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.

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MacBook Pro Fan running fast after Mavericks update

Hello All! I have a 2009 MacBook Pro 13 inch and I have noticed that after I updated to Mavericks my fan has been running really fast and my computer getting warmer than normal. It's always on a table so there is nothing blocking the port in the rear. Any ideas on how to fix this?

Hey emilyiow,
Thanks for the question. I understand that you are experiencing issues with your MacBook Pro in relation to the fans. Sometimes, this symptom can indicate that the SMC needs to be reset. For more information and instructions on how to do so, check out this resource:
Intel-based Macs: Resetting the System Management Controller (SMC) - Apple Support
http://support.apple.com/en-us/ht3964
After performing normal troubleshooting, these symptoms may indicate that an SMC reset could be necessary.
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- The computer's fans run at high speed although the computer is not experiencing heavy usage and is properly ventilated.
Additional information:
Using Apple Hardware Test - Apple Support
http://support.apple.com/en-us/HT201257
What to do if you get an error in AHT
Confirm that the power adapter is connected if you're using a Mac notebook.
Confirm that all external devices are disconnected from your computer.
Record any error code given so that you can give the information to a Mac Genius, Apple Authorized Service Provider, or Apple Technical Support Specialist.
Thanks,
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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.

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.
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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.

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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.

MacBook Pro Fans Running Fast

My mom's 2007 17" MacBook Pro keeps running its fans. Both fans run at 3400RPM minimum when it is awake. There is no fan-controlling utility installed. Is it normal for them to be running that fast? Also, the temperature (147˚F) seems a bit high.

Yeah, only running Mail and stuff. Actually, 3500RPM is my iMac's maximum fan speed.
I'll try the SMC reset.
OGELTHORPE wrote:
That is not normal if you are using lightweight applications, like web browsing, email, text editiing, etc. Try a SMC reset.
http://support.apple.com/kb/HT3964
Caio.

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MacBook Pro fans running constantly?

I have had a MacBook Pro (2011) running OS X Lion then OS X Mountain Lion since last August. For the past couple of months, I've had a problem with the fans on the laptop. I made my first trip to the Genius Bar because the fans seemed like they weren't even working. The fans got extremely loud, making strange buzzing / humming noises, and the laptop got very hot. Apple replaced the fans free-of-charge, and I was out of there. Not one week later, the fans started up again with a new problem. When the fans started going, and the laptop became very hot, the screen would shut itself off at random times. So for about 3-5 seconds, the keyboard / display would shut off, with the laptop still up and running (I could still hear the fans.) I went back to the Apple Store last week to get it fixed. They kept it for 3 days to run a full diagnostic, and they discovered... nothing. The paper they gave back stated "No Trouble Found" and I went home without a solution. I've been looking up my problem, and it seems a lot of people have it. So I checked out the Activity Monitor, to see what came up... I would post the numbers on here, but they're rapidly changing... What does that mean? My friend and I both got our MacBook Pros at the same time, and his has no problems, so I compared what we both used them for. He mostly uses his at home for photo editing and Safari. I use mine all-day, every day for school work. So am I overusing the laptop? Also, when I charge the laptop, I don't shut it down, I just close the lid and plug it in... I actually rarely shut down my laptop altogether. Can this be the problem? Sorry I'm writing so much, but this problem has become really annoying, and I want it to be fixed before school starts in a few days. I'm pretty much writing every possible reason that has come to mind why this has been happening...
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plane928,
have you tried resetting your MacBook Pro’s System Management Controller?

