Fan runs loud and continuously

Hi- The fan on my Macbook 2.1 Intel Core 2 Duo 2.16 GHz runs continuously and loudly from about 3 minutes after booting up. Activity monitor shows nothing unusual, only Firefox and Activity Monitor using any CPU (very small percentages). It has been a noisy fan for awhile, but used to come on only after prolonged use. Any suggestions will be welcomed. Thanks -Howard

If you have not already done so....reset the SMC....
support.apple.com/kb/HT3964?viewlocale=en_US
....you may also want to run the Apple Hardware Test to see a temperature sensor has failed....
support.apple.com/kb/ht1509

Similar Messages

Finder makes fan run loudly and continuously.

I've had my MacBook for only a few months now and I am having a problem with the fan. It starts running loudly when I am doing simple tasks, such as viewing a webpage which contains no flash, video, or similar content. The fan does not stop running unless I put my computer to sleep or restart it. I have found that by relaunching the Finder, the fan almost instantly slows down back to its normal state. This concerns me as this has been occuring more frequently over the past two weeks. Is there some sort of fix to this instead of having to relaunch the Finder every time?

Yes you can continue to play games but heat is the bane of electronics and in time there will be a cost. When is hard to say, but I can put it this way, a fan running constantly at high speed is more likely to fail sooner than one at a slower speed.
Ciao.

Will running games that make the fan run loudly and the computer heat up damage my machine?

On my Macbook Air running Yosemite 10.10.3, with 4 GB RAM, 251 GB storage (170 GB free), a 1.6 GHz Intel Core i5 processor, and Intel HD 6000 1536 MB graphics card, when I play games such as Batman Arkham City, I experience very smooth gameplay with high fps. The only thing that worries me is when I play, the laptop heats up very much and the fan runs pretty loudly. Even with old, less intensive games like GTA SA, the computer gets pretty hot and the fan runs loudly. Is this damaging the computer, or can I continue to play these games?
Thanks.

Yes you can continue to play games but heat is the bane of electronics and in time there will be a cost. When is hard to say, but I can put it this way, a fan running constantly at high speed is more likely to fail sooner than one at a slower speed.
Ciao.

NEW HARD DRIVE - FANS RUNNING LOUD AND RED LIGHT

I've just installed another hard drive in the lower bay of my G5 1.8. I took one drive out and inserted the new one, leaving the original hard disk with the operating system on where it was.
As soon as I pressed the "on" button the machine powered up but with the fans on very loud and a red light on inside the machine.
The G5 starts up fine. The new hard drive is recognised.
Any ideas what's gone wrong as it wasn't behaving like this before?
Thanks in anticipation

Hi gravenors, and a Warm Welcome to Apple Discussions and the Power Mac G5 Forum!
You could try checking that the clear plastic air deflector has been replaced correctly.
If it seems to be in place, but the fan and red LED are still on, please post again - as there are further things to try.

Fan runs loudly and upgrades

So mac isn't really famous for having upgradeable products, but is there anyway or anywhere where I can change out hardware on my imac? I have a 20" G5 and I use it for Photoshop and Z brush and it works fine for that, but if I play a game the game play tends to jump. I'm not great with computers and I'm new to mac so I don't know if or where I can change the graphics or video card.
Also, the fan seems to run really loud at times? Does is seem this way with anyones else? It's done this before and I had to get the power supply changed... twice.

See if the following Knowledge Base Article is of any help:
http://docs.info.apple.com/article.html?artnum=301733 iMac G5: How to Reset the SMU (iMac G5, the iMac G5 (Ambient Light Sensor), and the iMac G5 (iSight)).
How much RAM do you have installed? Are you maxed out?
Do you repair permissions after playing games?
I play a lot games myself & never had the problem you mentioned.
Which model/generation iMac do you have?
http://docs.info.apple.com/article.html?artnum=301724-en How to identify your iMac
http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh355.html Getting information about your computer

Mac mini Intel Core Duo fan very loud and runs at high speed all the time.

