HELP ME !!!! My MBP fans are stuck on 6000 rpm

I recently cleaned the right fan on mbp because it was making a grinding noise . I then ran smc fan control to make sure that my fans were running well , now everytime i switch on my mbp the fans rev up to 6000 rpm and stay even if no programs are open. My temps are averaging around 35 celcious . I have tried everything , smc reset , pram reset , osx complete reinstalation and also tried to do a firmware restoration . None of these things have worked . Please help me

Have you tried running the Apple Hardware test? I'm wondering if a thermal sensor may have become dislodged or unplugged, as that would also cause the fans to run all out.
Also, have you checked in Activity Monitor to be sure you don't have some hung up process hogging the CPU and causing the fans to run all out? Be sure to select "CPU" on the bottom bar and "All Processes" on the top.
Good luck!

Similar Messages

Fans are running at 6000 rpm at all times.

Hello I´m from Germany an try my best to explain ;-)
in my MacBookPro2,2 Intel Core 2 Duo 2,16 GHz the fans are running all the time without stopping.
When I start the MacBook the fan start to run at maximum.
It is making me crazzy. Please help me. SMC Reset and cleaning the Fans and what ever else I did does not help.
I tried a tool to find out whats up?
Akkulader Nachbarschaft    51°C
Akkumulator    30°C
CPU A Nachbarschaft    39°C
CPU A Temperaturdiode    43°C
CPU Kern 1    40°C
CPU Kern 2    38°C
Grafikprozessor Chip 1    39°C
Hauptkühlblech 1    39°C
Hauptkühlblech 2    34°C
Hauptplatine    40°C
Linke Handauflage    31°C
SMART Festplatte FUJITSU MHW2120BH (NZ0ST6B2A4NB)    35°
Nothing is really hot?
Hope you can help me ;-)

Run the extended version of the Apple Hardware Test that you'll find on one of the DVDs that were shipped with your MBP. I expect AHT will report a SNS error, indicating that one of the temperature sensors in your machine has failed. When a temp sensor fails, the fan or fans usually run at top speed all the time as a precaution, in case the machine is overheating but the bad sensor is failing to report it.

My fans are running at 6000+ RPM all the time - new MBA 1.86

I have a new MBA 1.86. It seems like the fans are constantly running high at 6000-6200rpm while only running a few apps (Firefox, iTunes, VMware).
Is this normal?

i was such a big fan of apple but now using the 1st gen macbook air has begun the pain it works very sluggishly cannot watch videos on youtube it gets freaking hot and then the os becomes so sluggish i have to close the lid and reopen but every 10-15min interval i've to do it.I tried contacting apple did every possible thing but didnt get any solution so have planned to sell it off and buy alienware as it is the best powerful machine,in india no proper support for apple no proper repairing guyz really screwed up this time buying MBA iam **** up now apple better take some measures or discontinue MBA coz everone is complaining abt overheating!!!!!!!!!!!!!!!!!!!!!!!

Macbook Pro fans stuck at 6000 RPM

Hello,
I am using a 2006 MacBook Pro, 2GB RAM, 2 GHz Intel Core Duo with a 500GB HDD that has 450 GB free.
About a month ago the left and right fan started cranking up to 6000 RPM (which is apparently max for this model) upon startup. Most discussions I've read while looking for a solution suggest resetting the SMC, which I have tried a few times to no avail. CPU and RAM usage are normal, nothing taking up tons of processing power on activity monitor and temps are around 35-40 degrees Celsius. I saw a few boards talk about a stuck print job which I checked for as well, but there was nothing. I tried downloading and using the smcFan Control app and setting the preferred fan speed to as low as possible but the app still registers speed at 6000 RPM and they have not slowed down.
Unfortunately, I bought this MBP from a used dealer (had it for a few months before this started), so I do not have the original OS disks to perform a hardware diagnostic. It came with 10.5 on it but I have since upgraded to 10.6.8
I'm not experiencing any problems with operation but the fans at this speed are extremely loud and annoying; is there anything further I can do to try to fix this? I'm a bit new to macs, is there a program that gives you more powerful fan control than the one I downloaded? How much would something like this cost to get fixed by Apple? Thank you in advance for any advice.

