Combo: High CPU temperature

Hi,
My PC CPU temperature is 43C when idle. But it rises up to 60C when under load.
The system temperature ranges from 35 to 38 depending on system load.
I have double checked CPU fan, it is perfectly attached.
CPU clock is 3.0 GB 1MB, 512 DDR1 @ 400 MHz
I am running the system on the default clocks (No overclocking).
3 Fans for system cooling.
Is this normal temperature?
Thanks,

Very normal, Almost to cold for a Prescott! I would like to see these temps at my system.....

Similar Messages

Can high cpu temperature melt processor?

Hallo, mayby stupid question, but i was just wondering, if high temperature inside my macbook air (2012 i5) can melt my processor or something like that...
I am talking about 85 C continuosly1 or max 2 hours per day at cpu (oc course not every day) :/ i dont want to demage my mac...
Thx for any answers.

High enough temperatures can melt anything, but your mackbook air is designed to operate continuously, with fans to manage CPU temp. As long as you are in an environment where the air temperature is within standard (10 to 35C), your macbook is fine.

Portege M400 - High CPU temperature

Hi,
I'm having a problem with CPU temperature in my M400 (Vista OS). When I power up computer, initial temperature is around 35C, but after about 15 minutes of work it jumps to 60C and stays there.
Last night reached 80C and that really concerned me. I tried anything from upgrading BIOS (v3.6) to changing power options in Vista.
I don't know if this is actually funny, but a few days ago I placed a pack of chocolate next to cooler (about 10 centimeters away) and after 5 minutes I noticed it started to melt. :(
Please help! Any suggestion is welcome!
Regards,
Jovan

Hi Jayjay,
I haven't experienced any unusual shut downs so far. The only problem was keyboard buttons overheating. After using computer in tablet mode keyboard would become pretty hot.
However, as you suggested, I used vacuum cleaner on my computer and the situation is quite better now. Idle temperature is 44C-47C, while during high performance it goes up to 70C. The good part is that when I leave the computer idle for few minutes it automatically drops down to default 44C-47C (not like before).
Now, I can't be absolutely sure how I managed to do this, but it definitely has something to do with Toshiba Power Saver, which is only like "add-on" to Vista's power management. There is an option that sets CPU to Cooling optimized mode. The down side of this story is that my cooler is really noisy now but I don't care much! :)
Thank you for your help!
Regards!

High CPU temperature on Tecra M5

I dont know if it's normal, but my CPU has a normal temperature of 77C, and when the CPU increases to 50%, the temperature increases to 100C.
Is this normal?
My fan is always making to much noise...
I'm using Vista and a trial tool for monitoring temperature - hardware temperature monitor 4.3

Hi,
this hardware monitoring tools are not giving the real temp out. I tried Hardware doctor and it says that my Qosmio is running about 120 (!!) so I dont think its supposed to be the
real temperature of my CPU!
If your FAN is running constantly, maybe your fan and cooling system is clobbed with dust. Maybe cleaning the whole thing would be useful. On the other side, try to adjust the setting in the "toshiba power saver" and try to find settings which fit for you (performance/silence) because you have a powerful system and then its normal that your fan is running high.
He had to cool a CPU, a VGA and a little bit of heat out of the case.
Greets

High CPU temperatures with Yosemite

Hi,
Today I made a clean install of Yosemite on my Macbook Pro. I saw a big difference of the cpu and other components temperature than Mavericks:
(the weather is not changed from yesterday)
Yosemite:
- Safari with only an open tab
cpu: 58°-67°
Mavericks:
- Safari with three open tabs (Facebook, Gmail, Youtube)
- Illustrator cs3 with an open file (big size an some vectors)
- iTunes
48°-52°
Also the battery lost 50 minutes of autonomy than the same situation with Mavericks
Yosemite uses too much cpu (gpu) resources or is a poorly optimised s.o.
Probably Istat Pro is still not too compatible wit the new os x....I hope in some fix or update that improves the situation (for Yosemite...)
Someone has encountered the same problem?
MacBook Pro (17-inch, Late 2011), 2,4 GHz Intel Core i7, 8 GB 1333 MHz DDR3

Open Activity Monitor and see what's running in the background under All Processes.
Whatever is using most of your CPU's resources is not needed, click on quit process and see if that helps keep your CPU run cooler.
Also, check your login items and see what's loading when you start your MB Pro. Uncheck those items if not needed and restart your computer.
I have a Late 2011 MB Pro that has an idle temp of 47 - 50 C.
Another possible solution, if you're techically competent, open the back of your MB Pro and blow off gently the inside of your MB Pro to get rid of any dust or particles inside your notebook.