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Hello everyone,
I recently downloaded the last update of Mavericks on my Macbook pro (13 inch, mid 2012).
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Mid 2012 Macbook Pro.
Running OS X 10.9.4 Mavericks
2,5 GHz intel Core I5
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What I've Done Thus Far:
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Nathan.
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EtreCheck version: 1.9.15 (52)
Report generated 21 Aug 2014 17:45:35 GMT+2
Hardware Information: ?
MacBook Pro (13-inch, Mid 2012) (Verified)
MacBook Pro - model: MacBookPro9,2
1 2.5 GHz Intel Core i5 CPU: 2 cores
4 GB RAM
Video Information: ?
Intel HD Graphics 4000 - VRAM: (null)
Color LCD 1280 x 800
System Software: ?
OS X 10.9.4 (13E28) - Uptime: 0 days 0:45:35
Disk Information: ?
APPLE HDD TOSHIBA MK5065GSXF disk0 : (500,11 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted>: 209,7 MB
Macintosh HD (disk0s2) / [Startup]: 499,25 GB (486,95 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
OPTIARC DVD RW AD-5970H
USB Information: ?
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Computer, Inc. IR Receiver
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ?
Apple Inc. thunderbolt_bus
Gatekeeper: ?
Mac App Store and identified developers
User Login Items: ?
None
Internet Plug-ins: ?
Default Browser: Version: 537 - SDK 10.9
QuickTime Plugin: Version: 7.7.3
Audio Plug-ins: ?
BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
AirPlay: Version: 2.0 - SDK 10.9
AppleAVBAudio: Version: 203.2 - SDK 10.9
iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins: ?
Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
3rd Party Preference Panes: ?
None
Time Machine: ?
Time Machine not configured!
Top Processes by CPU: ?
      3% WindowServer
      1% mds
      0% systemstatsd
      0% mds_stores
      0% fontd
Top Processes by Memory: ?
287 MB com.apple.WebKit.WebContent
111 MB com.apple.IconServicesAgent
106 MB Safari
90 MB mds_stores
57 MB sandboxd
Virtual Memory Information: ?
432 MB Free RAM
1.69 GB Active RAM
1.26 GB Inactive RAM
648 MB Wired RAM
1.49 GB Page-ins
12 KB Page-outs

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen. Click the Clear Display icon in the toolbar. Then take one of the actions that you're having trouble with. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