You likely have blocked vents inside or a hardware issue, like a failed sensors to trigger the fans at default max warp speed.
If your adapt at opening it up, you might want to take a look at these videos and get yourself a can of air spray + tube and blast out the obstructions out from the inside.
http://eshop.macsales.com/installvideos/

Fans always running at 6000 RPM.

I have had this problem since my friend gave me his old macbook pro. The fans are very loud and running very fast. First I thought dust might be stuck inside but I checked and nothing was there. Nevertheless I cleaned it. When I powered on my macbook it was still very loud so I checked with SMCFanControl and it was still running at 6000 RPM. I have tried resetting PRAM and the SMC without any success. Also software like SMCFanControl and iCyclone won't let me change the speed even though the CPU is at 40C most of the time. I don't really want to take it for repair at the apple store because they will probably charge me a fortune. It is a MacBook Pro Late 2006 model. Thank You.

Same situation here - the only update: it started to happen after I replaced the palmrest, screen assembly and installed SSD Intel X25M drive. First, at startup fans are quiet, and then slowly going to higher speeds. Since I did upgrade everything at the same time I did not catch what was the source of this issue. First I blaimed SSD since it's not getting any warmer (as oppose to standard SATA drive) and that might have confused the Mac's fan control. The other thought was the SSDs have a different SMART reporting method... Well, all kinds of resets (SMC and PRAM) did not help, neither utilities like smcFan Control and others. BTW, smcFan control shows temps from 35C-37C and 5200-5500 RPM. Fans are blowing a cool air, no signs of overheating at all.
Bad temp sensors?
Any thoughts?

Hard Drive fan suddenly running at 6000 rpm

Hi, I have a 2009 20" iMac, 2.66GHz Intel Core Due running 10.5.8. I have iStats Pro and SmcFanControl installed.
Randomly, my HD fan goes from 1099 to 6000. I can fix it by putting my Mac to sleep, wait for 10 seconds, and then proceed, The HD fan speed goes from 6000 down to 1099 and it will stay there. Sometimes this hapens a second or 3rd time. Every time I put the machine to sleep. And every time it "fixes" it. After 3 to 4 times going to sleep, the problem weems to be permanently solved and the "vacuum cleaner" does NOT turn on anymore. Obviously, this is highly annoying and not a solution.
Is there any real solution to this problem? I bought this machine in July 2009, no Apple Care because I have had luck with Apple products in general (my iMac DV from 1999 still runs...). It seems as if my luck has run out.
I scoured the boards but nobody seems to really know what is going on. I read about temp sensors and logic boards. Seems dramatic to me. Is this something I can fix myself?
Has Apple recognized this as a real problem??? Because it IS! I am very disappointed. You do not expect this from a newer machine.
Thanks for your help.

First off smcFanControl is not going to fix the problem, it can only run the fans faster and not slower than the iMac's System Management Controller is telling them to run.
It sounds as if you have either 1 of 3 problems:
1. you need to reset the iMac's SMC.
2. the Hard Drive is actually over heating for some reason.
3. you have a faulty HD temperature sensor or bad connection (wire) between the sensor and logic-board.
I would do the following:
1. disable or uninstall smcFancontrol
2. reset the iMac's System Management Controller
as per > http://support.apple.com/kb/HT3964
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Press and hold the power button for 5 seconds.
4. Release the power button.
5. Attach the computers power cable.
6. Press the power button to turn on the computer.
3. then if and when the HD fan acts up (ramps to 6000rpm) run the extended Apple Hardware Test
as per > http://support.apple.com/kb/HT1509
4. use the iStat Pro widget to check the sensor readings for the Hard Drive and Hard Drive bay when it acts up.
see > http://www.islayer.com/apps/istatpro/
Dennis

Fan buzzing noise at 6000 rpm.. Sound worst when tilted on any axis...