High CPU temperature

Please is normal that a MBP 15'' 2.8GHz while encoding video of normal quality reaches 95 DEgrees Celsius and use of 125% of CPU, fans were going at 6200 rpm

SOLVED
but anyway I got a little help by searching this forum to find out how "to find" out why my mac is overheating.
The reason was the adobe distiller, the invisibly was running all the time. I'm using a lot adobe pdf printing in file - and there was a printing job still hanging on, and with some problems. Just in case anybody will encouter the same problem:
check the print&faxes->printing->print queue...
My temp went no back to 50% and activity to 5% and the fans are off so I can enjoy it again!
gr,
A

Mid-2009 macbook pro high cpu temp ( 100C) after every cold boot

Hi everyone,
Every time I cold-boot my MBP, the CPU temperature sky rockets to 100C within 3 minutes at idle with the fans barely kicking in until that point. The activity monitor shows 97% idle with no major processes running and this issue is reproducible every time I turn on the computer. However, if I immediately reboot the computer (warm boot), the computer runs normally (~70C CPU temp, fans @ 2000 rpm). If I do a SMC reset, the computer boots normally for the next immediate single cold boot but symptoms return thereafter. The only way to prevent the high CPU temperatures is to do a SMC reset before ever cold boot.
I'm wondering if someone else has had these symptoms with their laptop and how they fixed it. The system is still under apple care and the symptoms are reproducible but I'd rather not bring it in as this is my daily-use machine.
mid-2009 MBP (3.06 ghz)

PRAM/NVRAM
http://support.apple.com/kb/HT1379
Hardware Test
http://support.apple.com/kb/HT1509
Check your Acitivity monitor for runaway processes
Backup files to external drive and disconnect
Lion
Reboot holding command + r and use the Recovery Partition if on Lion, over-install/re-install
Snow Leopard
or hold c and boot off 10.6 disk and over-install OS X, then use the 10.6.8 Combo Update
http://support.apple.com/kb/DL1399

K7N2G CPU temperature - help!

I just built a new system for a friend and after putting it together and starting it up - xp was nicely loading then all of a sudden about 1 minute from the time it was switched on - the whole pc just switches off. Another time I went into the BIOS to configure and while I was changing values in there - it again switch off like about 1 minute of me going into the BIOS.
I can't figure whats wrong - the power supply I first blamed - but its a 350 Watt model and there is only 1 PCI card - two ROM drives and a HD - so no power issues. Then I suspected that it might be some MSI security feature kicking in - the most likely something shutting down the PC because of a high CPU temperature. When I was in the BIOS I noticed that the CPU temp was around 61-63 degrees.
I built my own system (KT4 Ultra FISR MB) about 2 months ago and that CPU same as my friends (XP 2400+) just shows 36 degrees - and my system is fine. I have a Zalman cooler and about 4 case fans - and my system in generally quite cool.
My friends HSF is a brand called Titan which has a copper based bottom plate.
Does anyone else suspect the HSF? Or is there something else on the MB I dont know about or any other ideas?
Thanks for any help.

hi
did you mount the heatsink correct?
does the cpu fan work?
you wrote about a 350w powersupply.what specs?
a q-tec 550w is barely enought for me.
do you have any temp monitor programs running that shutsdown the computer when the cpu gets to hot?
did you use heatsink paste? and how much?
you know bios 3.3 shows to much and bios 3.4 shows to little cpu temp.
xp2400+ is rated for a max operating temperature of 85 celsius
make a signature like mine.
helps alot when people are trying to help you.
bye

My macbook pro cpu temperature is too high??please tell me correct fact and information

i mistake deleting my activity.......re question...
I'm using macbook pro retina 13inch 2013 late version.
my macbook has NO external graphic card, just iris graphic.
when i was playing diablo3 or watching movie by using bypass ip address, my cpu temperature was maintained 90~100 celcius degrees.
And at the same time, my cooling fan was maintained 5800~6000 rpm.
There are two questions.
One, is my macbook temperature too high or normal level ?
Two, i know that 6200rpm is maximum speed of cooling fan. Why did fan run 5800~6000rpm, not maximum?