Macbook Pro 2011 - running slow after installing Yosemite

Can anyone help me - my late 2011 Macbook Pro is running very slow since installing Yosemite. Also my Microsoft Office for Excel is not allowing me to type into cells - I can copy and paste but not add new text.
I have run the Etre diagnostic app (as suggested on another thread) and these are the results I get. Can anyone help - or do I have to uninstall Yosemite and how would I do this?
Problem description:
Macbook running slow since installing Yosemite - cannot type in Office Excel spreadsheets at all
EtreCheck version: 2.0.11 (98)
Report generated 6 November 2014 19:04:01 GMT
Hardware Information: ℹ️
MacBook Pro (15-inch, Early 2011) (Verified)
MacBook Pro - model: MacBookPro8,2
1 2 GHz Intel Core i7 CPU: 4-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 3000 - VRAM: 384 MB
Color LCD 1440 x 900
AMD Radeon HD 6490M - VRAM: 256 MB
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: 2 days 19:30:17
Disk Information: ℹ️
Hitachi HTS547550A9E384 disk0 : (500.11 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / [Startup]: 498.88 GB (392.29 GB free)
Core Storage: disk0s2 499.25 GB Online
HL-DT-ST DVDRW GS31N
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[loaded] com.logmein.driver.LogMeInSoundDriver (4.1.46f31) Support
[not loaded] com.novatelwireless.kext.wwan (3.0.15) Support
[loaded] com.rim.driver.BlackBerryUSBDriverInt (0.0.74) Support
[not loaded] com.rim.driver.BlackBerryUSBDriverVSP (0.0.74) Support
/System/Library/Extensions/NovatelWirelessWWAN.kext/Contents/PlugIns
[not loaded] com.NovatelWireless.driver.NovatelWirelessUSBCDCECMControl (3.0.15) Support
[not loaded] com.NovatelWireless.driver.NovatelWirelessUSBCDCECMData (3.0.15) Support
[not loaded] com.novatelwireless.driver.3G (3.0.15) Support
[not loaded] com.novatelwireless.driver.3GData (3.0.15) Support
[not loaded] com.novatelwireless.driver.DisableAutoInstall (3.0.15) Support
[not loaded] com.novatelwireless.driver.NWVBE (3.0.15) Support
Problem System Launch Agents: ℹ️
[failed] com.apple.CallHistoryPluginHelper.plist
[failed] com.apple.coreservices.appleid.authentication.plist
[failed] com.apple.icloud.fmfd.plist
[failed] com.apple.security.cloudkeychainproxy.plist
[failed] com.apple.spindump_agent.plist
Problem System Launch Daemons: ℹ️
[failed] com.apple.corestorage.corestoragehelperd.plist
[failed] com.apple.ctkd.plist
[failed] com.apple.ifdreader.plist
[failed] com.apple.nehelper.plist
[failed] com.apple.wdhelper.plist
[failed] com.apple.xpc.smd.plist
Launch Agents: ℹ️
[running] com.logmein.logmeingui.plist Support
[running] com.logmein.logmeinguiagent.plist Support
[not loaded] com.logmein.logmeinguiagentatlogin.plist Support
[running] com.rim.BBAlbumArtCacher.plist Support
[running] com.rim.BBLaunchAgent.plist Support
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist Support
[running] com.logmein.logmeinserver.plist Support
[invalid?] com.logmein.raupdate.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[running] com.rim.BBDaemon.plist Support
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist Support
[loaded] com.divx.agent.postinstall.plist Support
[failed] com.facebook.videochat.[redacted].plist Support
[loaded] com.google.keystone.agent.plist Support
[running] com.microsoft.LaunchAgent.SyncServicesAgent.plist Support
[running] com.spotify.webhelper.plist Support
User Login Items: ℹ️
iTunesHelper ApplicationHidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Microsoft Database Daemon Application (/Applications/Microsoft Office 2011/Office/Microsoft Database Daemon.app)
Dropbox Application (/Applications/Dropbox.app)
Spotify Application (/Applications/Spotify.app)
AdobeResourceSynchronizer ApplicationHidden (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)
TomTomHOMERunner ApplicationHidden (/Users/[redacted]/Library/Application Support/TomTom HOME/TomTomHOMERunner.app)
BlackBerry Device Manager ApplicationHidden (/Library/Application Support/BlackBerry/BlackBerry Device Manager.app)
HPEventHandler UNKNOWN (missing value)
Internet Plug-ins: ℹ️
OVSHelper: Version: 1.1 Support
Default Browser: Version: 600 - SDK 10.10
AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 Support
FlashPlayer-10.6: Version: 15.0.0.189 - SDK 10.6 Support
DivXBrowserPlugin: Version: 2.2 Support
LogMeIn: Version: 1.0.935 - SDK 10.7 Support
Flash Player: Version: 15.0.0.189 - SDK 10.6 Support
LogMeInSafari32: Version: 1.0.935 - SDK 10.7 Support
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.4.5 - SDK 10.6 Support
AdobePDFViewer: Version: 11.0.09 - SDK 10.6 Support
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
User Internet Plug-ins: ℹ️
Picasa: Version: 1.0 Support
Google Earth Web Plug-in: Version: 6.1 Support
Safari Extensions: ℹ️
Pin It Button
LastPass
AddThis
DivX Plus Web Player HTML5 <video>
3rd Party Preference Panes: ℹ️
DivX Support
Flash Player Support
Time Machine: ℹ️
Skip System Files: NO
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 498.88 GB Disk used: 106.59 GB
Destinations:
HD-PCU2 [Local]
Total size: 499.76 GB
Total number of backups: 6
Oldest backup: 2014-05-30 10:03:08 +0000
Last backup: 2014-09-23 17:43:37 +0000
Size of backup disk: Adequate
Backup size 499.76 GB > (Disk used 106.59 GB X 3)
Top Processes by CPU: ℹ️
      7% WindowServer
      1% AddressBookSourceSync
      1% mds_stores
      1% Microsoft Outlook
      1% BBLaunchAgent
Top Processes by Memory: ℹ️
206 MB com.apple.WebKit.WebContent
176 MB Safari
82 MB mds_stores
77 MB Microsoft Outlook
77 MB Finder
Virtual Memory Information: ℹ️
32 MB Free RAM
1.03 GB Active RAM
1.01 GB Inactive RAM
1.12 GB Wired RAM
32.91 GB Page-ins
1.30 GB Page-outs

