Macbook Pro Fans at high speed

My macbook pro has been running at high speeds, non-stop, for a few days now. I tried resetting the SMC, but that did not work. Any suggestions?
Thanks!

Reset the SMC
Intel-based Macs: Resetting the System Management Controller (SMC)
Repair the HD via disk utility
This is the Mac Pro desktop forum. I requested your post be moved to the MacBook Pro laptop forum.

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Macbook Pro fans run max speed constantly.

I have one of the pre-aluminum body Macbook Pros, a 2.2 Intel Core 2 Duo with the 15" monitor. For the past few months, both my fans have been running full blast (6000+ rpms) from boot to shutdown. I've tried reseting the SMC, PRAM, and even the misleading "Repair Drive Permissions," but my fans stay full blast. Using Activity Monitor and the Terminal command to check CPU usage, When I have Firefox open everything runs with about a 89%-90% CPU idle. No strange printer problems sucking up my CPU, not watching youtube videos, just high fan speed. I'm hoping it's not a logic board issue. Any suggestions?

Hey, just dealt with the same problem...I think it is finally solved!
Online people offered all sorts of suggestions about the activity monitor, printer queues, etc. Nothing worked. Then I remembered that when I updated to Snow Leopard, it warned me that ONE OF MY APPLICATIONS WAS INCOMPATIBLE.
I searched everywhere (e.g. application support, preferences) and deleted EVERY SINGLE SHRED of that application (Viruscan from McAfee), even the plist files. Finally, no more fan running hot for no good reason!
Hope you can remember which of your apps was incompatible, if not, you may want to delete non-essential applications you have downloaded. Good luck!

Macbook Pro fans running high from startup

Hi, I'm new to this forum, but I've been looking around quite a bit, both here and on other forums to find a solution to this problem, unsuccessfully.
I have a Macbook Pro, 15", 2007 model, Intel Processor. For a while now, the fans on the computer have speeded up to 6000 RPM almost immediately from bootup. Before today, the computer also overheated quite badly, topping at 96 degrees Celsius as monitored by istatmenus. Today I decided to open the computer (warranty already expired) and clean out dust and whatever else might be clogging up the fans. Using a high pressure air bottle I got rid of a few dustbunnies, no copious amounts, but something. After reboot, tthe temperature seems under control (CPU at 44 degrees celsius), but the fans keep running high.
I've tried out all the recommendations I found in other threads:
Reset SMC a few times
Reset PMU
Reset PRAM
There are no activities using up processor power, usage at the time of writing is about 20% per core with Google Chrome, Mail, Skype and some other stuff running.
I've uninstalled both SMC Fan Control and Fan Control apps completely according to instructions (removing library files etc.)
I've installed Temperature Monitor to see if there's any problem with the sensors. All the sensors seem to be working fine, except perhaps one: SMART Disk Hitachi HTS542525K9SA00 which is not giving a reading in Temperature Monitor.
However, iStat Menus gets a reading from the Hitachi Disk, saying it's currently at 35 Degrees Celsius. Thus, it seems as though the sensors are all online.
I haven't been able to do an Apple Hardware test since I haven't got the installation disc at home.
So... I'm basically out of ideas, and getting more than a bit frustrated since I'm using the computer for audio recording, which isn't much fun with fans blasting away at noisy 6000 RPM.
Does anyone have any idea what the problem might be and how I might be able to solve it?
Many thanks in advance

Yep, you could say that.
I had one of those screws unscrewed. Sure, by itself ))
but tightening it fixed the problem in my case.
Normally "nice guys" are lazy so it might be just some small unnoticeable thing.
If you were not nice with the "nice guys" you could expect more elaborate joke ))
If it is the case, If I were you, I would check termo pads, size of the screws, then tighten all up and that will be it.
For the size of the screws as for anything else you should try google.com or iFix.it
You don't really need to be not nice to be screwed )
Last joke of the "nice guys" here was replacing the trackpad connector. They told me that my MacBook is not booting and it is not the problem I've brought it for. Fortunately I have 4 Macs of the same model so it was quite easy to figure ))
Anyway, be safe, be nice, be a little bit paranoid in a sense of making connection of what happened in what circumstances.
Good luck.