I purchased an "Open box" Mac mini Intel Core Duo, 1.66Ghz, 2G ram, 80G HD and SD a few days ago from Fry's.
It runs beautifully except the fan is very loud compared to any Mac my family has ever had. It is so loud that we were thinking of putting it under the desk.
The fan runs constantly, and I mean all the time, at a high speed. You can really feel the air coming out the exhaust vents. The case is always cool to the touch as is the exhaust air.
My aunt bought a similar Mac mini (But only 512Mb ram) the same day. Her's is very quiet. The case feels just slightly warm, not unlike other Mac mini's I've seen.
Should my Mac mini's fan be running this way?
Thanks,
llulua
BTW: The "open box" was sealed with a Fry's label and it said that this had a new warranty. Yet, checking the serial number, it said that it had about 260 days left. I guess Fry's is backing it?
Also, someone told me that perhaps the main wire from the fan to the logic board is disconnected.
eMac 1Ghz, iBook 500 dual usb, Mac mini 1.66Ghz Intel Core Duo 2g ram Mac OS X (10.4.8)
eMac 1Ghz, iBook 500 dual usb, Mac mini 1.66Ghz Intel Core Duo 2g ram Mac OS X (10.4.8)

Since you have 2 gigs of memory, my thoughts are that when the party (Fry's or the origianl purchaser) upgraded the memory, they neglected to reattach the wire at the front of the Mini under the IR receptor at the right front corner that regulates the fan speed. This wire must be unattached in order to upgrade the memory, and is probably why the original person brought it back, because of the fan noise resulting from failing to reattach the wire. If that wire is left unattached, the fan runs continually at high speed to protect the CPU and system in general. If you do not want to use a putty knife to open the Mini, take it back to Fry's and ask someone who is Mac savvy to open it and reattach the small plastic receptacle at the end of the wire into its socket at the right front of the machine. When I go to Fry's, I am always concerned because the employees allow people to pry keys off of the Apple notebooks, so don't expect that their employees to know or care about anything Mac.
Al PB 12" 1.5 Mac OS X (10.4.5)

XServe fans running fast and loud

Good morning
I have searched the information base and tried a few suggestions without success. Hoping for another solution here.
I have an Intel based XServe (2008) (OS 10.6.8) whose fans are running faster (and therefore louder) than they have previously. This follows on the heels of a power outage (two of them actually) here at school, though the server is behind a UPS. The system identifier light is also blinking in a particular pattern - 4 flashes and a pause repeating.
The server is up and running, teachers are connecting to it just fine, the RAID is intact and online, the drives all look good according to Disk Utility. So, functionally, everything looks OK - the fans are just running faster and louder than before - noticibly louder than the other Intel XServe in the rack. The server is at the top of the enclosed rack with a space below it as it has been for the last 4 years.
This summer I took all the XServes out of the rack, opened them up, and blew the dust out of them (including a moth - truly a bug in the system), so the all the airways are clean and clear.
I have tried the suggestions I could find on this forum:
     restarted a bunch of times
     shut down and disconnect everything (including power) for a period of time
     reset the PMU/SMC or whatever it is called doing the front panel buttons with the blue lights on the lower row
     reset the PMU/SMC or whatever it is called by holding down the power button while disconnected from power
I have installed iStat Pro and the temperatures are averaging around mid- to upper- 30°C and the fans are running around 3000 RPM . The temperatures aren't signifcantly different that the other XServe, but the fans are running about twice the speed.
I had to reformat the RAID earlier this weekend and copy over the data files from backup and reassign permissions, but the server was running quietly after that was all finished. It seems to be post-powerbump that the fans became noisy.
Sorry for the long post, but I tried to include all the pertinent information. I would have tossed in photos and videos if I could have!
Any suggestions would be appreciated.
TIA
Greg

Did a little more searching about setting up LOM on the XServe and I think I have it figured out now.
I assigned a unique (different) IP address to Network 1 in the LOM dialogue box in Configure Server menu of Server Monitor since I only have Ethernet 1 enabled and linked to a switch using a unique (different) IP address for network traffic between the XServe and my clients.
I can now see (via Server Monitor remotely) that I have a dead blower in my fan array which, upon closer inspection, is also evident in the iStatPro display (one fan running at 18 RPM). Hence the blinking system identifier light and the other fans running faster and harder (and noisier).
Oddly enough, I have a replacement fan array in a box of XServe spare parts. I now have a weekend task.
Thanks for all the information to be found and the people participating in this forum. Love it.
Greg

Apple macbook won't boot up and only fans running loud

Hi,
I am having a big problem in my laptop, it's not display anything, and when i press on power button only fans running aloud, and the charger, battery working!
please help me!

I live in Palestine
Unfortunately, we do not have an agent or a local Apple store.
do you help me identify the problem exactly?
thanks

Mac Mini fan running loudly after Safari upgrade

Mac Mini 2GHz is around 2 months old. All been fine until yesterday. When running Safari (it seems) and not necessarily heavy usage fan starts runningvery loudly. In the previous 2 months NEVER heard the fan or at least it's been very quiet, so am quite concerned. It appears that this has coincided with updating to the very latest Safari release 3.1.1.
Anyone else having similar problem and/or advice?
thanks
D

The new Safari release supposedly has some issues with Flash media files and with Windows Media files -- and will require updates of the helper programs that display those formats.
Does the fan run loudly when you visit sites with such files? Or does it also run loudly if all you visit is sites with no video files on them?

