Macbook CPU full load, 99 degrees celsius

On my late 2008 13" Macbook 2.4ghz when I run 2 instances of "yes > /dev/null" for 10 minutes to stress the CPU, the CPU temperature is at 99 degrees celsius even with the fans going at the maximum 6200 rpms and while using a cheap cooling pad. I took the computer to an Apple store "genius" and he thought this was normal. Is anyone else seeing temperatures like this using this stress test method? I looked at the website http://www.intelmactemp.com/ and highest full load temperature I see for this computer is 84 degrees celsius. I have noticed problems running intensive 3d games where the system slows down from high temperatures and more so under Windows XP.
This computer is 4 months out of warranty but until recently I never ran intensive programs and so never noticed the problem. What can I do about this, I feel Apple should be responsible for this.

Hi MindBrain,
Saw your post last night but didn't have immediate access to 13" MacBook (Aluminum). So I've got a 2.4GHz unit with 4GB of RAM and ran two instances of the same command in Terminal.
All information is reported via iStat Pro:
CPU Temp before test - 76 (fans at 1998 RPM)
CPU Temp @ 5 minutes into test - 96 (fans at 2001 RPM)
CPU Temp @ 10 minutes into test - 97 (fans at 3100 RPM)
CPU Temp @ 15 minutes into test - 103 (fans at 5800 RPM)
CPU Temp @ 20 minutes into test - 106 (fans at 6200 RPM)
CPU Temp @ 25 minutes into test - 108 (fans at 6200 RPM)
For thoroughness, I also opted to run the test on a brand new 13" MacBook Pro, a 2 year old white MacBook 2.2GHz and another MacBook Aluminum. It's convenience I have when surrounded by 5600+ Macs across campus. All of the other machines also reported similar numbers, breaking the 100 degree threshold between 12-13 minutes into the test.
While I do not wish to discredit that URL, in all honesty I've probably had three times the number of entries on that website (611 as of this post) come across my desk in the past year for various reasons. So I really can't see that as being a valid resource to support an argument.
Not to mention it was your decision to not purchase AppleCare on your computer within the one year window, it was also your decision to not properly ensure adequate function of your machine prior to conclusion of the one year limited warranty. There was no responsibility on behalf of Apple to obligate you to stress test the machine 4 months after the one year warranty expired.
Lastly, is the sluggishness only in Windows XP or is it occurring on the Mac side as well?

Similar Messages

Is it normal when I run a benchmark, the temperature of cpu goes to 95 degree Celsius

Is it normal when I run a benchmark, the temperature of cpu goes to 95 degree Celsius.
It is a latest Mac Pro Model, and I just bought it half month ago.
Many Thanks

Yes, that's normal. Don't do it very often or over long periods.

T60p CPU temperature over 80 degrees celsius

Hello, I installed Notebook Hardware Control and it shows a cpu temperature of 84 degrees (yes celsius!).
I can't put my notebook on my lap because it's too hot.
The fan is louder than it was in the beginning and from time to time it makes a loud noise (like when you're holding a playing card between the spokes of a bike).
The T60p gets almost always that hot, what could be the reason and how can I fix this (it still has warranty)?
Thank you for your answers.
Something additional: I'am not sure about that but it may be that the CPU gets only that hot when the power is coming from the AC adapter (my ac adapter indeed is making also some noise, it's like you could hear the power passing through, is that normal?)
Greets
Chris
PS the GPU temperature is around 90 degrees celsius as well..
Message Edited by criza on 02-21-2009 05:41 PM

Welcome to the forum!
Yes, these temperatures are very high and you should send the machine in for a checkup. The fan is likely on its way out or just badly clogged with dust.
Good luck.
Cheers,
George
In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

Hi, I'm going to buy the new MacBook AIR full loaded but I have been reading all the discussions here and look like it has so many problems. My other option is the MacBook Retina.