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

Macbook pro fan running fast and high cpu usage

The fan has started running all the time the error code is 4SNS/40000000 VPOR-19.763

Hey emilyiow,
Thanks for the question. I understand that you are experiencing issues with your MacBook Pro in relation to the fans. Sometimes, this symptom can indicate that the SMC needs to be reset. For more information and instructions on how to do so, check out this resource:
Intel-based Macs: Resetting the System Management Controller (SMC) - Apple Support
http://support.apple.com/en-us/ht3964
After performing normal troubleshooting, these symptoms may indicate that an SMC reset could be necessary.
Fans
- The computer's fans run at high speed although the computer is not experiencing heavy usage and is properly ventilated.
Additional information:
Using Apple Hardware Test - Apple Support
http://support.apple.com/en-us/HT201257
What to do if you get an error in AHT
Confirm that the power adapter is connected if you're using a Mac notebook.
Confirm that all external devices are disconnected from your computer.
Record any error code given so that you can give the information to a Mac Genius, Apple Authorized Service Provider, or Apple Technical Support Specialist.
Thanks,
Matt M.

Macbook Pro Fans Running At High Speed

My MBP 17" CoreDuo 2.16ghz came back from having the Logic Board replaced at the weekend. All is well except that now the fans run at high speed all the time.
I have installed SMCFanControl, and the current readings are 45 / 113 degrees and the fans are running at 5500 rpm. I took the machine back to the Apple store but when I was there the fans didn't go above 3000rpm (typical huh?). It's nice that the case is now a lot cooler than it used to be but the fans seem very loud to me.
The question is, is this normal? I am not running anything very heavy duty at the moment. Any ideas?
Thanks
Matt

I tend to agree with Ned on SMC fan control (that it arguably causes more problems than it solves).
I had a similar problem with mine recently having the fans run constantly and at full speed. My temperatures never approached yours, but it would fail to go to sleep etc.
I would start with the advice Ned gave you. This is the same path Apple Care led me down in trying to resolve the issue.
Ultimately though I had to do an archival install of the operating system. It is non-destructive so it wasn't a big deal. I just had to slowly re-install patches and observe behavior. Oddly I was able to patch back up to 10.4.9 without the issue re-occuring so the root cause is still a mystery to me.
edit
Patch gone bad maybe? I tried re-applying the 10.4.9 combo before attempting the archival install route with no success. I know that has been suggested many times. Apparenty it solves many issues, but it failed to solve mine.

Macbook pro fans running at 6200 rpm,running slowly and 35deg C?

About i week ago i was noticing significant slowdown in the operation of my mac. Yesterday the slowdowns were so much so as to render it useless.(30+seconds to realize that i had scrolled). I had just downloaded SOPHOS...it found nothing. so i assumed installing it had done something. i proceeded with a clean instal. After a few trys i was able to reinstall and boot up. The computer is functioning but not at the level of a wiped mac. there is still lag as i write this sentence, and at almost every action i see the pinwheel. I did a reset of the SMC and there are no hogs of CPU in the Activity Monitor(All programs). I downloaded a wiget to allow me to see temperature and fanspeed. the highest temperature is 35 degrees C and that is of the CPU, yet my fans are still posting speeds of 6204 rpm.
To make matters worse i'm overseas and cant seem to find information on a genius bar near me.(Toulouse France)
I feel like ive tried everything.
-Highfan speeds
-Laggy functioning (akin to a 5 year old PC).
Macbook pro
2.4 Ghz Intel Core Duo
4Gb 1067 MHz DDr3
Ive only had this this a year and a couple months(warrently just ran out) im prepared to have to pay to fix but has anyone had similar issues? any estimation on what it would cost?
I find it incredibly coincidental this happened the day steve jobs died....
Thanks for any help or advice you can offer.

