, the rpm still show zero

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Answer 3

poikkeus1

Level 4

2,454 points

Apr 28, 2015 10:30 AM in response to ahmad_febry

I'm sorry that didn't work for you.

Download iStat to monitor whether the fans are actually working. http://bjango.com/ios/istat/

As long as you use your computer at minimum heat, there shouldn't be a problem, but the issue comes when you're processing video or gaming. You've done everything right so far...and it might be a good time to visit your Apple Store. For some reason, the fans seem to be inactive

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Answer 4

rkaufmann87

Level 10

140,856 points

Apr 28, 2015 10:39 AM in response to ahmad_febry

I hate to say it but your machine needs to be repaired, it has a hardware problem per your first post. The hardware test indicated:

Result Apple Hardware Test. Alert Message : 4M0T/4/40000002: Main - 0

This indicates there is a hardware problem that needs to be repaired. Apple does not disclose what the codes mean, only an Apple Authorized Service Provider or Apple have that list.

Trying to adjust the fan speed may result in further damage, I recommend not changing the fan speed.

Good luck.

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Answer 5

ahmad_febry Author

Level 1

8 points

Apr 28, 2015 3:23 PM in response to poikkeus1

Thank you for your reply, i know my fan is working because is making loud noise and if i touch my back imac i can feel strong wind from my imac. here from istat

i have already send my imac to Authorized Service Provider on jakarta (i from jambi) 2 month ago, after over 1 month they just reinstall my imac, even i have show the result Apple Hardware Test and chat from CS Apple, for now i can't send my imac because i have a lot work to do due to the service before took so long over one month. and my warranty end of may will expired.

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Answer 6

ahmad_febry Author

Level 1

8 points

Apr 28, 2015 3:24 PM in response to rkaufmann87

yes i know this hardware issue, i have already send my imac to Authorized Service Provider on jakarta (i from jambi) 2 month ago, after over 1 month they just reinstall my imac, even i have show the result Apple Hardware Test and chat from CS Apple, for now i can't send my imac because i have a lot work to do due to the service before took so long over one month. and my warranty on end of may will expired.

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Answer 7

rkaufmann87

Level 10

140,856 points

Apr 28, 2015 3:23 PM in response to ahmad_febry

I understand, good luck and I hope it holds together.

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Answer 8

Apr 29, 2015 12:59 AM in response to ahmad_febry

You can try 'Macs Fan Control'. I also had this problem of unnecessary high fan speed. I installed this software and configured manually 3 fans with respect to 3 different sensors. and now my fans are running well.

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Answer 9

ahmad_febry Author

Level 1

8 points

Apr 29, 2015 1:07 AM in response to diptangshu.sen

Thank you for answer, but i have trying mac fan control, but still can't control the speed, it's show zero rpm, but the fan run very noise and the wind fan very strong, i think it's over 4000 rpm.

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