I am worry about these amount of problem that I just read about MBair. I want to change to apple because most of my genetic software runs very good in these computer. As I said MBP retina is my other option. I am thinking to buy a full loaded MBair. I will appreciate your comments or/and recomendations. Thanks

Keep in mind what you are reading here is a biased sample, by definition. People mainly come here because they have a problem. A user who is not experiencing any problems is very likely to have never eveh heard of these forums.
Keep in mind that Apple sells millions of laptops every year, and you have no idea how many of them do NOT have the problems you see being discussed here. And if there were truly huge numbers of dissatisfied customers, how has Apple continued to sell so many computers consistantly for so many years?

Late 17'' 2011 macbook runs at 75-80 degrees Celsius. Normal?

I have recently got a 17'' macbook pro, and have started to use it to run what should be easy programs to run. Some of which are games that this computer should handle normally. It started to really heat up, I have capped the framerate and the temperature continue to rise. I have been looking at the memory with the activity monitor. I have no idea whats normal, but out of 4Gb of memory, almost 800MB are tied up and almost the same again is being used while I have no other applications open.
This laptop should be able to handle my programs without breaking a sweat, so i would like to find out what might be causing it to spazz out when its asked to do anything more than open safari.
thank you.

I have recently got a 17'' macbook pro, and have started to use it to run what should be easy programs to run. Some of which are games that this computer should handle normally. It started to really heat up, I have capped the framerate and the temperature continue to rise. I have been looking at the memory with the activity monitor. I have no idea whats normal, but out of 4Gb of memory, almost 800MB are tied up and almost the same again is being used while I have no other applications open.
This laptop should be able to handle my programs without breaking a sweat, so i would like to find out what might be causing it to spazz out when its asked to do anything more than open safari.
thank you.

CPU REACHES 99 DEGREES CELSIUS ON 100% LOAD IS THIS NORMAL?

Hi, i have a HP ENVY 15-j171nr and evrytime i run a cpu intensive program where it puts the cpu to 100% load, My cpu temperature jumps to 99 degrees celsius and stays there. Is this normal? of could i have a bad heat sink? Intel rates the CPU (i7-4700k) to 100 degrees celsius.

Hi Sorrentino,
This is normal behavior.
-wes
I am an HP employee.

Macbook CPU throttling under full load, average temperature.

I would like to know 2 things:
1)Why does my "2.0 Ghz" macbook refuse to go beyond 1.67Ghz under full load and 57C. It simply will not go above 1.67Ghz, ever.
and
2)Where do I complain, send in feedback.
While I'm aware of certain benefits to lowering CPUclock to save battery power and avoid hardware failure at extreme ambient temperatures, I dont belive this is the case at hand. I paid for a 2Ghz laptop, not 1.67. I want my 2Ghz when I need it; under full load.

Download CoreDuo Temp at http://macbricol.free.fr/coreduotemp/
I was able to solve my throttling issues by removing the AC power and the battery, and then holding down the power button for 10 seconds or so.
I had a discussion elsewhere on this throttling issue you can follow over here: http://episteme.arstechnica.com/eve/forums/a/tpc/f/8300945231/m/713004711831

CPU only clocks up to 1.2GHz on full load

I use Boot Camp on my Late 2007 17" 2.4GHz Macbook Pro, with fresh installs of Snow Leopard and Windows 7. I've used Windows 7 to diagnose my problem. I'm using Core Temp to retrieve my CPU performance info and Prime95 to stress-test the hardware.
Definite Problem:
My CPU will not operate at any higher than 1.2GHz under full load. It idles at 800MHz at 42 degrees Celsius, and warms up to 62 degrees Celsius under full load. I expect it to operate at 2.4GHz like it once did.
Best-Guess Diagnosis:
My computer has no battery (it physically expanded beyond functional size), and I read somewhere that the computer is designed to throttle down when no battery is present in order to prevent the computer from drawing more power than is available to it via the 85 watt charger.
Best-Guess Solutions:
1) If my diagnosis is correct, replacing the battery should undo the throttling cap. This is not ideal as it is not a long-term solution (batteries can continue to explode in the future).
2) I'd like to modify my computer's configuration to release the throttling cap/force full frequency. If possible, this would be the ideal long-term solution. This may not be possible if the charger is indeed bottlenecking my CPU's performance.
I'm looking for insight into my best-guess solutions or new solutions. Thanks for taking time to check out my inquiry.