Backup your files before doing anything. May be a dying hard drive, would account for slowness. Software update fully.
Perform a hardware test
https://support.apple.com/kb/ht1509
that should tell you if it's a bad sensor or something
And yes, perform another SMC reset because your symptoms are typical
Fans
The computer's fans run at high speed although the computer is not experiencing heavy usage and is properly ventilated.
Follow these instructions again
https://support.apple.com/kb/HT3964
Next try a Safe Mode boot holding Shift key see if it continues.
Next create a new user and log into it, then log into it under Safe Mode
https://support.apple.com/kb/HT1455
If it's isolated to one user, then there's something bad in there
Do a Restoring OS X 10.5 10.6. 10.7 - simple overwrite OS method
https://discussions.apple.com/message/16276201#16276201
Check your Flash here and update
http://flashbuilder.eu/flash-player-version.html
Run a malware scan with the free ClamXav
Run ALL of OnyX's cleaning and maintenance aspects and reboot
http://www.titanium.free.fr/

MacBook Pro fan running constantly with no utilization

Just got my boss's MacBook Pro (Retina, Mid 2012) model back from Apple after a GPU related repair (which appears resolved). They replaced logic board amongst other things.
As soon as I turn it on I hear the fan, quietly running. If I close the lid, it runs for about 20 seconds then stops. This is not loud; they are not running full blast (that is a much different sound). But I can hear it in a quiet room. Owner of the laptop was complaining about fan noise before; I assumed he was stressing the CPU but now I can see what he was complaining about.
Activity Monitor (with 'All Processes' selected), sorted by CPU, shows nothing running more than 1-2%, and 'Idle' at the bottom is showing about 99.65%. So there are no runaway processes. The room (ambient temp) is about 66F (not overly hot). The laptop is on a tile counter - no obstacles to airflow. Same issue occurs on battery and wall power. Over a several hour period, I never hear the fan stop.
I did an SMC reset (ctrl-opt-shift-Power) and this seems to have no effect (this seems to be the magic bullet for most of these issues, after tracking down runaway processes).
So my question is - does anyone know what the design is - could it be that the fans are designed to run all the time on this model, but they are (supposed to be) super quiet and not audible at low RPM, and maybe these fans have been become noisy, therefore I'm hearing it? Was this a specific design issue for this model of MacBook pro (with NVidia GPU)?

Update. I downloaded a nice free program called "Macs Fan Control" from MacUpdate. It shows me that I have two fans "Left Side" and "Right Side" and they are both running at the minimum RPM; the window shows Min RPMs as 2160 and 2000 (left/right), and the 'current' is 2161/2005 (changes all the time but very close to the minimum). Max RPM shows 5940/5499 (left/right). "Control" is auto, meaning the program is not trying to control the speed.
I tried setting the minimum below the values above (eg, I tried changing the minimum to 1,500) but it would not let me. I tried setting the minimums above the values shown, and it allowed me. There is obviously a 'safety' feature in the fan program to prevent slowing down the fans to a value below what is considered safe.
I then installed the same program on my MacBook air. I cannot hear any fan on my MacBook air, but - Macs Fan Control shows a single 'Exhaust' fan running at minimum value of 1200. If I press my ear hard against the bottom of the MacBook air, I can just about hear a faint, faint noise.
So my theory now is - the fans are always running on every MacBook (Air, Pro, etc) - the issue is, how fast they run. And, it would appear (from my MacBook Air experience) that the fans are generally quiet.
I then used the program to speed up the left side fan; the noise grew significantly and was unpleasant. At 4,000 RPM it was a deep, throaty sound. I then slowed it back down, and did the same to the right side fan; at 4,000 RPM it was a gentle 'whoosh' sound. SO ... this tells me the left side fan is messed up (bad bearings, etc). I PRESUME the two fans are the same, and should sound 'similar'. Would others agree with my assessment?

MacBook Pro fan running

On my MacBook Pro the fan continuously runs high speed while I'm using it. Any suggestions?

Install iStat Menus 4.05 and find out what your operating temperatures are. If they are not high, then you may have a bad sensor that needs repair.
You might try running hardware diagnostics.
Using Apple Hardware Test
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MacBook Pro fans running high after 40C terperature

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