Is it bad to have the fan running loud all the time

the fan on my macbook runs loud and long at times. is this bad for the machine?

Is it possible to have 2 threads running at the same
time at different times eg 1 repeats every 20
miliseconds and the other 40 for example. Yes.
http://java.sun.com/docs/books/tutorial/essential/concurrency/index.html

Macbook Pro fan running constantly and CPU running slow

So, I have a Macbook Pro 2010 2.3 i7 that has started running really slow and the fan is running constantly.
In activity monitor it shows a kernel_task running constantly at around or above 200%.
I have tried all the regular tasks. PRam reset, SMC reset and nothing seems to fix it.
I have also tried a system reinstall to no avail.
Maybe I'm on the wrong track, but from what I have read, the kernel_task might be trying to slow my CPU down because it thinks it is being overworked?
Maybe the fans are also being activated because it thinks the computer is too hot?
Anyway, if anyone has any idea as to what I can do to figure out what is going on, let me know. Thanks

Here is the EtreCheck results:
Problem description:
fans running constantly and CPU slowing down
EtreCheck version: 2.2 (132)
Report generated 4/28/15 7:42 AM
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
The following internal tasks failed to complete:
/usr/sbin/system_profiler -xml SPFontsDataType
Hardware Information: ℹ️
    MacBook Pro (15-inch, Mid 2010) (Technical Specifications)
    MacBook Pro - model: MacBookPro6,2
    1 2.66 GHz Intel Core i7 CPU: 2-core
    8 GB RAM
        BANK 0/DIMM0
            4 GB DDR3 1067 MHz ok
        BANK 1/DIMM0
            4 GB DDR3 1067 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
    Battery: Health = Normal - Cycle count = 141 - SN = W0020PTD7BWZA
Video Information: ℹ️
    Intel HD Graphics - VRAM: 288 MB
    NVIDIA GeForce GT 330M - VRAM: 512 MB
        Color LCD 1440 x 900
System Software: ℹ️
    OS X 10.8.5 (12F45) - Time since boot: 0:39:23
Disk Information: ℹ️
    TOSHIBA MK5065GSXF disk0 : (500.11 GB)
        disk0s1 (disk0s1) <not mounted> : 210 MB
        Macintosh HD (disk0s2) / : 499.25 GB (73.74 GB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
    MATSHITADVD-R   UJ-898
USB Information: ℹ️
    Apple Internal Memory Card Reader
    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Computer, Inc. IR Receiver
Gatekeeper: ℹ️
    Anywhere
Kernel Extensions: ℹ️
        /Applications/KeyRemap4MacBook.app
    [loaded]    org.pqrs.driver.KeyRemap4MacBook (8.4.0 - SDK 10.8) [Click for support]
        /Applications/Roxio Toast 6 Titanium/Toast 6 Titanium.app
    [not loaded]    com.roxio.TDIXController (1.3) [Click for support]
        /System/Library/Extensions
    [not loaded]    com.IKMultimedia.driver.StompIO1 (1.0.0) [Click for support]
    [not loaded]    com.avid.usb.mbox.driver (1.0.18) [Click for support]
    [not loaded]    com.digidesign.fwfamily.driver (9.0f4) [Click for support]
    [loaded]    com.digidesign.iokit.DigiDal (10.3.4f181 - SDK 10.6) [Click for support]
    [not loaded]    com.digidesign.usb.elevenrack.driver (1.0.1) [Click for support]
    [not loaded]    com.ikmultimedia.driver.StealthPedal (1.0.0) [Click for support]
    [not loaded]    com.paceap.kext.pacesupport.master (5.9 - SDK 10.6) [Click for support]
    [not loaded]    jp.co.roland.RDUSB0138Dev (1.0.0 - SDK 10.6) [Click for support]
        /System/Library/Extensions/PACESupportFamily.kext/Contents/PlugIns
    [not loaded]    com.paceap.kext.pacesupport.leopard (5.9 - SDK 10.4) [Click for support]
    [not loaded]    com.paceap.kext.pacesupport.panther (5.9 - SDK 10.-1) [Click for support]
    [loaded]    com.paceap.kext.pacesupport.snowleopard (5.9 - SDK 10.6) [Click for support]
    [not loaded]    com.paceap.kext.pacesupport.tiger (5.9 - SDK 10.4) [Click for support]