MacBook Pro fans won't speed up

I have a MacBook Pro (Early 2008) 2.6Ghz with a 200GB drive and 4GB RAM.
The problem is that i.e. I'm creating a movie in iMovie, so the computer does a heavy task, the CPU works at lets say 75% and according to iStatPro, it's temperature reaches 80-82 Cº, but the fans won't go over 2500 rpm! Is that normal? Because I'm pretty sure that when I first got the machine almost 2 years ago the fans would go much faster on occasions...
I noticed the problem while I was still in Leopard, and now that I upgraded to Snow Leopard it continues...
I tried the SMC reset but nothing happened. Should I be worried? I always use a fan pad underneath my MacBook Pro and I still get these temperatures! What should I do?

Hi spyros_1,
I find that the fans are "reactive" rather "proactive" in cooling the machine. With that being said, I don't really hear my fans fire up until the temperature on the machine begins to reach the low 70s (Celsius). However at 80 degrees, the fans are usually humming closer to 6000rpm than they are to 2500rpm.
The other thing, I've noticed a few separate instances where iStat Pro does not report the correct reading. Over the weekend, my fans were very audible and iStat Pro reported that they were at 2000rpm (idle).
It might be worth bringing the machine in for diagnostic, just for peace of mine.

MacBook Pro fans running high after 40C terperature

Hello, my MacBook Pro Late 2007 (3.1) when the tempetura exceeds 40C the fans go to 6000rpm and make lot noise.
* I've reseted the PRAM and SMC
* installed types of fan control, not work
* cleaned the fans
* Usage of the CPU is normal (on activity monitor)
Temperature CPU x RPM
Temp. RMP
30C ------- 3000Rpm
35C-------- 4700Rpm
40C ------- 6000Rpm
Does anyone have any idea what the problem might be and how I might be able to solve it?
Many thanks in advance

You can't fix it if it's faulty. To determine whether that's the case, run the Apple Hardware Test, and if it reports any errors, take the machine in for service.

Macbook Pro Fan Speed

Hi. I was having some trouble with my temperature of my MBP, but I somewhat solved it using Temperature Monitor and smcFanControl. I turned the fanspeed to Higher RPM in the smcfancontrol menu, and my temperatures are down from ~95 celcius to ~65 celcius (when playing Minecraft / other extensive tasks.)
Now, I would like to bring them down more (should I?) because I feel 65 c - 70 c is still really high...
So, my only question is: In smcFanControl, the Higher RPM setting is 4000 RPM, should I change that to 5000 RPM? I know it would help, but, can the fans handle that?
Thanks in advance
Could 70c (max) shorten it's lifespan?
(sorry I just am extremely extremely paranoid)

I am seeing a lot of negative talk about third-party software to control fans:
Istat menu 5 is good.
It conforms to apple's SMC; this means that it will never allow the fans to go slower than what SMC is asking, thus your computer will be safe using this software.
In contrast I have a Macbook Pro fan controller for bootcamping Windows 7 called MacFanx64.exe (64 bit) that requires you to understand command prompt.
It's nothing difficult, you just need to make sure that you enter parameters properly.
The only way I see one of these damaging any hardware components would be if you accidently told the fan to spin faster than the max speed.
I would agree that for OS X you aren't going to really need this because the engineering on the SMC isn't terrible, but if you happen to have SMC screw up like it sounds like you had, there's no way to know it unless you feel it getting really hot like that which I'm sure isn't great for your MBP.
Therefore having a monitor system is helpful because you can see the temperatures constantly.
Now for Windows 7 bootcamp it's a whole different story.
There is something wrong with the drivers that control SMC for bootcamp because the computer will get hot fast even in idle.
I was marking temperatures around 60-70 C just in idle - the fans still stay at 2000 rpm.
If someone finds something better than MacFan for Windows 7 bootcamp let me know.
Moral of the story, if you pick a good third-party application you're not going to harm your computer.
Think of it like a second line of defense.
Last but not least, if you're still having this problem do an SMC reset.
Apple has instructions on how to do it, just note that you need to pay attention to whether your MBP has a removable battery or not when doing SMC reset.
Cheers

Macbook Pro Fan Trouble.