Please carefully read and do both iMac SMC and PRAM reset s, if you need to do each 2X. It also may help to restart in Safe Mode to clear some caches.

MBP 2.33GHz Core 2 Duo, CPU temp constant 90 degrees C at high load

I have a 2.33GHz Core 2 Duo MBP. Not sure which chipset, but not Santa Rosa. I'm still running 10.5.2 because I don't want to stop the process I'm running at the moment.
Anyhow, I'm running both CPUs at full load, and the program I'm running is very SSE-heavy. iStatPro reads the CPU as running at 90 degrees C with the fans running at about 3800RPM. It's been running like this for several days straight because this is the fastest compute hardware I own. I have three PC case fans pointing at the notebook, so the exterior is relatively cool, as are the other temp readings, but the CPU temp makes me nervous. Various things I've read suggest that about 85C isn't so healthy for the processor. Is that true?
I did try calling Apple Care, but they basically blew me off, suggesting I use external cooling. I could take it to the Genius bar, but that'll be a good 3 hours of my time, so I need to make sure it's worth it.
Comments?
Thanks.

See this article regarding runaway applications:
http://docs.info.apple.com/article.html?artnum=304882
and use that technique to make sure that no other heavy applications are crashing the party. There will be a number of smaller system apps and processes running; you're looking for a big hitter that you did not want.
I hear that the MBP is good for 100°C/ 212°F. I'm a little surprised that you're getting only 3800 rpm at 90°. Fans should be able to turn up to 6000 rpm. You may wish to download smcFanControl.
I use that program to increase the resting rpm from 2000 to about 2500 to give a head-start on any heat issues. At 2500, the fans are not noticeable unless I put my ear an inch from the the computer. The program also has a quick-change setting that lets you quickly bump the fan speed to the max of 6000 if things get too hot too fast.

Cpu over 100 degrees celsius

Hi
just got a new macbook, late 2008, and encoded 3 vids to play on sons ipod. Not until the 3rd one when i had everest installed, (using xp under bootcamp), that i noticed the cpu temp rise to and maintain a value around 100 degrees celsius. i have taken steps via software (smcfan and that tweaking software that goes with it) to increase fan speed uunder xp. Should i be worried that my macbook will have a shorter life span considering i had it at 100 degrees c for bout an hour? (Also, Is this a fault in my particular macbook, ie warranting a replacement?)

Hi,
My name is Harris and i am an Apple Store Genius.
100C (212 F) is the hottest that the CPU should go. Pao1250 is right in saying that it will shut down. But when it gets to the point where it will shut down, some damage may have already been done. If you encode videos and it goes to 100, that is fine. As long as you cool it down after not to long of a period of time. If it goes much more above that, bring it to one of us at the genius bar.
- Harris

93 degrees celsius CPU TEMP!! and performance is degrading

Hey Guys.
I have had my MacBook Pro for about 10 months and now my battery is at 60% health one day and then will fluctuate to 89% health the next.
Recently too, a lot of software has been hanging up and I get the rotating beach ball of doom. The machine has also been running rather unusually hotter than normal. For example I'm just watching a YouTube Video and listening to music in iTunes at the CPU reaches a heat of about 75 degrees celsius. About 5 months ago this would only occur if I was rendering or encoding files. Last night I was encoding a movie into MPEG4 and my CPU reached a whopping 93 degrees celsius!!!
I have tried resetting the Power Management control but that didn't help.
Is anyone else having similar issues?
Thanks in Advance,
Chris Hall

