2008 macbook pro fan runs hot

My mac runs really hot, is there something I can update in the OS to help fix this? The monitor is starting to separate from the back (seriously) form the heat. I use my mac a LOT and I have two small kids so it's been bumped around a few times, so who knows if that had something to do with it and I plan to take it to apple to have it looked at (after I back it up this week) but was wondering if there was a fix for it running hot. It almost burns my fingers above the keyboard at the top if I touch it when it is running hot (if I have a lot going, illustrator, photoshop, dreamweaver etc).
- b

I've had the same problem ever since installing Snow Leopard. Random high heat even with no system activity. One thing that seemed to help slightly was to un-check the "Open in 32-bit mode" checkbox in the "Get Info" window of Safari. This seems to avoid using the 32-bit version of Flash.
Another temporary fix that I found elsewhere in the discussions is to shut the MBP down, remove the battery and disconnect the power cord, then press the power button for 5 seconds. Re-install the battery, then boot. This supposedly does a partial reset of the PMU (Power Management Unit.)
I haven't had the problem recently (in the last week or so, knock on wood) after installing several seemingly unrelated updates. I have installed the "ProKit 6.0.1 (SnowLeopard)" update and the "Java for Mac OS X 10.6 Update 3", but NOT the "MacBook Pro SMC Firmware Update 1.4" since my MBP doesn't qualify.
My MB Pro runs cool now, except when Time Machine is grinding away. The updates may or may not have fixed the problem. Good luck.

Similar Messages

My late 2008 Macbook Pro is running hot with Mountain Lion

I've seen a few messages on here and on other sites about people's MBP's running about 5 to 10degC hotter after installing Mountain Lion.
I've had Mountain Lion for a good 5 days and I've seen no improvement. I've fixed permissions using Onyx, I've reset the PRAM and the SMC and I've also gone through all of my apps to update any that do not run on Mountain Lion.
No improvement.
As I sit here now and type, my MBP is running at 66degC and the fan is at 3000rpm.....I then use smc control to ramp the fan up to 6000rpm.....the temperature drops to around 62degC.....I then set the fanspeed to default. About 2 minutes later, the temperature increases and the fan automatically ramps up again to around 3000rpm. Ive also updated Adobe Flash.
I only have Transmission and Safari open - that's it. Nothing else.
Does anybody have any idea how to resolve this issue or do I need to hold tight and wait for Apple to acknowledge it and issue a corrective patch? Or simply, is it that my machine is on it's deathbed? It worked okay with Lion!
I am almost convinced that Apple are upgrading these new OSX in a way so that we all have to keep going out and buying new MBP's - this isn't going to happen. I will downgrade back to Lion, and then Snow Leopard, if I have to. I will get my full money's worth with this laptop, and then I might consider going back to Windows.....
Any suggestions would be appreciated.
Thanks

First step I take is to make a list of the Apps I have installed that I want in the new setup as well as any irreplaceable folder/files you do not want to lose. Pretty much everything you need is in your User folder but creating the full bootable image will create a copy of everything on your hard drive just incase. A full image with CCC or SuperDuper can also be used to get your system back to square one if things go bad. Time Machine is also a good source to recover data, but I would use one of the other programs so you'll have multiple backups I found it also works best if you use the exact same user name on the new system to prevent file permissions issues.
Read http://support.apple.com/kb/HT2980 for the important stuff. It is out dated but still applies in Lion. iCloud also makes short work out of this as well. On first boot ML asks for your Apple ID, if you are using iCloud syncing Contacts, Calendars/Reminders, Notes and Safari Bookmarks will automatically get restored. All I had to do was replace my email folders and preference files for the hard stuff. On top of that copying from the back up your Documents folder, the Music/iTunes folder is all that is needed for iTunes and Pictures/iPhoto Library restored my iPhoto pictures.
Then go out onto the net and download fresh installs for any third party apps you may use. A quick Google search will generally find any data or other files you need to recover that may be hidden in the file system. It sounds tougher than it is and once you've done it it will be much quicker and easier down the road when you have to do it again. I'm sure I missed lot of info here but check and double check that you have all the data you want back on your new setup before wiping any of your back up drives, give it a few weeks before you commit the drives to backing up your new system.

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 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.

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...
Please answer, ASAP
- Alex

plane928,
have you tried resetting your MacBook Pro’s System Management Controller?

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!

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.

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.

Why is my macbook pro fan running so frequently and staying so hot?

It seems like recently my MacBook Pro 5 has issues with being too hot. Is this a result of keeping too many applications open?
Thanks,

Make sure nothing is blocking the vents.
According to the user manual it states in part:"Do not operate your MacBook Pro on a pillow or other soft material, as the material can block the airflow vents. Never place anything over the keyboard when operating your MacBook Pro. Never push objects into the ventilation openings."
MacBook Pro: Care, Use, and Safety Information
"Do not place your MacBook Pro on your lap or other body surface for extended periods of time. Prolonged body contact can cause discomfort and potentially a burn."