When processor intensive activities are taking place, temperature may reach the maximum level.
     Reset SMC.     http://support.apple.com/kb/HT3964
     Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own".

CPU temperature is too high in Solaris 10 sun fire v890 machine

Hi,
I just installed Solaris 10 on a sun fire v890 machine. I used the prtdiag -v command to check the system.
However, It appears to me that the CPU temperatures is higher than the temperature range specified in the technical specification. The server is a standalone node that does not connect to the network or process anything.
Is it a problem? Thank you.
========================= Environmental Status =========================
System Temperatures (Celsius):
Device Temperature Status
CPU0 77 OK
CPU1 76 OK
CPU2 77 OK
CPU3 74 OK
MB 28 OK
IOB 24 OK
DBP0 23 OK
Environmental
AC power      200-240 VAC, 47-63 Hz, 2078 VA
Operating temperature
* 5� C to 35� C (41� F to 95� F), 20% to 80% relative humidity, non condensing, 27� C max. wet bulb
* 2.1 GHz UltraSPARC IV+ processor: ASHRAE Class 3 (35C/900m) and/or 28C/10kft
Non operating temperature      -20� C to 60� C (-4� F to 140� F), 95% at 40� C relative humidity, non condensing
Regards,
Ryan

Hi Rukbat,
Thanks for your reply.
I have displayed the verbose prtdiag -v on the v890 machine.
However, I couldn't find the hard-coded operational ranges. Could you please advise?
Hi Sun-worshiper,
I executed the command and couldn't find the targeted temperature.
bash-3.00# prtpicl -v -c temperature-sensor | more
CPU0_DIE_TEMPERATURE_SENSOR (temperature-sensor, 8d00000e17)
:PSVC_FRU (8d00001ec9TBL)
| (8d0000124bH) |
:PSVC_PHYSICAL_DEVICE (8d00001da6TBL)
| (8d00001278H) |
:PSVC_PARENT (8d00001867TBL)
| (8d00000dadH) |
:PSVC_TS_OVERTEMP_LED (8d00001649TBL)
| (8d0000101aH) | (8d00000de3H) |
:HighShutdownThreshold 105
:HighWarningThreshold 100
:LowShutdownThreshold -15
:LowWarningThreshold -10
:Temperature 52
:FaultInformation NO_FAULT
:State OK
:_class temperature-sensor
:name CPU0_DIE_TEMPERATURE_SENSOR
CPU2_DIE_TEMPERATURE_SENSOR (temperature-sensor, 8d00000e35)
:PSVC_FRU (8d00001ed2TBL)
| (8d0000124bH) |
:PSVC_PHYSICAL_DEVICE (8d00001dafTBL)
| (8d00001287H) |
:PSVC_PARENT (8d00001870TBL)
| (8d00000dadH) |
:PSVC_TS_OVERTEMP_LED (8d00001655TBL)
| (8d0000101aH) | (8d00000de3H) |
:HighShutdownThreshold 105
:HighWarningThreshold 100
:LowShutdownThreshold -15
:LowWarningThreshold -10
:Temperature 52
:FaultInformation NO_FAULT
:State OK
:_class temperature-sensor
:name CPU2_DIE_TEMPERATURE_SENSOR
MB_AMB_TEMPERATURE_SENSOR (temperature-sensor, 8d00000e8f)
:PSVC_FRU (8d00001ef6TBL)
| (8d0000125aH) |
:PSVC_PHYSICAL_DEVICE (8d00001dcaTBL)
| (8d000012f0H) |
:PSVC_PARENT (8d0000188bTBL)
| (8d00000b34H) |
:PSVC_TS_OVERTEMP_LED (8d00001679TBL)
| (8d0000101aH) |
:HighShutdownThreshold 75
:HighWarningThreshold 70
:LowShutdownThreshold -15
:LowWarningThreshold -10
:Temperature 28
:FaultInformation NO_FAULT
:State OK
:_class temperature-sensor
:name MB_AMB_TEMPERATURE_SENSOR
IOB_AMB_TEMPERATURE_SENSOR (temperature-sensor, 8d00000e99)
:PSVC_FRU (8d00001eedTBL)
| (8d0000125fH) |
:PSVC_PHYSICAL_DEVICE (8d00001dcdTBL)
| (8d000012f0H) |
:PSVC_PARENT (8d0000188eTBL)
| (8d00000b34H) |
:PSVC_TS_OVERTEMP_LED (8d0000167cTBL)
| (8d00001014H) |
:HighShutdownThreshold 53
:HighWarningThreshold 48
:LowShutdownThreshold -15
:LowWarningThreshold -10
:Temperature 25
:FaultInformation NO_FAULT
:State OK
:_class temperature-sensor
:name IOB_AMB_TEMPERATURE_SENSOR
DBP0_AMB_TEMPERATURE_SENSOR (temperature-sensor, 8d00000ed9)
:PSVC_FRU (8d00001ef0TBL)
| (8d00001322H) |
:PSVC_PHYSICAL_DEVICE (8d00001dd0TBL)
| (8d00001304H) |
:PSVC_PARENT (8d000018afTBL)
| (8d00000eadH) |
:PSVC_TS_OVERTEMP_LED (8d0000167fTBL)
| (8d00001014H) |
:HighShutdownThreshold 55
:HighWarningThreshold 51
:LowShutdownThreshold -15
:LowWarningThreshold -10
:Temperature 26
:FaultInformation NO_FAULT
:State OK
:_class temperature-sensor
:name DBP0_AMB_TEMPERATURE_SENSOR
Regards,
Ryan
Edited by: puikeong on Mar 5, 2008 6:45 PM
Edited by: puikeong on Mar 5, 2008 6:47 PM

