tufromny
Level 1 (8 points)
Desktops

Q: iMac fan runs full speed

Hi!

My iMac fan runs full speed when I watch videos online. Is there a way to find out what might cause this problem?

 

Imac 2013

OS 10.9.5

2,9 Ghz, core i5

8 Gb ram

1TB HD (900 free)

iMac, OS X Mavericks (10.9.5)

Posted on Aug 8, 2016 3:04 AM

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tufromny

Q: iMac fan runs full speed

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  • Helpful answers

  • by dominic23,

    dominic23 dominic23 Aug 8, 2016 3:27 AM in response to tufromny
    Level 8 (41,541 points)
    Mac OS X
    Aug 8, 2016 3:27 AM in response to tufromny

    Use Activity Monitor to find out.

     

    Finder > Applications > Utilities > Activity Monitor > CPU

    Screen Shot 2016-08-08 at 6.22.46 AM.png

     

    For more info:  https://support.apple.com/en-us/HT201464

  • by tufromny,

    tufromny tufromny Aug 8, 2016 4:38 AM in response to dominic23
    Level 1 (8 points)
    Desktops
    Aug 8, 2016 4:38 AM in response to dominic23

    Thank you. I checked activity monitor. Maximum %CPU showed 0.8 usage google chrome. Energy impact was also low, 1.2 google chrome.

    Then I ran Etrecheck and 7 adware files found could this adware cause fans run full speed?

     

    here is the report:

     

    EtreCheck version: 2.9.13 (267)

    Report generated 2016-08-08 15:14:00

    Download EtreCheck from https://etrecheck.com

    Runtime 1:48

    Performance: Excellent

     

    Click the [Support] links for help with non-Apple products.

    Click the [Details] links for more information about that line.

    Click the [Remove] links to remove adware.

     

    Problem: Other problem

    Description:

    Fan problem

     

    Hardware Information: ⓘ

        21.5" iMac (Late 2013)

        [Technical Specifications] - [User Guide] - [Warranty & Service]

        iMac - model: iMac14,3

        1 2.9 GHz Intel Core i5 CPU: 4-core

        8 GB RAM Upgradeable - [Instructions]

            BANK 0/DIMM0

                4 GB DDR3 1600 MHz ok

            BANK 1/DIMM0

                4 GB DDR3 1600 MHz ok

        Bluetooth: Good - Handoff/Airdrop2 supported

        Wireless:  en1: 802.11 a/b/g/n/ac

     

    Video Information: ⓘ

        NVIDIA GeForce GT 750M - VRAM: 1024 MB

            iMac 1920 x 1080

     

    System Software: ⓘ

        OS X Mavericks 10.9.5 (13F1911) - Time since boot: about 6 hours

     

    Disk Information: ⓘ

        APPLE HDD HTS541010A9E662 disk0 : (1 TB) (Rotational)

            EFI (disk0s1) <not mounted> : 210 MB

            Macintosh HD (disk0s2) / : 999.35 GB (901.47 GB free)

            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB

     

    USB Information: ⓘ

        Apple Inc. FaceTime HD Camera (Built-in)

        Apple Inc. BRCM20702 Hub

            Apple Inc. Bluetooth USB Host Controller

     

    Thunderbolt Information: ⓘ

        Apple Inc. thunderbolt_bus

     

    Gatekeeper: ⓘ

        Mac App Store and identified developers

     

    Adware: ⓘ

        ~/Library/Caches/com.apple.Safari/Extens...safariextension

        ~/Library/Caches/com.apple.Safari/Extensions/Searchme-2.safariextension

        ~/Library/LaunchAgents/com.jdibackup.JustCloud.autostart.plist

        ~/Library/LaunchAgents/com.jdibackup.JustCloud.notify.plist

        ~/Library/LaunchAgents/com.onlineapplicationstatus.AppStatus.plist

        ~/Library/Safari/Extensions/Ebay Shopping Assistant.safariextz

        ~/Library/Safari/Extensions/Searchme.safariextz

        7 adware files found. [Remove]

     

    System Launch Agents: ⓘ

        [not loaded]    5 Apple tasks

        [loaded]    148 Apple tasks

        [running]    31 Apple tasks

     

    System Launch Daemons: ⓘ

        [not loaded]    51 Apple tasks

        [loaded]    137 Apple tasks

        [running]    61 Apple tasks

     

    Launch Agents: ⓘ

        [not loaded]    com.adobe.AAM.Updater-1.0.plist (2015-02-21) [Support]

        [loaded]    com.google.keystone.agent.plist (2016-07-12) [Support]

     

    Launch Daemons: ⓘ

        [loaded]    com.adobe.SwitchBoard.plist (2015-02-21) [Support]

        [failed]    com.adobe.fpsaud.plist (2016-06-14) [Support]

        [loaded]    com.google.keystone.daemon.plist (2016-07-12) [Support]

        [loaded]    com.microsoft.office.licensing.helper.plist (2014-05-09) [Support]

        [loaded]    com.skype.skypeinstaller.plist (2015-03-27) [Support]

     

    User Launch Agents: ⓘ

        [loaded]    com.adobe.AAM.Updater-1.0.plist (2015-02-20) [Support]

        [loaded]    com.bittorrent.uTorrent.plist (2015-02-19) [Support]

        [failed]    com.jdibackup.JustCloud.autostart.plist (2015-06-22) Adware!  [Remove]

