10.5.6 fixed MacBook fan problem

FYI - my MacBook (2ghz c2d, ~ 2 years old) has been running its fan at pretty near top speed regardless of its activity for several months, for no reason I was able to determine or fix. Installation of the 10.5.6 combo update fixed the problem, fan now runs silently until heat sink temperatures go above 60°C.

I went through the logs and this is all I could find with this morning's non-waking moment.
Dec 19 06:11:39 calculon kernel[0]: hibernate image path: /var/vm/sleepimage
Dec 19 06:11:39 calculon kernel[0]: sizeof(IOHibernateImageHeader) == 512
Dec 19 06:11:39 calculon kernel[0]: AirPort: Link Down on en1
Dec 19 06:11:39 calculon kernel[0]: Opened file /var/vm/sleepimage, size 2147483648, partition base 0xc805000, maxio 400000
Dec 19 06:11:39 calculon kernel[0]: hibernate image major 14, minor 2, blocksize 512, pollers 4
Dec 19 06:11:39 calculon kernel[0]: hibernateallocpages flags 00000000, gobbling 0 pages
Dec 19 06:11:41 calculon kernel[0]: AppleYukon2: 00000000,23ae7000 sky2 - HardwareNotResponding, marking offline
Dec 19 08:25:49 calculon kernel[0]: AppleYukon2: 00000000,00000000 skqueue - SkEventDispatcher - ignoring event queue, hardware is not responding

Similar Messages

Mid 2009 macbook pro battery is dead and fan is constantly ramped up (not due to heat). Would installing a new battery fix the fan problem?

Battery icon has an "x" over it and I need to have my laptop plugged in to be on. I've ordered a new battery to install, but I was wondering if it's possible that something else might be causing the fan to be on over drive constantly. I've tried resenting the SMC and the PRAM, but nothing has stopped the fans from running at higher than normal speeds.

If you've updated to Mavericks, you'll either need to use the original install DVD containing the AHT, or download the right one from Apple's servers, then replace the hidden /System/Library/CoreServices.diagnostics folder.
I think that replacing the battery is likely to stop the fan problem anyway.

Macbook fan problem?!

Hi. Just today I have had several random shutdowns. Had the Macbook for 10months now and it's been brilliant so I was a tad surprised when it started playing me up!
After a few looks on google it seems lots of people experience this problem with different reasons for it. I first thought it was the system fan as it did seem very hot but the fan hadn't kicked in. I tested the fan but I got a reading of 0rpm. SO I then ran the Hardware test and got the following error message:
4MOT/1/40000002 :Exhaust
So, I'm deffo thinking it's a fan problem and the CPU is shutting down cos of the heat. Now, I did not buy the extended warranty but I have checked with my serial number and have until Feb 2008 on the standard 12month warranty - my next step is to contact Apple to see what they will do. Does anyone know whether I am assuming correctly and if they know what Apple may do for me?!?!
Thanks

smorg99 wrote:
Would it deffo be the logic board then?
deffo?
I have no idea if it is the logic board or not. I know that Macbooks do not have many serviceable parts. To get to that fan may be a major undertaking. Typically, they want to get the unit repaired and back to the customer as soon as possible. They will swap out what they can do the fastest and diagnose and fix the actual broken part on their own time (or just toss it in the trash). But, of couse, I am just guessing.
How long would it take to replace this?!?
I have no idea.
Can't believe it - I love this notebook!!!
It is not as if you have many options. It will be a paperweight soon. They are machines and all machines break eventually. Either you have the misfortune to have one that isn't perfect or the good luck to have it break while the warranty is valid.