CPU temperature seems rather high

I have a Lenovo Thinkpad R61, and my temperature under normal load seems to stagnate around 50 degrees Celcius, which seems kind of high. When put under heavy load (compiling a kernel) it steadily rose to around 66 degrees celcius before I stopped the operation. While under heavy load, /proc/acpi/ibm/fan reported 3202, and under normal load now it reports 3125. Is it just me, or this CPU temperature kind of high? What can I do about it?
PS: Because it's a thinkpad, I can't use lm_sensors. thinkpad_acpi module takes care of such things.
Last edited by violagirl23 (2008-06-02 07:34:56)

[rant]
Hah, IME laptops = heaters.
Even my dinosaur P2 celeron lappy gets to 70C CPU under load BEFORE the BIOS turns on the fan.
I think the idea is to hold off running the cooling as long as possible so cpuidle/speedstep can allow the chip to cool before using battery to run the fan.
As for the AC adaptor heating up, this smacks of poor design, the PSU should be able to maintain full load + battery charging for at least as long as a full charge from empty takes. Anything else is cutting corners based on 'yeah but how often will THAT happen'.
If your ACPI setup is not doing what it should, power consumption + heat output will be excesive under no/low load but full load power is full load power, as there is nothing to turn off.
My attitude would be, set up acpi and speedstep then ignore the temps. If it cooks under load then the hardware cooling solution is rubbish.
Seriously though, your temps sound quite normal. Look up the specs for your CPU on processorfinder.intel.com (or the AMD equivalent) you will probably be surprised at how high the max temperatures are. As for the AC adaptor - Don't run full speed while the battery is charging? The damn thing should be designed to handle it.
Do try and keep the HDD cool if you can - it is spinning down when not used right? Modern HDDs generate a fair bit of heat themselves when running and there ain't much airflow around the disc in most laptops.
EDIT: your HDD temps look sweet.
Have you played with laptop_mode?
[/rant]
Steve.
Last edited by steve_v (2008-06-07 02:30:59)

Is 95C CPU temperature too high?

I have Intel Core 2 Duo iMac. When I use QuickTime or any other video converting software to convert video for my iPhone CPU temperature hits 95C mark. Is it too high? Should I do something about it. If yes what should I do? It is the only situation when CPU temp is so high usually it is not higher then 70C when loaded.

