Q: My 2007 MacBook has its fan running all the time!

Thank you Eric. I have reset SMC several times in the past few weeks. It doesn't help.

I suspect that some process or program in the background is hogging resources causing fan to run constantly. I am not able to identify what could that be. That's why I posted the EtreCheck report so that one of you experts could look at it and tell me which one could be the culprit and how to remove it.

Thanks!

Thank you Eric. It looks like a weekend project. Will try this on Saturday and report back.

Thank you Oglethorpe.

Ran Hardware Test - All normal.

Before swapping my old hard drive for the new one, I had removed the rear cover and used compressed air (gently) to blow out dust from the board and the fan. There was some dust not a lot. It did make the fan come on a few minutes later but once the fan comes on, it pretty much stays on until I put the mac to sleep.

I have removed all of the communication software (I clicked on - on the Network preference pain to remove those connection. Do I have to remove software some other way as well?).

I new EtreCheck report is as follows:

Problem description:

The FAN is ON!

EtreCheck version: 2.1.6 (109)

Report generated January 21, 2015 9:22:33 AM GMT+05:30

Download EtreCheck from http://etresoft.com/etrecheck

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

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

Click the [Adware] links for help removing adware.

Hardware Information: ℹ️

    MacBook (13-inch Late 2007) (Verified)

    MacBook - model: MacBook3,1

    1 2.2 GHz Intel Core 2 Duo CPU: 2-core

    4 GB RAM

        BANK 0/DIMM0

            2 GB DDR2 SDRAM 667 MHz ok

        BANK 1/DIMM1

            2 GB DDR2 SDRAM 667 MHz ok

    Bluetooth: Old - Handoff/Airdrop2 not supported

    Wireless:  en1: 802.11 a/b/g/n

    Battery Health: Normal - Cycle count 256

Video Information: ℹ️

    GMA X3100 - VRAM: 144 MB

        Color LCD 1280 x 800

        spdisplays_display_connector

System Software: ℹ️

    Mac OS X 10.6.8 (10K549) - Time since boot: 0:46:55

Disk Information: ℹ️

    Samsung SSD 850 PRO 1TB disk0 : (953.87 GB)

        - (disk0s1) <not mounted> : 210 MB

        MacSSD (disk0s2) / : 1.02 TB (517.58 GB free)

USB Information: ℹ️

    Micron Built-in iSight

    Apple Computer Apple Internal Keyboard / Trackpad

    Apple Computer, Inc. IR Receiver

    Apple Inc. Bluetooth USB Host Controller

Configuration files: ℹ️

    /etc/hosts - Count: 14

Kernel Extensions: ℹ️

        /Applications/M4PConverter/M4PConverter.app

    [loaded]    com.AhaMediaSoft.driver.M4PToMP3CDBurner (2.0.0) [Support]

        /Applications/Toast 8 Titanium/Toast Titanium.app

    [not loaded]    com.roxio.BluRaySupport (1.1.3) [Support]

    [not loaded]    com.roxio.TDIXController (1.6) [Support]

        /Applications/WD +TURBO Installer.app

    [not loaded]    com.wdc.driver.1394HP (1.0.11 - SDK 10.4) [Support]

    [not loaded]    com.wdc.driver.1394_64HP (1.0.1 - SDK 10.6) [Support]

    [not loaded]    com.wdc.driver.USB-64HP (1.0.1) [Support]

    [not loaded]    com.wdc.driver.USBHP (1.0.13) [Support]

        /System/Library/Extensions

    [loaded]    at.obdev.nke.LittleSnitch (2.3.11) [Support]

    [not loaded]    com.Huawei.driver.HuaweiDataCardDriver (4.0.6) [Support]

    [loaded]    com.pctools.iantivirus.kfs (1.0.1) [Support]

    [loaded]    com.seagate.driver.PowSecDriverCore (5.2.2 - SDK 10.4) [Support]

    [loaded]    com.squirrels.airparrot.framebuffer (3 - SDK 10.7) [Support]

    [not loaded]    com.virginmobile.driver (3.0.5) [Support]

    [not loaded]    com.virginmobile.driver.DisableAutoInstall (2.0.6) [Support]

        /System/Library/Extensions/Seagate Storage Driver.kext/Contents/PlugIns

    [not loaded]    com.seagate.driver.PowSecLeafDriver_10_4 (5.2.2 - SDK 10.4) [Support]

    [not loaded]    com.seagate.driver.PowSecLeafDriver_10_5 (5.2.2 - SDK 10.5) [Support]

    [not loaded]    com.seagate.driver.SeagateDriveIcons (5.2.2 - SDK 10.4) [Support]

        /System/Library/Extensions/VirginMobile.kext/Contents/Plugins

    [not loaded]    com.virginmobile.driver.Data (3.0.5) [Support]