Startup Items: ℹ️
    DigidesignLoader: Path: /Library/StartupItems/DigidesignLoader
    RDUSB0138Startup: Path: /Library/StartupItems/RDUSB0138Startup
    Startup items are obsolete in OS X Yosemite
Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [running]    com.avid.mbox.helper.plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [unknown]    com.oracle.java.Java-Updater.plist [Click for support]
    [loaded]    org.pqrs.KeyRemap4MacBook.server.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [loaded]    com.adobe.SwitchBoard.plist [Click for support]
    [running]    com.digidesign.elevenrack.helper.plist [Click for support]
    [running]    com.digidesign.fwfamily.heler.plist [Click for support]
    [loaded]    com.google.keystone.daemon.plist [Click for support]
    [unknown]    com.oracle.java.Helper-Tool.plist [Click for support]
    [loaded]    com.oracle.java.JavaUpdateHelper.plist [Click for support]
    [running]    com.paceap.eden.licensed.plist [Click for support]
    [loaded]    org.pqrs.KeyRemap4MacBook.load.plist [Click for support]
    [loaded]    PACESupport.plist [Click for support]
User Login Items: ℹ️
    Dropbox    Application (/Applications/Dropbox.app)
    apple-scc-20150427-140055    UNKNOWN (missing value)
Internet Plug-ins: ℹ️
    o1dbrowserplugin: Version: 5.41.0.0 - SDK 10.8 [Click for support]
    AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7 [Click for support]
    Flip4Mac WMV Plugin: Version: 2.3.8.1 [Click for support]
    iLokClientHelper: Version: 3.5 - SDK 10.5 [Click for support]
    Silverlight: Version: 4.0.60831.0 [Click for support]
    FlashPlayer-10.6: Version: 17.0.0.169 - SDK 10.6 [Click for support]
    Flash Player: Version: 17.0.0.169 - SDK 10.6 [Click for support]
    QuickTime Plugin: Version: 7.7.1
    googletalkbrowserplugin: Version: 5.41.0.0 - SDK 10.8 [Click for support]
    iPhotoPhotocast: Version: 7.0 - SDK 10.8
    AdobePDFViewer: Version: 10.1.1 [Click for support]
    JavaAppletPlugin: Version: 14.6.0 - SDK 10.8 Check version
Audio Plug-ins: ℹ️
    Avid CoreAudio: Version: 10.3.4.181 - SDK 10.6 [Click for support]
3rd Party Preference Panes: ℹ️
    Digidesign Eleven Rack [Click for support]
    Flash Player [Click for support]
    Flip4Mac WMV [Click for support]
    Mbox [Click for support]
    RC-300 [Click for support]
Time Machine: ℹ️
    Mobile backups: ON
    Auto backup: YES
    Volumes being backed up:
        Macintosh HD: Disk size: 499.25 GB Disk used: 425.51 GB
    Destinations:
        Shupester [Network]
        Total size: 3.00 TB
        Total number of backups: 66
        Oldest backup: 2013-06-17 21:18:22 +0000
        Last backup: 2015-03-19 06:26:07 +0000
        Size of backup disk: Excellent
            Backup size 3.00 TB > (Disk size 499.25 GB X 3)
    /sbin excluded from backup!
    /usr excluded from backup!
    /System excluded from backup!
    /bin excluded from backup!
    /private excluded from backup!
    /Library excluded from backup!
    /Applications excluded from backup!
Top Processes by CPU: ℹ️
        31%    mtmd
        19%    Safari
         8%    Finder
         6%    mds
         4%    Dropbox
Top Processes by Memory: ℹ️
    180 MB    Mail
    172 MB    mds
    139 MB    Safari
    131 MB    WebProcess
    106 MB    Pages
Virtual Memory Information: ℹ️
    4.72 GB    Free RAM
    3.28 GB    Used RAM
    0 B    Swap Used
Diagnostics Information: ℹ️
    Apr 28, 2015, 06:53:27 AM    Self test - passed
    Apr 27, 2015, 11:34:56 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/Pro Tools_2015-04-27-113456_[redacted].crash
    Apr 27, 2015, 11:34:23 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/Pro Tools_2015-04-27-113423_[redacted].crash

My fan makes loud and very strange noises.