I HAVE FIXED THE FAN PROBLEM

Hello from Turkey. I have just bought a 3000 n200. It's a great machine.
As you all know, the fan gets higher and gets slower, gets higher and slower again and again.
IF YOU SET YOUR BATTERY OPTIONS TO ''BATTERY SAVING'' MODE
The fan will get REST . I mean the fan will work in normal speed.
Plus you will get much more battery life
Try this until Lenovo engineers fixes this small problem (probably by an bios-update)

Hello again,
Whenever i click on something (for example to windows media player, explorer new window etc.), the fan speeds up for 1 seconds and gets low again.
In this review, it's is clearly told that the fan gets up and down very often.
''The fan on this laptop, while having the ability to spin slowly, likes to quickly ramp up at the slightest temperature increase. It also has no delay, causing the fan to quickly speed up, slow down, speed up, slow down, etc. This started to drive me up the wall when some programs were running. I am hoping a BIOS fix comes around to mellow out the fan''
That is exactly what I am complain about.
The whole review can be found here:
http://www.notebookreview.com/default.asp?newsID=3749&review=Lenovo+N200

How do I fix a initializing problem with my macbook pro? I only get to the blank screen with the apple logo and the "processing something"sign... it just doesn't start the system....

How do I fix a initializing problem with my macbook pro? I only get to the blank screen with the apple logo and the "processing something" sign... it just doesn't start the system....
Please help
Marcelo

If there is no loading bar, it's usually a problem with a third party kext file in OS X itself.
You can press the power button down to force a hardware shutdown, then reboot holding the shift key down on a wired or built in keyboard, this will disable them and you go around and update your third party software.
Gray, Blue or White screen at boot, w/spinner/progress bar
Also take this time to backup your users files off the machine if possible.
Most commonly used backup methods
Sometime that won't work and you need to do more
..Step by Step to fix your Mac

2008 macbook overheating problems. SOS!

I have had macbook 2008 aluminum body since November 2008. It was a dream for two years until it started overheating & slowing down whenever I'd be browsing the internet on safari, firefox or opera with the cooling fans working overtime. It also occurs when I use a MSOffice applications, Preview, etc., leaving me with a very fancy machine with very limited use. Also, extended use of my macbook with the heating problem tends to cause it to go into sleep mode without much warning (imagine suddenly seeing a black screen & irresponsive mac in your lap!) & it has to be left to "cool off" for about 10-15 minutes before it is usable again.
I've been told it's a hardware glitch that needs to be fixed & it is also the reason why the base of the macbook to sink/curve slightly upwards. This problem is said to occur in white 2008 macbooks as well, which I came to know while discussing with a few friends of mine who own that particular model.
Any help on the matter (i.e. solutions) will be welcome. I live in Pakistan.

Hey
Try a laptop cooling stand mate, they are quite effective. Also, never use your Mac on a soft surface like a pillow or your lap. And the most important thing is to make sure there isn't anything blocking the air vents.
Run an OS X update to check for fixes.
You could also try resetting the SMC.
http://support.apple.com/kb/ht3964
That may fix your fans incase they aren't cooling properly.
Hope I helped and good luck

MacBook fan broken (computer overheats and shuts down)

I'm pretty sure my MacBook has a broken fan. I can't hear it, even when the temp is measuring upwards of 180 degrees, and Fan Control is set to run it at a minimum of 3500 RPM and reads several thousand RPM, even though the fan is off. I think it broke yesterday, but previously there had been strange clicking noises. I can run it for a while when I'm not doing anything intensive (~135°–145°), but when I run BOINC or try to play games, the CPU heats up to over 180° and it powers off in a few minutes. Does anyone else have this problem? Is the fan stuck, or did a wire come loose, or is the fan motor broken?

They should be able to fix the fan with out doing anything to the drive. They might be able to do it while you wait. I would call and talk to them about it. I personally keep a back up of my system every week and always before a repair. I also have never lost data on a repair yet. I had a fan replaced on a Powerbook and had no problems with my data.
Thanks for the .

HT3964 MacBook fan is always on

i can't fix my macbook MC374 problem with this guide... i reset my SMC but the fan is always on... any suggestions?
i have Snow Leopard 10.6.3 on that and since i update it to latest version with about 8GB download from Software Update my problem is that my fan is always on....