My macbook been overheated since the Snow Leopard upgrade but what really anoy me the most is that the fan make a buzzing sound over 6000 rpm and when I pick up the MBA is tilt in any axis it make a noise like a fly is right next to your ear and it also feel like the fan is loose or somthing. Is that fan sound normal for those who got a macbook pro. Try tilting the laptop a little and does it make a weird sound? I keep thinking is a defective fan or something is loose that relate to the fan.
Does this happen with your guys macbook air? Is this normale of should I bring it in and see if I can get my fan replace.
I can barely hear it at 2000 rpm but at 6000 is really anoying to work with the computer for me...

I would get it check out. It might be the blase hitting or a motor bearing.
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
Macsimum News Associate Editor  Creator of 'Mac611 - Mobile Mac Support'

Mbp fans are coninously at 6000rpm.

hi
after encountering some HD faillures, i installed OS X 10.5 from scratch.
after that my fans spin continously at full speed, have done a smc & pram reset severall times, but that didn't work out well.
now i'm monitoring the temperature and my fans with smc fancontrol, while throttling the fans through terminal.
do you guys(or gals) know of any solution, i have searched the net but i didn't found any answers(other than the terminal thingy..).
my hardware;
Modelnaam: MacBook Pro
Modelaanduiding: MacBookPro3,1
Processornaam: Intel Core 2 Duo
Processorsnelheid: 2.2 GHz
Aantal processors: 1
Totaal aantal cores: 2
L2-cache: 4 MB
Geheugen: 2 GB
Bussnelheid: 800 MHz
Opstart-ROM-versie: MBP31.0070.B07
SMC-versie (systeem): 1.16f11
as you can see, i allready have the latest smc firmware.. is there a way to reinstall the firmware??(i guess there's a little chance that will work, or am i talking nonsense??)
thanks in advance
koen

Hi Baby Boomer,
Here is the information you mentioned in your reply.
Next thing is trying the firmware update thing.. hope it works
After i started this thread, i went to a franchise apple retailer. We don't have an apple store in holland(not that i know of..)
At the store they didn't know what to do, and suggested to call apple. Doing that tomorrow..
What they did mentioned was that it could be a logicboard problem instead(but isn't that what the firmware update is for?)
Guess i go back after the weekend to ask for those tests, which tests do exactly mean? (if calling apple don't bring a solution)
Fabrikant: Sony
Apparaatnaam: ASMB012
Pack Lot Code: 0003
PCB Lot Code: 0000
Firmwareversie: 102a
Hardwarerevisie: 0500
Celrevisie: 0303
Ladingsinformatie:
Resterende lading (mAh): 200
Volledig opgeladen: Nee
Bezig met opladen: Ja
Volledige laadcapaciteit (mAh): 2462
Statusinformatie:
Aantal cycli: 615
Conditie: Poor
Batterij geïnstalleerd: Ja
Ampèrage (mA): 2607
Voltage (mV): 11971
Systeemvoedingsinstellingen:
Netvoeding:
Schakel sluimerstand van systeem in na (minuten): 0
Schakel sluimerstand van schijf in na (minuten): 10
Schakel sluimerstand van beeldscherm in na (minuten): 20
Start automatisch opnieuw op na stroomstoring: Nee
Schakel sluimerstand uit bij wijziging netspanning: Nee
Schakel sluimerstand uit bij openklappen van scherm: Ja
Schakel sluimerstand uit via Wake On LAN: Ja
Tijdens sluimerstand wordt beeldscherm gedimd: Ja
Batterijvoeding:
Schakel sluimerstand van systeem in na (minuten): 15
Schakel sluimerstand van schijf in na (minuten): 10
Schakel sluimerstand van beeldscherm in na (minuten): 5
Schakel sluimerstand uit bij wijziging netspanning: Nee
Schakel sluimerstand uit bij openklappen van scherm: Ja
Tijdens sluimerstand wordt beeldscherm gedimd: Ja
Verminder helderheid: Ja
Hardwareconfiguratie:
UPS geïnstalleerd: Nee
Informatie wisselstroomlader:
Verbonden: Ja
Bezig met opladen: Ja

15" MacBook Pro fan running cold, but fans are constantly at 6200 RPM!