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
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Disk Information: ℹ️
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        disk0s1 (disk0s1) <not mounted> : 210 MB
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        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
    MATSHITADVD-R   UJ-898
USB Information: ℹ️
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    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Computer, Inc. IR Receiver
Gatekeeper: ℹ️
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Kernel Extensions: ℹ️
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Startup Items: ℹ️
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    Startup items are obsolete in OS X Yosemite
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Time Machine: ℹ️
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            Backup size 3.00 TB > (Disk size 499.25 GB X 3)
    /sbin excluded from backup!
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    /bin excluded from backup!
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Top Processes by CPU: ℹ️
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        19%    Safari
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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 late 2008 Macbook aluminium is running hot

i already upgrade to 8GB 1333 Ram and 120GB SSD+500GB harddrive (remove dvd).
when open software like new macbook pro 2012. but if running heavy software then will Hot.
68°C will runing 5000-6500rpm...i scare overheat...
if original is 2.0Ghz intel core 2 duo cpu and 2GB 1066mhz ram..when install mountain lion will very slow , and always lag....
after upgrade my macbook late 2008 aluminium..running perfect like new macbook pro 2012. only Temperature problem running heavy software..
so any body can share u opinion.....
Thank You,
by raytooth

First step I take is to make a list of the Apps I have installed that I want in the new setup as well as any irreplaceable folder/files you do not want to lose. Pretty much everything you need is in your User folder but creating the full bootable image will create a copy of everything on your hard drive just incase. A full image with CCC or SuperDuper can also be used to get your system back to square one if things go bad. Time Machine is also a good source to recover data, but I would use one of the other programs so you'll have multiple backups I found it also works best if you use the exact same user name on the new system to prevent file permissions issues.
Read http://support.apple.com/kb/HT2980 for the important stuff. It is out dated but still applies in Lion. iCloud also makes short work out of this as well. On first boot ML asks for your Apple ID, if you are using iCloud syncing Contacts, Calendars/Reminders, Notes and Safari Bookmarks will automatically get restored. All I had to do was replace my email folders and preference files for the hard stuff. On top of that copying from the back up your Documents folder, the Music/iTunes folder is all that is needed for iTunes and Pictures/iPhoto Library restored my iPhoto pictures.
Then go out onto the net and download fresh installs for any third party apps you may use. A quick Google search will generally find any data or other files you need to recover that may be hidden in the file system. It sounds tougher than it is and once you've done it it will be much quicker and easier down the road when you have to do it again. I'm sure I missed lot of info here but check and double check that you have all the data you want back on your new setup before wiping any of your back up drives, give it a few weeks before you commit the drives to backing up your new system.

MacBook Pro Retina - Running Hot

Hello everyone,
I have had my new MacBook Pro Retina for less than a week now and I am loving it.
I already have a ton of great applications installed, but I have noticed it is running extremely hot.
I have uploaded an image of iStat in the systems current state. The picture is labeled iStat_IntelHD4000 indicating the system is running on the Intel graphics chipset at a very low load. (Only running Chrome.)
The next image attached is a called iStat_nVidia indicating the system is running on the nVidia graphics chipset at a significantly higher load. (Running VMware fusion with a light-weight install of Windows 7 x64.)
As you can see, the system's temperature has increased significantly even when just running a simple virtual machine under no load other than windows system overhead.
I am a fairly experienced IT professional, but I have not had a macintosh computer since a g4 iBook; loved that laptop :-)
Some statistics I could not show on here are from my bootcamp install. I installed Star Wars: The Old Republic yesterday evening, and that's when the red flag really went up.
I have SpeedFan installed on the Windows partition. I fired up SWTOR w/ max graphics and the game runs really smooth. However, the GPU temp hit 90 degrees Celsius before the fans sounded like the laptop was going to lift off the table and rocket into space.
I appreciate anyone else's input as it seems this is starting to become a trending discussion.
Cheers,
ChardonsFinest
iStat_IntelHD4000
iStat_nVidia

Hi Shootist007,
Good question....
Here is a few screenshots of SpeedFan under Windows 7 x64.
Standard system boot into OS, no other apps running other than background processes and internet explorer.
Still pretty warm and Windows does not use the Intel graphics chipset. I used the standard installer from Bootcamp to install drivers, app support, etc...
You can ignore the threashold indicators in speedfan as I did not configure any of them.

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 fans running when plugged into Thunderbolt displays

I just got a sweet setup at work - a new MacBook Pro and 2 Thunderbolt displays. However, immediately upon setup I noticed the fans on the Mac Book operating constantly, even when I was just surfing the net or working in one Microsoft program.
I just spent a few hours working on the laptop - not plugged in to the Thunderbolt displays - and the fans did not go on at all. Within minutes of plugging it in to the displays, the fans started up again. So I think it may have something to do with the Mac Book being plugged into the Thunderbolt displays.
Can anyone help?
Mac Book Pro, Version 10.7.2, 2.4 GHz Intel Core i7, 8 GB 1333 MHz DDR3

Hello,
I'm so sorry for the slow response! I ended up calling Apple because I was still mystified and no one was responding here.
The nice gentleman at Apple told me the following. The MacBook Pro can handle two Thunderbolts max. If the CPU is constantly running hot, then it could be an issue in the long term.
We went through the software update process for the Thunderbolt displays again, and it turns out that the software was NOT updating!!! It's not the usual "click install and the computer takes care of it all" sort of update - unfortunately I don't remember exactly what we did, but you have to go to the Applications folder and actually install something.
You'll know if you haven't followed these steps if, when you go back to check for updates, the Thunderbolt display update keeps popping up.
Since installing that firmware update, I have been using my MacBook with only one display. In the next week, I will probably plug it in to the second display and see if there are fan issues. If so, then Apple told me to call them back and see about further troubleshooting.
I hope this was somewhat helpful. If you are still unclear, I'd say call Apple! They were really helpful! Good luck!

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.
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.

2008 macbook pro fan runs hot

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