        [failed]    com.jdibackup.JustCloud.notify.plist (2015-06-22) Adware!  [Remove]

        [running]    com.onlineapplicationstatus.AppStatus.plist (2016-04-26) Adware!  [Remove]

            ~/Library/Application Support/AppCommon/AppStatus

     

    User Login Items: ⓘ

        iTunesHelper    Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

        Safari    Application  (/Applications/Safari.app)

     

    Other Apps: ⓘ

        [running]    com.etresoft.EtreCheck.99120

        [running]    com.google.Chrome.77296

        [loaded]    438 Apple tasks

        [running]    255 Apple tasks

     

    Internet Plug-ins: ⓘ

        DirectorShockwave: 12.2.0r162 - SDK 10.6 (2015-09-01) [Support]

        o1dbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-16) [Support]

        JavaAppletPlugin: 14.9.0 - SDK 10.7 (2015-02-21) Check version

        Unity Web Player: UnityPlayer version 5.3.0f4 - SDK 10.6 (2015-12-29) [Support]

        Default Browser: 537 - SDK 10.9 (2015-02-14)

        FlashPlayer-10.6: 22.0.0.192 - SDK 10.9 (2016-07-06) [Support]

        QuickTime Plugin: 7.7.3 (2016-07-27)

        Flash Player: 22.0.0.192 - SDK 10.9 (2016-07-06) Outdated! Update

        googletalkbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-11) [Support]

        SharePointBrowserPlugin: 14.4.2 - SDK 10.6 (2015-06-23) [Support]

        AdobePDFViewer: 10.1.1 (2015-02-21) [Support]

        MeetingJoinPlugin: Unknown - SDK 10.6 (2015-06-23) [Support]

     

    Safari Extensions: ⓘ

        Searchme (2015-11-24) Adware!  [Remove]

        SlickSavings (2015-06-22)

        QuickFinder - Laurentiu Moraru - http://www.cloud-extensions.com (2016-03-08)

        Ebay Shopping Assistant (2015-06-22) Adware!  [Remove]

     

    3rd Party Preference Panes: ⓘ

        Flash Player (2016-06-14) [Support]

     

    Time Machine: ⓘ

        Time Machine not configured!

     

    Top Processes by CPU: ⓘ

             5%    fontd

             4%    WindowServer

             2%    kernel_task

             1%    Dock

             0%    Google Chrome

     

    Top Processes by Memory: ⓘ

        852 MB    Google Chrome Helper(3)

        591 MB    kernel_task

        393 MB    Google Chrome

        98 MB    WindowServer

        90 MB    mds_stores

     

    Virtual Memory Information: ⓘ

        4.35 GB    Free RAM

        3.65 GB    Used RAM (1.70 GB Cached)

        0 B    Swap Used

  • by dominic23,Helpful

    dominic23 dominic23 Aug 9, 2016 2:15 AM in response to tufromny
    Level 8 (41,541 points)
    Mac OS X
    Aug 9, 2016 2:15 AM in response to tufromny

    Adware can cause various problems.

     

    Click the Remove (in red) button next to the items shown to get rid of the adware.

  • by den.thed,Helpful

    den.thed den.thed Aug 9, 2016 2:14 AM in response to tufromny
    Level 7 (27,415 points)
    Aug 9, 2016 2:14 AM in response to tufromny

    The CPU usage in your EtreCheck report is low, so I do not think that is the problem. I could be wrong, but if the fan is only speeding up during video usage...? Then I also might suspect that the fan is running faster to help control the graphics temperature.

     

    Personally I would...

     

    1. Shutdown and check the the air-intake on the back to make sure that it free from foreign objects or dust.

    (if the vent is caked with dust, I would gently vacuum it off while the computer is shut-down and disconnected from the power)

     

    2. Make sure that the iMac is in a cool and well ventilated area.

    (If not, then I would try moving it to a cooler area of the house)

     

    Then if the problem still persist...?  I would seriously think about making a service appointment ASAP.

    https://locate.apple.com/

  • by tufromny,

    tufromny tufromny Aug 9, 2016 2:14 AM in response to dominic23
    Level 1 (8 points)
    Desktops
    Aug 9, 2016 2:14 AM in response to dominic23

    I was unable to delete malware as I don't have Time Machine set up. I will vacuum clean first and then see how it works.

  • by dominic23,

    dominic23 dominic23 Aug 9, 2016 4:02 AM in response to tufromny
    Level 8 (41,541 points)
    Mac OS X
    Aug 9, 2016 4:02 AM in response to tufromny

    Adware removal

     

    1. Use  Malwarebytes Anti-Malware for Mac to remove adware.

     

         https://www.malwarebytes.org/antimalware/mac/

     

       Download, install , open,  and run it by clicking “Scan for Adware” button   to remove adware.

       Once done, quit Malwarebytes Anti-Malware.

     

     

     

    2. Disable Extensions and test.

     

       Safari > Preferences > Extensions

       Select and disable all extensions and test.

       Enable Extensions one by one and test.

       To uninstall any extension, select it and click the “Uninstall” button.

     

    3. Safari > Preferences > Search > Search engine:

         Select your preferred search engine

     

    4.  Visit the site you want it be the Home page

     

         Safari > Preferences > General >  Homepage

         Click the button “Set to Current Page” button.