Hi,
thats normal that the CPU of an mobile system gets hotter, I mean your much more near the CPU then by an desktop. Thats normal that you could think the CPU gets too hot.
I have an Satellite X200 (Gamer machine) and the thing gets really hot, but thats normal since a powerful CPU is in there.
If I were you I wouldnt make any doubt about it and if youre unsure just ask some of your friends which owns a notebook. Usually they would say "yes, mine gets hot, too.."
The 100 degree means that the CPU can become such hot till it reaches 100 degree and then the machine shuts down to prevent to some damage on the CPU.
So in this case the 70 degree are okay. You (can by the way) prevent overheating when you clean your machine regurarely simply by blasting some compressed air gently through the ventilation holes of the CPU cooling system. If not then the cooling modules will be clogged from dust and start to overheat...
Greets

Why the CPU temperature is so high?

My NB Model #MB466, the CPU temperature is 40-50C under normal running and the fan is 2000rpm (I use iStat). When the CPU usage is about 80%, the temperature goes up to 70 or 80C, I can feel it, especially the bottom area of the screen, and the fan goes up to 4000rpm.
Is this normal?

My new Aluminum MacBook can get pretty hot when I play Spore or use an iTunes visualizer. The hottest I've seen (according to iStat Menus) is 194 degrees fahrenheit and 5637 rpm. I think they won't go too much farther. If something meets the system requirements, it should be fine.

Attn: ALL APPLE PORTABLE OWNERS -Macbook Pro, MacBook Air Apple portable slowdown / kernel high CPU solution