I recently sent my Macbook Pro Fans to get replaced. The problem was that my fans started to work even when the computer didn't need it. They would accelerate up to 6000 RPM and I would only be running Safari and iChat. Then the computer's fans would start to slow down and then speed back up. I sent in the computer for repair to get the fans looked at and they replaced them. Well the problem is still persisting. Should I call them about it again or is this normal? I only ask because I don't know if it is or not.

I have the same trouble with mine. I took it in for repair as it had a logic board issue, and they gave it back to me yesterday, but when I started using it, the fans ramped up to 6000rpm constantly for the entire day.
This morning I installed Fan Control to see if that would help, but it appears that Fan Control is not actually doing anything. The fans have been stuck around 4400 rpm at 35 degrees celsius even though I told Fan Control not to run at anything above 2000rpm until it gets to 40 degrees.
Is there a mysterious apple setting that says don't go above 35 degrees, or if you do ramp up the fan speed to max until it gets below it again, because according to Fan Control that is what is happening. It is not logical to be wanting to keep a powerful modern laptop at that temperature when the fan noise is so high. 45 degrees would be a fine operating temperature.
BTW, I checked the Hardware test and there is nothing to report from it.

What is causing my Macbook Pro fan to run constantly?

Hello. Recently my Macbook Pro fan has begun to run constantly at high power. I've checked the activity monitor and even when there is little RAM or CPU this occurs. I am wondering if the issue is the hard drive because the I am seeing spikes in disk activity at random times even when I am not using the hard drive. The computer is actually heating up when the fans are on at full power, so this also leads me to believe it could be the hard drive. I have already tried resetting the system management controller. Any other ideas? What should I do about this?
Thanks a lot.

Try raising the the the machine with wood, or , plastic botttle caps t get it up an inch or so, that way there is more air flow under the MBP to help with the air flow to help keep the cooling more een. Hope this helps.

Do you think my macbook pro fan could be broken?

Earlier today when I opened my laptop the screen was black and it appeared to be shut down. I hit the restart button and when the screen came up it said that I had "shut off my laptop due to a problem", though I did not manually shut it down. It was working 100% fine yesterday, so I'm not sure what could have happened to it. I know it wasn't my battery, because I had a full charge prior to shutting it and upon restart I still had a reasonable charge. I was more or less ignoring my laptop's unusual pop-up until I noticed that my computer was feeling much hotter than normal, so I checked iStat pro to look at temperatures. The CPU temp was around 82 degrees or so when I checked, while I was playing a videogame, which doesn't seem too high but the area around my keyboard felt much hotter to the touch than normal. What is really concerning me is that iStat says my fan is running at 0 rpm, even while I was playing a graphic-intensive game. The CPU is down to 65 degrees since I have stopped playing the game, however I have heard that your laptop will shut itself off to prevent overheating, and I'm wondering if this is what happened to my laptop sometime between yesterday and today. Does it sound like my fan could be broken? There isn't an apple store very close to me and my warranty just ended so I'd rather work it out myself if possible. I don't believe it is a faulty sensor either as iStat gave me temperature readings for everything. If you think my fan is broken, do you have any advice or know how much it would cost to fix/replace?

Good detective work.
I don't believe that 80ºC is extreme for occasional use, but over extended periods of time, this can stress your machine. I beleve you should visit your local Apple Store. They can determine if the fan is broken.
In the meantime, I could avoid:
- CPU-intensive activities like 3D gaming for extended periods of time.
- Using your notebook on your lap. That can raise its temperature thirty or more degrees.
- Dust or dirt can choke the fans, increasing temperatures and even the risk of fire.
Replacement of a fan is not very expensive, if it comes to that. You can also do it yourself:
http://clarebayley.com/2011/10/how-to-replace-a-macbook-pro-fan/

HT202179 MacBook Pro Fan is very loud overnight. How are they replaced?