Hi guys, I'm hoping someone here can help me fix my issue with my beloved MBP.
It's running cold (around 33C) and the fan is always running at around 6200 RPM. It starts right when the computer starts up, and continues - even when I only have one or two programs running:
Here's what model and specs I'm running:
I tried, on recommendation from past threads, to reset the SMC. It didn't have any impact.
Can anyone help? Thanks!

Also, here are a few shots of my Activity Monitor:

Why do both fans always run at 6000 RPM

I have a 17" MB Pro which spins both fans at 6k ALL the time (when it's on), even though the machine is not running hot.
They go off properly when it's in sleep mode, but after wakeup or restart the fan speed will start out slow (and inaudible), then slowly increase until after a minute or so both are running at max speed.
CPU heatsink temps are in the 93 - 95 degree (F) range.
I have reset SMC, deleted com.apple.PowerManagement.plist file, same behavior.
Any thoughts on this? The noise is getting to me.......

I have just begun to have the same problem as of last night, also with a 17" MBP. I spent time on the phone with an AppleCare rep, but the fans stopped on their own after a reboot into Windows and then back into Mac OSX. As of right now, they've started again.
As in the case of the first poster, my computer is not running hot, nor is any process taking up a lot of CPU cycles. This is really perturbing me.

Brand new Macbook Pro -Fans on constantly at 6000 rpm. Very Noisy. Broken ?

Just bought a macbook pro today. The fans on it are constantly on ... all of them, spinning at 6000rpm no matter what the machine is doing. It sounds like a hurricane. I have tried to reset the SMC (no effect), update the firmware and EFI (refuses .. saying this update is not required), reset the pram (no effect) and resinstall OSX (no effect). The temp of the machine is only 34 degrees C (no doubt due to the fans being on constantly).
Its like this on battery / AC / and even on better energy saving settings !
Whilst the machine works, it is unusable. It sounds like a vacuum cleaner.
There are utilities out there (smcfancontrol) that let you set the minimum speed for your fans but not the maximum speed... ! Typical. !
Any suggestions... otherwise I will be returning this machine to a John Lewis branch tomorrow and asking for a refund (faulty machine). I suspect the thermo monitor is borked.
??? Thanks for any suggestions

I have exactly the same problem - right down to the last of your words!
I have had discussions with Apple Care but, sadly for me, I will have to have them look at it in my local apple store and I have no idea how long it will take.
All I can say is that the noise is terrible - when you shut it down its like lovely peace and quiet! Imagine me in the library at Uni - I sound like the cleaning person!
Good luck with your return and I will see what happens once I can actually get hold of someone from Apple Store!

Fans stuck at 1600 RPM after 10.6.2 Update

I have a Mac Pro thats been upgraded from dual 2.0 Ghz Dual-Core Xeons to dual 1.86 Ghz Quad-Core Xeons (Xeon E5320 Overclocked to 2.33 Ghz).
I know there are a few other users out there that have done this mod, and I am wondering if any have experience any fan issues after updating to 10.6.2.
After the 10.6.0 install all is fine. Update to 10.6.2 and all fans but the power supply fan are stuck at 1600 rpms. I can move them higher, but not lower than 1600.

Be sure you've removed all of SMC fan control. Use Easy Find - VersionTracker or MacUpdate - to hunt for any remaining components.
If you are still unsuccessful then in addition to resetting the SMC/PMU try resetting the PRAM as well.
You may eventually need to reinstall SMC fan control in order to reset the fan speeds to normal levels then disable fan control and uninstall it.