The fan is always on. It a question of degree. Under 'normal' or low level usage, the fan speeds will 2000 rpm. If you are pressing the CPU, the fan speeds can/will go to 6000 rpm.
Install iStat pro (from the Internet) and then you will know what is occurring inside your MBPs. Also look at the Activity Monitor (In your Utilities folder) and see if the applications you are using are in line with the internal temperatures.
Ciao.

Return for Fan Problem (aka mooing)?

Has anyone actually returned their Macbook for the fans coming on and off (or "mooing")? If so, did you get a moo-free MB?
The mooing isn't too bad - and I have hope that software could fix it; but if there are Macbooks that don't moo, man, I would like one. However, no point in going thru the process if there is no possibility of getting a moo-free MB.
Thanks.

There definitely ARE some that do not moo. Or if they do, they do it much softer. Last night I had a white one that, every 10 seconds, would moo. It was horrible. Even with my TV on, I could still hear that fan revv up and then revv right back down, then 10 seconds later the process would repeat itself. I certainly couldn't live with that. I'm a student and would surely be kicked out of class with a laptop that sounded like a zoo, lol.
So anyway, I returned it today (demanding an exchange). What got me is when I explained the moo'ing to the girl, she sounded surprised and that she'd never heard of the problem before. THEN she takes it in back for about 5 or so minutes and comes back out and persists my MacBook didn't have a fan problem. I told her the machine had to be running for about 15-20 mins before it would kick in. Well she's gets my exchange and then continues to tell me "they're supposed to do that." She said hers at home did it. She also even commented about the posts on these forums about it at that point, too. I was thinking, okay then why didn't you tell me that when I explained the problem? I have a feeling the manager told her to tell me that.
Well, I got my black one home today and have been using it for about an hour before work (while it charged), and now for almost 2 hours (running down the battery). I've only been using it lightly and my temp hasn't gotten higher than 60C even on AC power. Perhaps this is why it doesn't moo? My white last night was close to 70C (on light use) and the moo wouldn't quit.
Unfortunately, this one does whine (somewhat loud on AC power, but very very soft on battery). However, that is a non-issue because turning on bluetooth shuts it up right away, or using QuietMBP works also. Whine I can deal with, but there is no work around for the moo.
So, my advice, is yes, return these moo'ing MacBooks. Like others have said, the more returns they get back for this fan issue, the faster they will (should lol) correct it. There's no need in my eyes to sell a laptop that behaves such as some of these do. I do not pay well over a thousand dollars to have to sit in a zoo-like atmosphere. And that's exactly what I told the sales woman. A lot of times I sit in quiet and this fan noise is too loud to ignore. However, I really do believe this is tied to a heat issue, because it is clear some of these run much cooler on light use than others do. That must be why I haven't heard the fan on this one - my temp is much lower than the one I had that moo'ed.

Help on how to fix macbook pro 13inch 2010 (cpu 1 caller 0x47f5ad)?