Hi again,
My fan makes loud and very strange noises. Is there any cure for that?
Thank you!
Markus

Hmm... that is strange. There are a couple reasons that I can think of.
First, go to System Preferences -> Energy Saver -> Processor Performance. See what its set to. If it is currently set to Highest, your fan could be going more often. Turn it down to Reduced or Automatic. Note if there is any difference.
Secondly, are you all up to date on software updates? The last step was to see if it was a software issue. If it isn't, then you probably have a defective fan. AppleCare?
Now, you would open your PowerBook. Look in the Apple docs (Support - Manuals) to find how to do it for yourself, or take it to a shop or Apple Store and have them do it. Safest option.
Look at your fan. Has it come free of the anchor and is hitting against the wall or fan surround?
Lastly, try keeping the PowerBook in a open, ventilated area. The fan will power up less if the computer stays cooler. For a possibly irritating but possibly helpful option, purchase a product that lifts the PowerBook off your lap or desk. I think Rain Design makes a good one.
Good luck!

15" MacBook Pro runs hot, fan is loud, and incredibly low battery life

My 15" MBP was bought in March or April (can't remember) from Singapore Apple Store. Here are the stats:
MacBook Pro 15-Inch, Late 2011
Memory 8 GB 12222 MHz DDR3
Software Mac OS X Lion 10.7.5 (11G63)
Also I'm using about 1/2 of the available 750 GB of storage.
Here's what's up:
1. The fans boot immediately after the computer is turned on and never stop, making everything much too loud...like a plane is taking off or something.
2. The computer is WAY too hot. Right now I'm running Astrill, Chrome, Activity Monitor, and System Utility, and when I put my hands on the thing it feels like my fingers are going to melt.
3. The battery life, even at a full charge, is about an hour overall, which ***** for so, so many reasons.
Here's what I've tried:
1. I took it to the Shanghai Genius Bar, but I think that the language barrier is impeding my ability to really say what's wrong. I backed up, and they wiped the hard drive, re-loaded the OS and put all my old stuff back on the computer. They also deleted SOMETHING from the Preferences part of the library, but I don't know what it was. Everything runs much faster now, but the fan, the heat, and the battery are still having their issues.
2. I've checked the "all processes" CPU usage. There's nothing unusual (as far as I can tell), so I'm at a serious loss as to say why the computer is running so hard. Even with all the processing running as you see below, the fan's still blasting and I've lost 50% battery life in the past 40 minutes.
3. I've tried the fix that requires deleting com.apple.desktop.plist and com.apple.desktop.plist.lockfile. It changed the way the desktop looked and absolutely nothing else.
PLEASE, PLEASE, PLEASE help me! I'm a graphic designer and often run the CS6 Suite. (Currently, however, I am NOT running any Adobe programs and I'm still experiencing the problems.) It's really important that I am able to run Photoshop, Illustrator, and InDesign at once, and it CAN, but with the heat problems I'm having without ANY of the graphics stuff running, it worries me.

Just took another look at iStat Menus (I've only had it for a couple of days - I used to use the old iStat Pro widget) and it seems as if you can make fan speed defaults and use them instead of relying on your MBPs sensors to take care of the fans... see...
Might want to use that 'medium' speed (there by default as I know I didn't add it) and keep an eye on your temps. If you start heating up to much, go back to the 'Default'.
Clinton

Macbook pro is not charging, fans running constantly and very loudly

I have a macbook pro 13-inch, Late 2011, until a month or so ago it had been running perfectly with no problems. At some point the magasfe power adapter stopped working, when i plugged it into my laptop there would be no light on it, and my laptop would not turn on or show any sign of turning on, i also tried the charger on my friends macbook and it did not charge hers either, i assumed it was a problem with the charger and therefore bought a new one but then found there was other problems with the laptop, it seems to only turn on when i connect the charger and then quickly press the power button before a light comes on the magsafe power adapter and hold it for around 5 seconds, the light is constantly green on the magsafe power adapter, as soon as it starts up the fans come on and are extremely noisy, the barttery doesn't charge and the laptop only works when connected to a source of power, the battery icon has an x in it and says 'no battery available' i have tried multiple supposed fixes such as resetting the SMC, cleaning the fan, and other things i have seen online but nothing seems to be working, I'm starting to wonder if the battery needs to be replaced? and if that has anything to do with the fans running constantly, can anyone help or having any other suggestions of how to fix my problem?
thanks
Jordan

Make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar
Note that you posted in the Mac Pro desktop forum

My G5 is starting up with an icon of a file folder with the smile face. Motor runs loudly and then nothing. What is going on?, my G5 is starting up with an icon of a file folder with the smile face. Motor runs loudly and then nothing. What is going on?

My G5 is starting up with an icon of a file folder with a blue smile face. The motor will run loudly for a few minutes and then nothing. I can not get it to run at all.
Any suggestions?

Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.
If that doesn't work, Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214

Fan runs loud and continuously

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