Fans stuck at 2000 rpm

i received leopard earlier today and installed it, and since then the fans are stuck at 2000 rpm (+/- 5 rpm).
during normal use this is okay, cpu temperatures stay at about 52 C/125 F. but if i start any more processor intensive application (vmware fusion, civ IV, etc.) the temperature rises up sharply but the fans stay stuck at 2000 rpm. when the cpu temperatures reach 80 C/176 F i kill the app because i can't afford to burn my processors.
on 10.4.9 the fans would be running at 6000 rpm at those temperatures...
does anybody know what's going on? i'm feeling a bit panicked and don't dare properly use my mac...

wow! you are a lot braver than i am. i didn't dare let the temperatures go over 80C.
but following your example i decided to test too, and at about 82C the fans started ramping up (though slowly!) allowing the temps to reach over 87C before lowering them again to 80C at about 500 rpm.
it just seems freakily high to me, i hope the apple engineers know what they're doing.
anyway, thanks for testing this for me and solving my problem, i'm more at peace now.

Fans going at 6000 rpm with little cpu usage--computer too hot?

Hi,
I am not sure what normal temperatures are for my computer, but often the fans are running at 6000 rpm when the computer doesn't have all that much going on. When I am trying do anything actually demanding, the fans are running non-stop. I've also noticed that things have just been running rather slowly, with lags in mouseclicks and typing. I am not sure if these are related, or why the computer might be working so hard to complete simple tasks. Here is a picture of iStatPro showing what's going on--CPU is 95% idle and the fans are at 6000 rpm. Does anyone know if the temperatures shown are normal or what I can do to improve the situation?
Thanks!
Laura

It seems the image cannot be enlarged.

MBP fans @ 6000 rmp when charging

The fans of my 2yr old mac have been going nuts lately (high 5000s/6000s rpm) so after looking into it with iStats I was led to change the battery (last one was health @36% w 157 cycles). Things are now great in terms of not having to keep the laptop plugged 24/7 but the fans still accelerate.
Both fans hover at about 6000 rpm when the cpu is plugged and yes, it does get a very hot on the bottom (laptop kept on solid desk surface only). It doesn't matter what I am running or not running on it at that time. If not plugged- mid 3500s. As soon as I plug it in- bam 6000 rpms, when I unplug back down to the 3000s rpm... the number of programs is irrelevant, and according to the application monitor nothing is "stealing" power so to speak.
I use the laptop a lot and have no other problems with it, but I do need to plug it - I am on it at about 8 hrs a day easily and with a new schedule on the way I plan on being on it even longer. Runs smoothly. I am just worried because I read somewhere that if it fans get over 6500rmp it supposedly would crash. The noise is not pleasant, I am used to my silent mac, but I'll buy earplugs if I have to so long as I don't have to part with it.
What is going? Please, please help.
iStat temps:
HD: 40
CPU: 63
Airport card 57
Enclosure base 38
CPU Diode 61
CPU headsink 63
Headsink A 50
Headsink B 43
Fans
Left fan 6003 rpm
Right Fan 5994 rpm
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 2 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP31.0070.B07
SMC Version (system): 1.16f11
Battery Information:
Model Information:
Serial Number: SMP-ASMB012-3b90-284
Manufacturer: SMP
Device name: ASMB012
Pack Lot Code: 0002
PCB Lot Code: 0000
Firmware Version: 0110
Hardware Revision: 0500
Cell Revision: 0200
Charge Information:
Charge remaining (mAh): 1988
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 5373
Health Information:
Cycle count: 2
Condition: Good
Battery Installed: Yes
Amperage (mA): 2946
Voltage (mV): 11962
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 180
Disk Sleep Timer (Minutes): 180
Display Sleep Timer (Minutes): 180
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: No
Battery Power:
System Sleep Timer (Minutes): 3
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 3
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
Charging: Yes

Start with both fans at 6000 rpm
1) Resetting the System Management Controller (SMC)
- rmp down to 4000
2) Activity monitor. Select All processes- Quit PrintJobMan
- rpm down to 2000
VICTORY!

HELP ME !!!! My MBP fans are stuck on 6000 rpm

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