help on how to fix macbook pro 13inch 2010
Hi, I need some peoples help on fixing my laptop. I have a macbook pro 13 inch 2010 model, and it refuses to boot into either osx or windows. Every time I prevoiusly treid to boot into mac osx I got this error "panic (cpu 1 caller 0x47f5ad)". there is an image below. and when I had treid to boot into windows (bootcamp) I got this error "A disk read error occured Press Ctrl+Alt+Del to restart". I have treid to restart the computer and gotten both these errors agian. The strange things is this deosn't always happen, sometimes I don't get any errors, and it just has the apple logo whith the spinning loading thing happening below (I left this for an hour and it still kept spinning, and never loaded). Other times it just show white whith no errors but never loads, sometime it lets me alt to select which os to boot into (nether work), but other times it just freezes and shows a mouse cursor on the white background. it's not consistent.
Most recently it has a flashing folder on a white background. I treid inserting my osx disc and went into disc utility but it doesn't detect my hardrive. It may be a faulty hardrive or sata cable but I dont know (I have links below). I was recently (well for the first time), defragmenting my windows partition, it hit temparatures of 80-85C, and stayed at that for several hours throughout the defragmentation, would this have damaged it?
I have scoured the internet and found many people whith very similar problems to me but none whith the same, and A lot of people saying that if you get the error you should just use a time machine backup, the thing is I don't have a time machine backup. The internal hardrive I am currently using on my laptop is a seagate 640gb 5400rpm (it's not an apple harddrive). every thing else it standard, standard ram and no overclocking, I was running 10.6.8 snow leopard, and windows xp profesional 32bit (split 320gb each, whith about 10gb spare on each parttion).
It would be greatly appreiciated If any one could shed some light on what I should do. I need the laptop working whithin the week (for my tafe work), but If I have to reinstall the OS's and programs it could take a long0I have a lot of programs and that could take a month. not to mention The fact that the hardrive might be completly fine and it's just a faulty sata connection. but then would I still be getting an error if thats all thats wrong?. and if it is just the error is there anyway I can fix it whitout doing a fresh install, there a error reading document blow but I cannot make heads or tails of it. I also have almost no money to afford getting it fixed.
also one last thing, I stupitidely inserted my mac osx disc 95% of the way into my macs slot loading drive when it was powered down (off). when I turned it on it sucked it in fine, but would that have caused any damage to the disc or laptop (I cannot eject the disc to check)
I have images of many of the things I described below. So any suggestions.
I have also posted this on several other websiets if that helps)
Photos
http://www.flickr.com/photos/100089102@N08/
"panic (cpu 1 caller 0x47f5ad)" error issues
http://forums.macrumors.com/showthread.php?t=1177233
http://reviews.cnet.com/8301-13727_7-10344626-263.html?tag=mfiredir
https://discussions.apple.com/thread/3256029?start=0&tstart=0
http://www.mac-forums.com/forums/switcher-hangout/258078-macbook-pro-will-not-st art-up.html
https://discussions.apple.com/thread/3965618?start=0&tstart=0
Hardrive issues
https://discussions.apple.com/thread/4225754?start=0&tstart=0
http://www.mac-forums.com/forums/other-hardware-peripherals/242064-hard-drive-no t-showing-up-disc-utility.html
How to read errors
http://developer.apple.com/library/mac/#technotes/tn2063/_index.html
other websites
http://au.answers.yahoo.com/question/index?qid=20130808212838AAYDeTk
http://forums.macrumors.com/showthread.php?p=17706929#post17706929

The problem may be that your macbook is'nt set to 'mirror image' if you go into settings, onto 'displays' there should be an option within, once youre connected, to 'mirror image' if you check this box, then the problem should be sorted, if not then maybe a dodgy cable or adapter.