Attn: ALL APPLE PORTABLE OWNERS -MacBook Pro, MacBook Air, Mac mini slowdown kernel / high CPU use problem and solution.
YOU COULD FRY YOUR COMPUTER IF YOU DO NOT FIX THIS PROBLEM SO PLEASE READ THIS ENTIRE MESSAGE!
YOUR MAC WILL THANK YOU
Hey all.
Like many of you I've got a newer Apple portable which slows down to an unusable level for an unknown reason. In my case a 13" mid 2009 Intel MacBook Pro Core 2 duo laptop. After many failed attempts to figure out what this nutty problem is I have discovered the problem, the solution and I have solved this for my own MacBook Pro. Since this fix it has been working immediately and consistently -without issue
I am sharing this with you in hopes that you to can fix your Apple portable yourself or so you know what to tell the Apple techs so they can quickly fix your Mac from this wacky and unfortunate kernel CPU hogging problem.
User Software Symptoms :
Your Apple portable computer periodically for an unknown reason slows down making everything frustratingly slow. This happens even when running previous apps that were never a problem; things that your Mac should be able to handle easily but for some reason now it can't.
Slowdown most often happens during high CPU use such as gaming, video playback/editing, etc. or when running multiple apps (even non CPU intensive apps) at the same time.
Possible Hardware Symptoms:
Your computer is making more noise than it did previously.
Your computer occasionally makes more noise but then gets quieter.
Your computer is always extremely quiet (too quiet) even during high CPU apps -worst case scenario.
It feels hotter than it normally does. Test: After several minutes of the slowness/high kernel CPU touch the computer to feel if it's hotter than normal.
Looking at Activity Monitor (in the Utilities folder) shows the kernel_task is going bonkers eating up CPU but you have no idea why.
After trying many different things to solve this problem such as :
PR ram reset, SMC reset, fresh OS install of 10.5 and 10.6 on external hard-drives, calling and speaking to various Apple tech people who had no ideas/solutions, etc. I had no luck.
Btw, if you're having the symptoms I've decscribed above I would not run the Apple Hardware check (read below as to why). You could fry your Mac!
After much testing I found the problem :
It is my belief that "recent" Apple portable computers are using low quality internal fans which soon stop working!
Fail time period seems to be about 1.0 years to 2.5 years of use but this fail rate could vary depending on use.
First noticeable symptoms (depending on what you notice) could be computer slowdown or your fan is making more noise than it normally does. This is your fan's lubrication slowly eroding making your fan spin slower and less smooth resulting in the louder noise and slower rpm spin speed. The slower fan spin speed means less cooling is happening for your computer. The effect on your computer is that the CPU and other chips are heating up! Overheating to be more specific. When your computer's chips overheat they get wonky and screw things up. Most often this seems to have the effect of making the kernel hog CPU resulting in a frustratingly slow user experience! Heat kills computer chips and it is extremely bad for them. Extreme overheat or repeated overheating has been said to shorten the life of computer chips or in extreme cases even fry them completely!
The longer this goes on without being fixed your fan loses more lubrication and spins slower and slower cooling lesser and lesser resulting in your CPU heating up more and more possibly shortening the life of your Mac! Eventually your fan will stop completely and you could fry your chips! My fan stopped completely and my MBP was running very quietly, too quietly. Luckily I did not fry my chips because I was avoiding using high CPU apps because I knew something was wrong due to the massive slow down and wonkiness when I'd run them.
Side Note:I'm a bit concerned about all those Mac mini servers which may be using the same defective low quality fans which cannot be easily serviced by their owners as they are co-located in some server facility. One positive thing is those facilities are usually well airconditioned keeping temps low.
I suggest you do not run the Apple hardware test if you suspect your computer is overheating because the hardware test can seriously heat up your Mac! I tried running this test and my Mac got so hot I had to shut it down forcefully and I was concerned I damaged the chips. If you want to run the Apple hardware check make sure your CPU temperature is ok and that your fan works well before you run the test.
IF YOU DON'T FIX THIS PROBLEM YOU COULD FRY YOUR COMPUTER DUE TO HEAT DAMAGE!
DO NOT IGNORE THIS PROBLEM YOUR MACS LIFE MAY DEPEND ON IT!
First you need to properly diagnose this problem and see if your CPU is getting to hot and you need to see if your fans are spinning at high rpms giving proper cooling, or if they are spinning at low rpms when running high intensive apps as your CPU temp increases.
TEST IF YOUR FAN(s) IS WORKING CORRECTLY :
Unfortunately Apple does not include CPU temperature reading software nor fan rpm speed software that I am aware of.
However, There are two free ways that I know of to check your CPU tempurature and your fan speed :
One app shows fan speed, and CPU heat, etc.
One app shows fan speed, CPU heat and allows you to adjust your fan speed settings.
One app is a dashboard widget, the other is a system preference.
I suggest you download both of these to check your computer statistics.
http://www.eidac.de/?p=134
http://www.islayer.com/apps/istatpro/
http://fan-control.en.softonic.com/mac
I am not exactly sure what proper CPU temperatures are for the different Apple computers and this will change given different CPU loads.
My MBP doesn't seem to function properly with anything around 90 degrees or higher (celcius).
It seems when the fan is operating normally the CPU temp should not stay above 78 degrees even under heavy load, at least with the apps I'm running in the room temperature I'm in.
I can post back later with more specific temps under longer load, etc. but I wanted to get this post up for people to read as soon as possible so they don't fry their Macs.
If a bad fan is your problem :
THERE ARE ONLY TWO SOLUTIONS FOR THIS PROBLEM :
Fix or replace your fan so it cools the CPU and other chips properly.
I fixed my fan myself and I didn't need to buy a new one. Total cost was about $8.00 because I had to buy a #00 sized screwdriver and had it shipped to me. Price includes shipping.