Hi Chris,
Oh, your battery health fluctuations might be related to the heat issue your experiencing, since lithium polymers hate heat. If your using the system plugged into it's adaptor, you can prolong the battery life by removing it, once it's fully charged. Your MBP will continue to run but remember to insert the battery before you unplug cause the system will just power down/shut down; thus lose work.
Do yourself a favor, try saving your CPU's from overheating, they're gonna die if they keep on being cooked or fried!!! I found this utility that give me more control over those internal fans, i'd advise you to tweak the default speed from the standard 2000 RPM to a more realistic 2200 RPM (anything above 3500 RPM starts becoming noisy).
Personally, I've managed to lower the processor temps from the frightening 71-75°C to a more comfortable 50°C. Give it a try and tell the rest of us what you think.
http://www.conscius.de/~eidac/software/software.html
Good luck.

Is 85-90 degrees celsius hot for a macbook pro when skyping with someone????, Is 85-90 degrees celsius hot for a macbook pro when skyping with someone????

Is 85-90 degrees celsius hot for a macbook pro when skyping with someone????, Is 85-90 degrees celsius hot for a macbook pro when skyping with someone????

For Skype Video, which uses CPU and GPU to encode and decode the video, these sound about right.
Best to place your MacBook Pro on a solid (non-cloth, fabric) surface to help heat dispurtion.

X-fi driver causes 6-8 degree celsius rise in my CPU Processor!!!

Heres the simple and short version of my problem:
I have a X-Fi Titanium Fatalty Pro Series PCI-E in an AMD Phenom 9950 Black processor, Gigibyte motherboard, with 2x 2 GB 066 Mhz sticks of OCZ ram.
When the SB driver is enabled it causes my core temperature of my processor to jump 6-8 degrees celsius. When disabled it drops immeadiately to back down to what it was before. The card is of course still in the motherboard, I have tried it in my friends computer and we get the same results. The driver is causing the core processor to jump in temperature significantly. I thought maybe it was my card so I took it back and switched it out for another, SAME THING. I switched out the motherboard, the ram and the cpu, same issues. All my drivers are up to date.
Here is the long version I sent to Creative tech support:
First off I want to say I love the way the card is built and designed and how it looks but the driver support could be much better. I have always liked creative products and have purchased mp3 players to speakers to sound cards in the past years.
That might change, I have never had more issues putting together a computer in EVER all because of this sound card. I bought put everything together and every single day I would get at least one blue screen error. I tried trouble shooting the WHOLE computer. I swapped out parts and figured it was the sound card. So I contacted tech support back in January. They tried to help me and told me what to do and I did what they said. I still had issues, so they figured it was the card itself and to see if I could swap it out at the store I bought it from or warranty it out for another. I did the first of those and tried it out and still had the issue. So I figured, well maybe its my motherboard that does not like this sound card. So I bought a new motherboard, still got the blue screen error with the sound card. I put up with the issue for sometime hoping a driver my take care of the problem. Well about 3 or 4 weeks ago a driver came out and fixed the blue screen problem ( the release notes failed to even mention such a fix in it) . There is a major problem still and the driver is at blame. My CPU processor jumps about 6 degrees celsius turning my computer into a heater when enabled. When I disabled the driver in the driver management window the temperature drops dramatically. I either want this fixed soon or I want my 49.99 back that I paid for this item.So, tech support responded back and was no help at all. Has anyone else noticed this issue and anyone have any idea around it's The only thing I can think of is that there is a major flaw in the driver design that creative has put out.

Not familiar with youp-pax. Found them on the web. Do they install like the regular creative driver pack or do I unpack and install through device manager?Also test the X-Fi in another PC with XP. Works beautifully so it must be a vista/driver incompatibility issue. I also tested the 2/28 "beta" driver. Installed and now my PC does not recognize the X-Fi card. Uninstalled these and ran driver cleaner, still no go. Will I need to remove my card, clear cmos, reboot...and then install the card, clear cmos, and reboot to recover? Or is there a simpler way?