Macbook Battery Problem

Hi all, this is my first post, but something weird happened to my macbook that I have to share with you.
Ok, my Macbook Core Duo 2.0GHz (1st generation) have had no problem during its first and half year. Then I left the notebook sitting at home for one month as I was away on business. Came back, the machine won't start, used AC adaptor and showed the battery not charging, "x" and everything. My warranty expired, so I bought a new battery. Once I got that, it worked fine for almost 7 months.
Another business trip left my macbook for 1 month, I came back, the battery is dead again!!! So I went to apple support and bought another new battery. This time I installed it at home, and it doesn't charge what-so-ever. I tried everything from SMU reset, PMU reset, P-RAM reset. NOTHING WORKED.
So I took a friend's macbook battery to try, and it worked! I can charge that battery with my macbook, and my battery won't charge on his macbook. So scientifically I thought its the battery defect. I went to Apple Care and they say they will replace it for me, but think that it should be my macbook's problem. Must be the Logic Board, I explained why I disagree, and that the battery came with only one LED blinking when I got home to charge, the current was already too low to charge.
Anyways, I was able to buy a second-hand battery really cheap but with limited life-span and use it until my replacement battery returns. Everything seem fine and I can charge it up to 100% although it will only last me 50-mins, still not bad, right?
I was reluctant to completely drain this battery now since I am afraid it will drop to zero and won't recharge like the other ones.
I am using Boot Camp, and Vista as well as OS X. Suddenly today, two days after I bought the 2nd hand battery, I was using Vista to show my friend the battery problem is fixed. But suddenly out of nowhere the battery dropped from 95% charged to 0% in seconds. It shuts down automatically, and the battery was flashing one LED indicating it's dying.
I started back in Mac OS X and found the charger able to recharge, but it fixed at 0% for 20 minutes. I thought I am screwed and went out for a smoke. I came back to see the battery charging back to 5% and then slowly to 10%, and 20%, suddenly it went back to 85% in seconds, and then 100%. I try to unplug it and it seemed fine. I left it on without the adapter for 20 minutes, the battery drain normally, to 70% (it's fine considering the battery was 2nd hand) My friend thought I should try to switch back to Vista to see if the same thing will occur. So I did, and before the Vista screen came up, the macbook blacked out. I checked the battery indicator and it's flashing one LED again!!!
So I switched back to Mac side and re-do the charging, this time it took longer to get back to +90%, I thought this is normal, 'cause I did use the battery longer on the Mac side before switching to Vista for the test.
I thought to myself, why Vista drained my battery, and then I remember the first battery that died on me was about the time I switched the PC side to Vista. Prior to that, the PC side was using XP. The second time it died it was in Vista as well. I also remember I wanted to reduce the size of my PC partition, so I trimmed off unnecessary features like hibernation by (Powercfg -h off). It saved 2G in size but it may be causing some problem to the charging circuit for the Mac-hardware??? Don't know for sure.
So I erased my Vista partition, and re-installed XP. Since then I tried both sides without adaptor, usually for 10-minutes or less, and no sudden dropped to 0% occurred since.
Everything else is working fine with my macbook, except the power features. Right now at least I can charge the battery, but I am always worried about when or IF the battery will dropped off and kill itself.
I am waiting for the replacement battery to return from APPLE, and hopefully when it returns, my Macbook will be able to recognize the DEFAULT low-charge of a new battery. I'm still not sure if my macbook is defective, and if it did killed the first battery replacement they gave me a few days ago. If it did kill a decent battery, will it kill this new replacement as well??
I know for a fact that the reason why the machine won't charge the battery is because the current of the battery has become too low for the machine to be able to charge it. If the current becomes lower, the "X" will occur suggesting that the machine doesn't even recognize it's a battery. But what I want to know is what caused the battery to drop to such a low current if I turned off the macbook during storage.
Sorry for the length of this post, but I have to be clear on all the details if I want help, I suppose. Right now my question is (1) Why is this occuring?? (2) Am I right in assuming that by removing Vista with XP, the problem will not repeat?? (3) Is it likely for any new or 2nd hand functioning battery to drop to the state of the other battery any time soon?? (4) Am I doing proper care for my Macbook, and what should I do in the future to avoid the same problem from occuring??

gpotts,
Thanks again, here's my battery profile: (keep in mind this is the 2nd hand battery I am profiling) BTW, something happened when I was doing this message, I left the notebook on for about 20 minutes, it dropped from +90% to 48%, macbook prompted me that the battery is running low. I plugged the adaptor and it went back to +95% within minutes...
Good thing is, I haven't seen the sudden drop to 0% ever since I removed Vista, and also I am able to charge my battery everytime I try now, no more "NOT CHARGING" or "X" indication.
Any clues??? Thanks in advance.
Battery Information:
Model Information:
Serial Number: DP-ASMB013-34cf-** <Edited by Moderator>
Manufacturer: DP
Device name: ASMB013
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0300
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 1533
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 1597
Health Information:
Cycle count: 349
Condition: Good
Battery Installed: Yes
Amperage (mA): 466
Voltage (mV): 12597
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 60
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 60
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 2
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
Charging: Yes

Help!!! Macbook fan not turning on!

