109°C (228°F) CPU temperature, fans idle @ 2k rpm!!!!!! I'M SO MAD

All people with this problem should start a new thread. Apple should fix this ****!

Same problem here (MBP5,1 [02/2009], 2.8 GHz, 4GB RAM, 320 GB 7200-HD, Boot ROM MBP51.0074.B01, SMC 1.33f8).

During CFD-simulations CPU-temp goes up to more then 106 degrees celsius and it takes approx. 5 minutes till the fan turns with around 3500-4000 rpm resulting in a stabilized CPU-temp of something around 100 degrees celsius.

This is completely inacceptable and shortens the lifetime of the CPU considerably. To remedy the problem I installed Fan Control: using 2000 rpm up to 50 degrees and 6000 rpm over 85 degrees (and linear in between) I get a stabilized CPU-temp (during simulations) of approx. 77 degrees (all in celsius). Thats' reasonable!

Hope Apple is able to solve this issue soon!!!!!!

Same problem here, fans are staying at 2000rpm constantly. I'm really mad, too. Even in OS 10.5.7 no solution for this f* problem !!

I don't know what did the trick, but the fans are now working properly! I haven't installed any fan control programs.. Is is possible that 10.5.7 fixed it? Weird, since it doesn't involve SMC firmware. Maybe it stopped the SMC corruption at sleep?

Try resetting your SMC and see if it's fixed for you... (do a restart afterwards just in case...)

Unfortunately, I cannot confirm this for my Macbook Pro 15".

Best,
Michael

I'm suffering the same problem with my 17" Unibody which I got last week. It seems to kick in only close to 100 degrees celsius and rev up to about 2.8k? And the temperature would hover in the high 90s.

Resetting SMC/PRAM doesn't do anything for me. So now I have to rely on SMCfancontrol when I use Handbrake.

Then again, what makes us so sure that the temps are indeed what they say they are?

I'm having the same problem as OP described on my 15", 2.53Ghtz MBP. Just tested and confirmed it.

Fans were maxed out at 2k RPM, I reset the SMC as described. When I booted up fans were at 3k RPM. When I loaded WoW (World of Warcraft), they went to upwards of 6k RPM and then regulated fine over 20 minutes. Closed my MBP for 30 seconds, and upon opening, they did not rise above 2k RPM.

I have had the MBP for about 3 weeks now with none of these problems until I downloaded 10.5.7. Is it possible that while fixing it on some machines it caused problems on others?

I am about to give this SMC Fan Control program a go. Hopefully that will alleviate the problem until Apple finally fixes this problem.

Has there been any word from Apple regarding this issue and a possible fix? It seems like a pretty serious issue.


Brad

Surprisingly under Vista the fans seem to be working fine when I play L4D, pretty audible. Speedfan reports the temps to be around 75~ for each core.

Also for Hardware Monitor, the individual core temps seem to be 3-5 degrees lower than the "Temperature Diode" sensor, and I'm pretty sure smcFanControl reads the "Temperature Diode" sensor.

just wanted to chime in and say I still have a problem with my 2.93ghz mbp overheating like crazy. tried all of the resets, repairing permissions and i've got smcfancontrol and it still runs hot as ****. seriously guys? also sometimes when i put my machine to sleep it will heat up like crazy, while it's asleep. *** guys?

Message was edited by: Blake Marvin

Apparently, there are some changes to AppleFan in 10.5.7 (pls. see http://www.opensource.apple.com/release/mac-os-x-1057/ for details).

BTW, http://www.opensource.apple.com/source/AppleFan/AppleFan-110.3.1/ contains well-documented code how the fans are programmed, quite interesting...

Best regards,
Michael

Blake Marvin wrote:
just wanted to chime in and say I still have a problem with my 2.93ghz mbp overheating like crazy. tried all of the resets, repairing permissions and i've got smcfancontrol and it still runs hot as ****. seriously guys? also sometimes when i put my machine to sleep it will heat up like crazy, while it's asleep. *** guys?

Message was edited by: Blake Marvin

if its waking up while asleep, make sure your not doing something to wake it up... if it is really asleep with the pulsing light, then its just purely defective and needs repair. When you use smcfancontrol and it gets hot are you manually telling it to spin up to 6000 rpm to cool it? how hot is "overheating like crazy" ??

I purchased a new MacBook Pro after I got home from Iraq in March of 2009. Almost immediately I started having problems wit the CPU temps and fans. Using the 9600M GT graphics processor while using a program like iPhoto would cause numerous problems (screen freezing, screen going black, etc) along with the increase in temps and fans. I stepped down and started utilizing the 9400M video processor and had better luck at first. Yesterday was the final straw for me - once the fans reached 3000 rpm the computer starting going crazy and making awful churning noises. I was startled - when I switched to iStat I noticed the top and bottom fans were intermittently changing rpm speeds. The lower fan would go to 0 rpms while the top fan would shoot to over 6000 rmps. The high whirring/grinding noise continued until I shut the machine down. Upon rebooting the nose started again after about 5 minutes.

I took the machine back to my local Apple store and it is being sent in for repairs. The Genius did little investigating with my machine and just offered to send it in. I don't have any experience in dealing with an Apple repair - not sure what I should expect.

Although I am in Canada I have had great service with Apple fixing faulty hardware. There is little the stores can do other than confirm there is a symptom. The genius should be able to tell you what to expect with service.

My new MBP is working great. Playing spore the fans did go up to 3000rpm+ and the behavior was reliable and the only noticeable difference was the fan sound which was quieter than my MBP 2006.

I've returned my MBP for a speaker/LCD brightness whine issue. I'll see if the replacement exhibits this same problem again.

FINGERS CROSSED.

Hello again,

Why in the world didn't Apple release an firmware update for us? The SMC Firmware-update 1.3 doesn't run on my 15" MacBook Pro Unibody 2008. I still have to use "smcFanControl" to keep it cool. 😟