MacBook Pro Fan just started to make a lot of noise.This is a MacBook Pro 15 inch 2.4/2.2GHz purchased June 2007. Is this something that most people can replace or does Apple need to fix it or is it time to get a new one base on age and potential repair cost?

Your Mac uses measured temperatures to determine fan speed in a feedback loop.
Racing fans are an indication that your Mac is overheating, or a temperature sensor is not working properly. Replacing the fan will not fix the problem.
Your appointment for an evaluation at the genius Bar of an Apple store is free, in warranty or out. There is no obligation to have them do any work for a fee, but if you choose to, charges are generally flat rate for guaranteed repair, no surprises.
If you recently replaced components, such a RAM DIMMs, with parts that do not have Apple-approved temperature sensors, that can also cause such problems.

Macbook pro fan running slow

macbook pro fan is running slow and hot. it fluctuates between 212 and 375 rpms. heat rises up to 104c. do i need to replace the fan?

Before I suggest advice, I urge you to keep your machine under 160F at all times. I don't want to sound like an alarmist, but you can seriously damage your machine with that kind of use. Some solders melt at 225F, weaken at 190F.
You may have to replace the fan - or you may need to clean the inside of your machine and fan. It's hard to tell without inspecting your machine.
Or you may find that you need to get a different browser, and become more aware of temperature; laptop machines are much more sensitive to termperature issues than desktop Macs. Some day, you'll thank me for that advice.

I just brought my macbook pro yesterday my downloading speed is very less what do i do, i just brought my macbook pro yesterday my downloading speed is very less what do i do

i just brought my macbook pro yesterday my downloading speed is very less what do i do, i just brought my macbook pro yesterday my downloading speed is very less what do i do

salmu --
I'm on the East Coast, USA. Here are my stats. I think they're more like what you are looking for.
1. Do you have any internet security or firewall app on there???
2. Have you gone to your Network Preferences, and clicked on "Assist Me?" It could be a setting is messed up.
3. How much RAM is in your MBP?
4. If you are near an Apple Store, I would take it in and have them troubleshoot it for you.

Mainstage 2.1 makes my Macbook Pro fans run full bore.

Upgraded to V. 2.1 and Snow Leopard. Now my Macbook Pro fan kicks in at full blast whenever I play any patches or run backing tracks. Cpu hit looks low and memory usage is average. This never happened before. Any ideas as to what's happening?

My MBP fans have always run at full capacity when using MS 1, 2 or 2.1. They start out running normally but then start to rev up after a couple of minutes. You could try running some fan control software to manually adjust your fan thresholds but ultimately, does it really matter if the fans are running hard? Seems to me that they're running hard because they need to....MS is still very hard on system resources even if the meters say otherwise. It's the only app I run that causes the fans to run flat-out.

Will my 2009 macbook pro support a higher operating system than OS 10.5

Will my 2009 macbook pro support a higher operating system than OS 10.5.8?

For any upgrades, you will need to purchase this Snow Leopard disk from the Apple online store:
http://store.apple.com/us/product/MC573Z/A/mac-os-x-106-snow-leopard
After installing Snow Leopard (10.6.3) you should perform a software update and install 10,6.8. That will permit the installation of either Lion, Mt. Lion or Mavericks, depending upon your needs and/or preferences.
Ciao.

My MacBook Pro fan runs while sleeping

My MacBook Pro fan runs constantly, even while sleeping.
The problem started about 2-3 months ago, but was pretty rare. When I noticed the problem, I would restart the computer and it would stop for 1-2 weeks. More recently it has become more constant, and now it always has the fan running when it's sleeping.
Any ideas on what I should do? Thanks!

Mine too. If you're worried you might like to try a laptop cooler like one of these:
http://www.amazon.co.uk/s/ref=sr_kk_2?rh=i%3Aaps%2Ck%3Alaptop+cooling+pad&keywor ds=laptop+cooling+pad&ie=UTF8&qid=1344763538
Not sure how well they'd work on a Macbook as there aren't any vents on the underside but it couldn't hurt and they're quite cheep.

Macbook Pro Fans at high speed

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