Startup Items: ℹ️

    CDBurnerService: Path: /System/Library/StartupItems/CDBurnerService

    HWNetMgr: Path: /Library/StartupItems/HWNetMgr

    MobileBrServ: Path: /Library/StartupItems/MobileBrServ

    Startup items are obsolete in OS X Yosemite

Problem System Launch Agents: ℹ️

    [loaded]    com.paragon.NTFS.auth.plist [Support]

Problem System Launch Daemons: ℹ️

    [not loaded]    org.samba.winbindd.plist [Support]

Launch Agents: ℹ️

    [loaded]    at.obdev.LittleSnitchNetworkMonitor.plist [Support]

    [running]    at.obdev.LittleSnitchUIAgent.plist [Support]

    [running]    com.bjango.istatmenusagent.plist [Support]

    [loaded]    com.hp.help.tocgenerator.plist [Support]

    [loaded]    com.hp.messagecenter.launcher.plist [Support]

    [running]    com.jeppesen.jsum.agent.plist [Support]

    [running]    com.seagate.SeagateStorageGauge.plist [Support]

    [not loaded]    com.teamviewer.teamviewer.plist [Support]

    [not loaded]    com.teamviewer.teamviewer_desktop.plist [Support]

Launch Daemons: ℹ️

    [running]    at.obdev.littlesnitchd.plist [Support]

    [loaded]    com.adobe.fpsaud.plist [Support]

    [loaded]    com.adobe.versioncueCS3.plist [Support]

    [running]    com.bjango.istatmenusdaemon.plist [Support]

    [loaded]    com.bombich.ccc.plist [Support]

    [loaded]    com.jeppesen.JDMPrivHelper.plist [Support]

    [loaded]    com.microsoft.office.licensing.helper.plist [Support]

    [loaded]    com.novatelwireless.mobilink3.plist [Support]

    [loaded]    com.novatelwireless.NvtlServer.plist [Support]

    [not loaded]    com.teamviewer.teamviewer_service.plist [Support]

    [loaded]    com.timesoftware.timemachineeditor.backupd-auto.plist [Support]

User Launch Agents: ℹ️

    [running]    ws.agile.1PasswordAgent.plist [Support]

User Login Items: ℹ️

    None

Internet Plug-ins: ℹ️

    DirectorShockwave: Version: 11.5.6r606 [Support]

    Google Earth Web Plug-in: Version: 6.0 [Support]

    Flip4Mac WMV Plugin: Version: 2.3.4.1 [Support]

    AdobePDFViewerNPAPI: Version: 11.0.07 - SDK 10.6 [Support]

    FlashPlayer-10.6: Version: 16.0.0.257 - SDK 10.6 [Support]

    Silverlight: Version: 4.0.60531.0 [Support]

    Flash Player: Version: 16.0.0.257 - SDK 10.6 [Support]

    QuickTime Plugin: Version: 7.6.6

    iPhotoPhotocast: Version: 7.0

    SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Support]

    AdobePDFViewer: Version: 11.0.07 - SDK 10.6 [Support]

    GarminGpsControl: Version: 4.0.4.0 Release - SDK 10.6 [Support]

    JavaAppletPlugin: Version: 13.8.3 - SDK 10.6 Check version

User internet Plug-ins: ℹ️

    WebEx: Version: 1.0 [Support]

Safari Extensions: ℹ️

    ClickToFlash-1 [Installed]

Audio Plug-ins: ℹ️

    iSightAudio: Version: 7.6.6

3rd Party Preference Panes: ℹ️

    Adobe Version Cue CS3  [Support]

    Flash Player  [Support]

    Flip4Mac WMV  [Support]

    Growl  [Support]

    MacFUSE  [Support]

    Paragon NTFS for Mac ® OS X  [Support]

    Tuxera NTFS  [Support]

Time Machine: ℹ️

    Time Machine information requires OS X 10.7 "Lion" or later.

Top Processes by CPU: ℹ️

         7%    WindowServer

         7%    mbbservice

         3%    Transmission

         3%    SystemUIServer

         2%    firefox

Top Processes by Memory: ℹ️

    421 MB    firefox

    283 MB    Mail

    249 MB    mds

    107 MB    WindowServer

    86 MB    Finder

Virtual Memory Information: ℹ️

    1.60 GB    Free RAM

    1.44 GB    Active RAM

    680 MB    Inactive RAM

    577 MB    Wired RAM

    301 MB    Page-ins

    0 B    Page-outs

Diagnostics Information: ℹ️

    Jan 21, 2015, 08:36:11 AM    Self test - passed

    Jan 20, 2015, 10:41:52 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/Mail_2015-01-20-104152_[redact ed].crash

Any suggestions?

Thanks!