On my mid 2009 model MacBook Pro fixing the fan was incredibly easy :
Before I started doing this I wasn't 100% this was the problem so I decided to try to fix my fan instead of ordering a new one and replacing it. As it turns out I didn't need a new fan, I only needed to clean the existing fan and relube it's axl so it could spin easier like when it was new. It also didn't make sense to buy a brand new fan from an Apple authorized parts reseller selling me the same low quality fan for $49.00 which would probably fail in 2 years again. Prices for new comparable fans from different manufactures range from about $15.00 USD + shipping to around $49.00 USD + shipping depending on where you order them from and what brand you get.
How to fix / replace your internal fan on a mid 2009 MacBook Pro :
Please note : I am not a hardware technician, nor expert. If you decide to fix your Mac yourself you do so at your own risk through no fault of my own. Prior to opening up your Mac you should google around and learn how to do it correctly and safely so you won't damage your Mac. For example, it is possible for you to damage your Mac by static electricity from your body. To avoid this I believe proper procedure is that you wear a 'ground strap' (around your wrist) which you clip to your Mac's metal body so your body will not excude a charge into your Mac. I believe the idea here is to keep your body's charge level and your Mac's similar. Since I do not have a ground strap and fixing/replacing the fan doesn't require touching any chips I did not wear a ground strap during my fan fix. What I did was periodically repeatedly touch the metal case of my MBP hoping that would be enough and it was. Avoid unecessary actions that can build up a static charge in you. Once I started the repair I did not walk around the room building up an electrical charge in my body. Walking on carpet can often build up a large charge in us so it is better to be avoided while working on your Mac. Certain clothing can build up static charges. Combing hair, etc. If you need to get up from your repair when you come back make sure you first touch the Mac's metal case and not anything inside.
Now that we're done with the scary paranoia, below you will find some instructions on how I fixed my MBP's internal fan
Before you begin:
Check out someone's video (not mine) on how to remove / replace the fan (but not take it apart and repair it):
http://www.youtube.com/watch?v=AghE9newvbs
Check out someone's web page (not mine) on how to replace the fan in a mid 2009 MacBook Pro:
http://www.ifixit.com/Guide/Installing-MacBook-Pro-13-Inch-Unibody-Mid-2009-Fan/ 1338/1
How to repair your mid 2009 MacBook Pro fan:
Make sure you are in a 'secure' environment. No pets, no kids running around, no drinks near the Mac, etc.
Make sure your computer is unplugged from it's power supply and turned off. NOT slept. Totally off / powered down.
1. Get a size #00 phillips screwdriver (Hobby store, Radioshack, Amazon).
2. Open up your MBP by unscrewing the bottom (yes flip it over so it's resting upsidedown). Note where each screw goes because some are different lengths. I placed each one around my MBP where they go, insuring I know their order (don't jumble them up). Note which direction your MBP is facing when it's upside down so if you spin it around while working on it you still know where the screws go.
2b. Some recommend removing the MBP's battery but I didn't do this step. You probably should, just to be safe. Follow the online instructions from the web page I listed about disconnecting the battery.
3. Unscrew the fan's 3 holding screws.
4. Unplug the fan's electrical connection (lift it straight up off the board). If you need to you can try to pry it up while you lift with a non metal/non electrical conductive object like a spudger if you have one or -perhaps a pen cap. Before you remove it, look closely at how it's attached so when you put it back on you won't wonder if you're doing it correctly. There's only one way it can go because it cannot fit 'the wrong way' but looking at it closely will make you feel more confident popping it back on when the time comes.
5. Remove the fan - it easily lifts out.
6. Take the fan apart by unscrewing it's one screw then unlatching the plastic clips which hold it together.
7. Seperate the fan blades from the housing. Lift the fan blades off of the fan housing by pulling it straight out away from the housing.
8. Clean off the dust that's gathered. A can of compressed air helps here (I didn't have one). I used a little brush from my electric shaver kit which worked well. Once you've removed all the dust from the fan and surrounding areas proceed to the next step.
9. Reapply new lubrication. You need less than 1 drop. Be sure it covers the entire fan blade axl as this is what needs to be well lubricated. Make sure there isn't excess oil that will fly around when the axl/fan spins at high rpms. I used the only oil I had which was olive oil (for cooking!) but I do not suggest this. At the time I was doing this I didn't know my fan was the problem so I wasn't even sure I was going to relube it. You should probably use something more appropriate perhaps like 3 in 1 oil. A good idea would be to call the manufatures of these little fans and ask them. Maybe a hobby store knows of good lubricants for these purposes?
DO NOT use things like WD 40 as it's not a long term lubricant or so I've read.
10. Once your fan is now clean and oiled (make sure there isn't too much oil) reassmble the fan.
Push the fan blades/axl back into the housing shaft. Give it a few spins with your finger.
Screw together the fan housing then reclip the clips.
11. Place the now reassembled fan back into your Mac and screw it in place (3 screws).
12. Reattach the fan's electrical wiring by gently pushing it into place. Make sure you've got the right end facing down before you push it in place.
13. Once your Mac's internals are clean and reassembled, place the rear cover back on your Mac and screw it in place.
14. Double check you didn't forget anything like screws, tools, etc.
15. Boot up your Mac and monitor the temperature and fan speed using those programs.
Compare the previous temps/fan speed to the current temp/fan speed.
Run a high CPU intensive app where your computer has been slowing down.
You should now have a happy Mac
If you have this problem and this solution fixed it for you please post in this thread letting me and everyone else know!
Hope that helps.