Hello there!
I have a problem with my macbook fans. The fans do not turn on until the computer has been running at 80°C for 5 minutes and only then my macbook only runs at 3000 revolutions. The fans idle is 2000... I know this because I have an application from the mac app store called temp. guage and that tells me temperatures and fan speeds.
The fans to both of my brothers macbooks turn on once the computer is about 60-75°C and it turns onto 6000 revolutions and their idle is 2000 revolutions . Could it be that I have a macbook and not a macbook pro? Or could there be something wrong with my fans?
When I got the computer about 1 year ago the fans turned on a lot but I didn't have this app for various reasons but I could hear the fan turning on. I know that the fan back then was faster becaue i could heat it and when the fans now are at 3000 I can not hear it.
Could a connection be loose - I have never opened the back case but I carry the macbook a lot with my in school? Could there be so much dust on the fan that it tries to spin faster but it simply can't? Could it be the grease on the fan? can anyone help me narrow my decision? Do I need to replace my fan?
Today I was at the apple store and I did a diagnostic test. The only problem was with my speakers but I did not notice that. Point it the fans were all right in the diagnostic test but in reality the fans are not all right...
Someone please help! This is a desperate problem my computer keeps on shutting off because it gets too hot.
Category: Power
Thanks in advance!
Avranius

First thing I would try is resetting the machine SMC.
http://support.apple.com/kb/HT3964

Macbook airport problems linked to battery power?

I too have experienced the macbook/airport problem, specifically since 10.5.8 came back. When I upgraded to 10.5.8, it was so useless that I just reinstalled tiger. Then Snow leopard came out and I upgraded only to experience the same problem but not as severe.
I have just been able to pin/point the problem today (mainly because I just grew so frustrated and spent considerable time trying to figure out). I have tried all the other potential fixes posted on here to no avail (changes airport settings, replacing card, changing dynamic IP to manual, encryption etc).
This is what I have determined and was able to reproduce it:
When macbook is running on power (plugged in):
If battery power is below 60%, connection is spotty - the lower it is, the worst the problem.
If the battery power is above 60%, no problems at all, runs fast and no drops.
When macbook power is not plugged in and running on battery:
Below 60% almost useless
Above 60% spotty and worse as the battery drains
Can anyone else test this out? I've sent Apple an e-mail.

I've gone down to maybe 15% without any noticable difference in connection.

Got help fixing my youtube problem, now that is working. In the process of making the fix, lost my aol set up. Re installed it, but cannot access the icon. How do i get my AOL back?

Got help fixing my youtube problem, now that is working. In the process of making the fix, lost my aol set up. Re installed it, but cannot access the icon. How do i get my AOL back?

If it's an application, it should be in the Applications folder. If in doubt, double click on the hardrive icon to open it up, then press Command+F (find) and in the window that comes up for what you want to find, type in AOL and it should appear. You can either drag it to the Dock for easy access or make an alias of that, and drag that alias to the Dock. Oh, and just so's you know, this forum is for Desktop macs only. We may be able to answer your question about a MacBook Pro. Same kind of animal, but different breeds.
good luck
John b

How my macbooks fan works.

This is how much macbook fan works.
http://mb.neom.ca/fan.mov
I started the recording when it was mooing, and then I ran a process to max out the cpu and heat it up. As you can hear, the hotter it gets, the harder the fan spins. Once I turn off the process (you will hear a beep on the movie when the process is terminated), you can hear the fan start to spin down. About 30 seconds after the movie was done, the macbook resumed mooing, and is still mooing as I type this.
It's an interesting look at how the macbook heat management is telling the fan to work.
My macbook is a week 24 built.
Message was edited by: neom (fixed the link!)

Updated with smaller movie.

10.5.6 fixed MacBook fan problem

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