Cpu temp 50 degrees celsius at idle.

hi, i think i need some cooling..
the temp of my cpu is over 50 degrees celcius at idle, and i am getting worried.
i have tried some coolermaster jet 4's on my system, but they have to be cranked up full throttle and still only bring it down to 50 deg celcius..
i use a high powered exhaust fan and hdd cooler collermaster cooldrive 3.
at mo i have gone back to pentium's heatsink and fan as it is actually quieter and as good as coolermaster's. but i need to get the temp down about 20 degrees!!
funny thing is at high stress the system only rises about 6 degrees, but i would like the chip to last longer than 12 months, so any ideas about some good coolers??

thought l would update this thread rather than start a new one.
I am getting idle temps of 44-46C. I suspect this is too high.
The reason this is concerning me is my fps in doom3 is only 22-25fps when running the time demo demo1.demo. I have doom3 set to 1024x768 with high quality. And l suspenct the P4 thermal monitoring is kicking in and slowing the CPU down. I have applied the ati doom fix and spent hours tweaking with cvars.
Do you think l should re-apply the thermal grease on cpu and zalman?
thanks in advance, Nicholas
PC Spec:
MS-6758 with P4 2.6GHz 800FSB (with Zalman CNPS7000A-AlCu)
2 x Corsair CMX256A-3200C2
ATI Radeon 9800 Pro (Cat 4.9)
Deer DR-400ATX (+3.3V 28A, +5V 40A, +12V 17A, -12V 0.8A, -5V 0.3A)
Creative Labs Audigy Platinum
Linksys WMP54G
IBM 120GB 180GXP
Seagate 20GB ST320410A

GTX 560 Ti scary temps on full load

I've had a N560GTX-Ti Twin Frozr II 2GD5/OC for quite a while now but I never happened to check the temperature before. So I did some benchmarks with the latest version of MSI Kombustor and it seems that the card gets very hot. The thing is, when it stays at 99% load for some time it just gets hotter and hotter. So I ran the GPU Burn-in test and it reached 95 degrees in 20-30 seconds. It was going higher but I stopped the benchmark. Then I thought I should test it with some games, maybe the benchmark stresses it too much. So I tried with GTA IV and I couldn't get it to stick at high usage but I took down some info. At 30% usage - 60 degrees, 60% - 70 degrees and after some time even at 40% usage it stayed at 70. So I fired up Racer Driver GRID(silly me, not so graphics power demanding game, right?) and at the start menu for some reason it got the card to work at full load for quite some time, and well... same results with the fans 100% of course. My room temperature is 25-30 degrees Celsius and those tests where done with both the sides of my case open. My PSU is a TG900-BZ Tagan(yeah I know 900 is overkill even for 2xGTX 560 Ti). I took a picture of the voltages and all that stuff: http://i.imgur.com/Sr8eP.jpg My motherboard is an AOpen i965Gm-IFM(worst part on my rig) [to be upgraded], CPU an Intel E6420(C2D 2.13GHz - about to be upgraded) and RAM a dual channel GEIL kit of 2GB CL 4 @ 800MHz and 1GB of some Kingston RAM same cas and frequency(I don't know the exact models though - about to be upgraded as well). I think the only reason my card isn't fried yet is because I haven't played any demanding games(since they also require a better CPU) that will stress my card.
EDIT: Also forgot to mention my screen resolution is 1366x768 @ 60Hz
EDIT2: And that I've got the 301.42 WHQL Certified drivers.

Quote
I mean, does the card stop working or maybe it shuts down the computer?
yes there is thermal protection
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Also can I stop the test with Esc or some other key like in MSI Kombustor?
yes you can press Esc to stop the test
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Something else I noticed but I forgot to mention is that in both the MSI Kombustor and GPU Shark(the one in FurMark) it says that the card's memory size is 1MB. Is that normal?
what's shown in nvidia control panel?
have you tried gpu-z too? http://www.techpowerup.com/downloads/2157/TechPowerUp_GPU-Z_v0.6.4.html

Macbook CPU full load, 99 degrees celsius

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