Thanks for your lengthy reminder dude, I have a similar Mac with yours. I suspect its a software fault because it happens after I upgraded to Lion, 10.7.2.

Tecra M2 - hard shutdown on high CPU (turns off with no BSOD)

Have been experiencing consistent shutdowns when CPU runs at full for a little while.
- by "shutdowns" I mean complete power cut with no blue screen of death where all is lost and the computer has to be manually restarted.
- by "high CPU" I mean when the processor locks at full usage such as when you insert a column into a large Excel sheet with errors or when you are RARing a large number of files and you open a video from the network or when you run a virus scan and registry scan at the same time.
The problem has been occurring regularly for a couple of months and I can now manufacture an occurrence with high predictability. Using the hardware monitor suite 'Everest', it seems the problem happens when the CPU temperature sits at 99 for more than a minute or so.
It happen with some but never when running from batteries - during attempts to force the error, it will not shutdown if the power cable is pulled out just before the crash point.
In many instances of the problem, there seems to be a small error message which pops up only a fraction of a second before the computer dies.
Every forum and help reference I read would suggest the problem is hardware related and that the chip or motherboard is overheating and in need of replacement. While the laptop is nearly 18 months old, I bought a new "everything but the screen and HDD" early this year and was not prepared to accept the explanation without more testing.
Kantonix Linux works fine and the boot from CD seems to tax the processor as much as the same events that are killing it for me under XP.
A few weeks back, I installed the WinXP on a second HDD in the hotswappable bay and noted the installation seems to run the computer pretty hot and it did not die during the process. No problems were experienced for while but, a few days after moving the reinstalled HDD into the primary position and having reinstalled many many applications, the error started happening again.
Last night I caught it just fractions of a second before death, pulling the power and stopping the process and allowing me to see the error message (as referred above) properly:
- first message was from "TOSHIBA Power Saver" saying "A fatal errorn has occurred x06" (not sure on the last bit)
- second message was from "THotkey.exe" saying "Cannot load powrprof.dll"
- many hundreds of instances of the second message followed.
Due to error messages, I wasn't able to get a screen print.
Any solutions or even ideas about such would be very much appreciated!
Message was edited by: DC-Financial

Hello Markus, thank you for your suggestion and apologies for the lateness of this reply (thought I was supposed to receive email notification (?!?)).
I agree with your initial assessment "sounds like software related issue" and I would hate to think it is hardware - am die hard Toshiba man! (onto my 5th in as many years) .
Anywho, I have been through all the power saver options, as well as the CPU options under the Toshiba HWSetup: the system crashes under all situations if properly encouraged.
NB: Per my understanding, one shouldn't be able to crash a Pentium M, operating within the acceptable environmental conditions and I am working in a room between 16 & 20 degrees.
It is much more difficult to crash when it has been off for a while (ie. when it is cooler) and is more difficult to crash when on batteries as opposed to AC. Tried switching the RAM during the week and after mistakenly thinking it was all fixed, the problem resurfaced again. While I had the keyboard off, I had a look at the fan and there is a bit of dust on it but not very much. I have a Tecra M3 also, which is only half the age and, compared the fans, the M2 is about twice as dusty [if it were on your dinner table you'd wipe it down but there is not so much that you would imagine it to be a problem].
I mentioned previously that I was using Everest to monitor outputs from the temperature sensors and that crashes occur when the CPU temperature sits at 99 degrees for a while. Sometimes after turning it on after a crash, Everest is not able to display the CPU temperature. Am very reluctant to believe that the heat sensor on the chip has malfunctioned as all the internals were replaced in January (as was stolen and recovered somewhat worse for the adventure).
I have had to bite the bullet and move all my work to the Tecra M3 but am not very happy with this (the M3 I have is 1.86Ghz w/ 512MB vs 2.03Ghz w/ 1536MB RAM in the M2). As I'm sure you will appreciate, the cost of the M2 has now already been spent many times over in lost work time but one needs to know if they have an error related to software or if it is hardware, so as not to live in fear of a recurrance.
I will reinstall the M2 OS as soon as the work lag is caught up again (probably later this week) but really don't know what to try other than crash testing after each piece of software is reinistalled. Note, have already run the Toshiba Hardware Diagnosis console with no errors identified.
If you have any suggestions or thoughts on what I should try they are greatly appreciated!

Combo: High CPU temperature

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