17" unibody: temperature/fan control buggy. again every book affected?!

i've heard that the new 17" books are also affected by the buggy smc fan control just like the 15" late 08 MBP! anyone can confirm this? so has anyone tested his new MBP (especially the 2.93GHz version) just like described in this thread?:
http://discussions.apple.com/thread.jspa?threadID=1823105&start=0&tstart=15
1. put your book to sleep and wake it up
2. start two instances of 'yes > /dev/null' in the terminal
3. check the temps and the fan speed with the istat pro widget
4. the fans won't speed up (speed stucks @ 2k rpm) and the CPU temp will reach >105°C / 221°F

samuel1 wrote:
I have seen laptops with intel cpus from every single brand have problems with temp reporting and then fan control on the book. HP, Dell, Lenovo, Apple, its everywhere! millions of models! If you panic everytime you have to adjust the fans yourself, you'll be in a panic for the rest of your laptop-using life.
Forget it and up the fans with SMC fan control!
and again, read the linked thread.
if you reset the smc, the fan control is ok. if you heat up the cpu the second time or you put your MBP to sleep and wake it up the fan control is strangely faulty! the intel cpu isn't reporting the temperature wrong!
and a very important thing i want to add: as soon as the cpu reaches ~105°C it underclocks itself! this state lasts up to 5mins until the fans slowly kick in!
Message was edited by: preller

Similar Messages

User-developed Fan Control for the S10(e)

Hello and welcome.
When you've searched the internet and found this thread, it's possible that you are an owner of a Lenovo Ideapad S10 or S10e which has a little problem with the behaviour and/or the noise of the fan. In this post you will get all the informations you need to handle this problem for yourself. It should also be the same on every S9/S9e.
Just a few comments before we begin:
This is not an official support or solution by Lenovo.
We are just normal users as you are, but we get rid of the fan and wanted to find a way to handle it. So if you want to try anything of the methods described here you have to know that you'll do all this only at your own risk. We are not responsible for any damages of your device. You should only use these methods if you know what you are doing.
Please note that this thread is only for discussing, improving, trouble shooting and perhaps extending the fan control utilities. Any general complaints about the fan problem itself should be placed in the original thread right here: http://forums.lenovo.com/lnv/board/message?board.id=IdeaPad_Netbook&thread.id=795. It already has 80+ pages (the link goes to the first page) and it is better to exclude all the fan control stuff because there it's very difficult to keep an overview.
Here you may post all of your questions, ideas/brainstorming, concerns, thanks and so on and you are really invited to participate and be an active member.
In this first part of this post I'm going to summarize all information about using a fan control utility. For any newbie it will be enough to read this post to get all necessary information. The second part does the same for developement of fan control utilities as we still have no known or working fan control utility for Linux, Mac OS X and other OSs I've forgotten - for now.
For getting started you need a S10 or S10e with an up-to-date BIOS. For the S10 it's the 90 67, for the S10e the 66.
The battery issue
Under very specific circumstances - that we haven't figured out yet - it might happen that your Lenovo S9/10(e) no longer detects the battery while using S10FanControl or S10Fan. It might occur after 2 minutes, it might occur after 2 months, it might never occur. It does not occur using Notebook Hardware Control.
It can be solved by removing the battery, waiting 10 seconds and put it back in. Then the battery is re-initialized and the detection works again.
S10FanControl - Windows
The first utility is S10FanControl created by user dresslerc. The current version is 1.0.0.1, available here: http://www.mediafire.com/file/yd5xmnrnijf/S10FanCtrl1.0.0.1.zip. After you've downloaded it you just have to extract it and start the .EXE in the "Release" folder. Here are the notes and the description dresslerc posted right here:
Everyone,
I've uploaded a version which everyone can use to test with. Remember this is still a TEST version although I think it works for the most part. It should work both on the S10/S10e.
Please install the .NET Framework 2.0 or later first.
Then click here to download the exe: http://www.mediafire.com/?jlg2enkjdxn
Once downloaded, extract the files and hit hte S10FanCtrl.Exe. Once this program launches you should be able to control the fan. Keep in mind that if you lower the fan speed then it'll take upto 30 seconds before the S10 registers the change, so be patient.
I've only tested this on the latest BIOS 59. I am sure it will work on the 57 as well but the individual speeds might not work properly on that version. Please try it out and report back.
The only issue that I heard so far is that occasionally the fan will kick in regardless if in Manual/Smart Mode. Also the temp it shows may not be accurate. If you find any other issues please let me know what they are so I can attempt to fix them.
Once we have all the kinks worked out then I will release the source.
Heres a quick Video: http://www.youtube.com/watch?v=_PKl70ZgmFg
REMEMBER: USE PROGRAM AT YOUR OWN RISK!!! I AM NOT RESPONSIBLE FOR ANY DAMAGES THIS PROGRAM MIGHT CAUSE.
Application Use:
BIOS Controlled - Fan is controlled by the BIOS
Smart Mode - Fan is controlled based on the conifguration in the options. You can set the threshold here at what temp you want the fan to kick in...
Manual - Fan is controlled manually by the slider.
If you want to have the program startup automatically, then place a shortcut of the app in the PROGRAM FILES -> STARTUP folder. Then you may want to go to the options and make the application minimize at startup.
Edit:
It seems there are some issues with the app and the S10e or previous BIOS versions. Will post a fix asap.
The source code for S10FanControl is available here: http://www.mediafire.com/?sharekey=7a3fb99d33817c08c2b435915e8821d7e04e75f6e8ebb871, written in Visual Basic .NET 2008.
S10Fan - Windows
The second utility is a tool written by user slash:
Hi guys,
Well it looks like Lenovo dropped this matter after all. Anyway, I have here another fan controller to add to the bunch. I have been using it for some time now without any problems. It is for both S10 and S10e.
What the program does is basically the same as others. The S10's fan speed is controlled according to the ACPI thermal zone temperature. By over writing the values which resides at offset 50h of the EC register at an appropriate timing, the ACPI thermal zone temperature is over ridden. The program is written in C and uses WinIo created by Sysinternals. The GUI version is available now.
It should be noted that the fan speed temperature thresholds differs with BIOS version. For 14CN67WW and 14CW90WW the fan changes speed at temperatures 60c, 65c, 70c, and 80c. Furthermore, the BIOS will automatically shutdown the S10 if the temperature reaches 90c.
The program has a fail safe mechanism that automatically disables itself if the actual ACPI thermal zone temperature goes above 85c. This allows the BIOS to regain control and the fan will work as intended by Lenovo. If the temperature drops below 85c the program will take over control again.
To run the program, you will need administrative privileges.
Known working BIOS versions: 14cn58ww, 14cn60ww, 14cn67ww, 14cn90ww
The program will work with any BIOS version as long as the BIOS uses the 50h EC register readouts to control the fan.
build 2009.05.24
Higher priorities for EC commands.
Usage: The program will run in the system tray. Double click or right click and use the menu to open the program. To determine the BIOS temperature thresholds, use the 'Setup' button. To run at boot time, place a short cut in the startup folder.
http://www.mediafire.com/file/njhz0icym2t/S10Fan.zip build 2009.05.23
Usage: S10Fan.exe
Added GUI.
build 2009.05.17
Usage: S10Fan.exe 60 65 70 80 70 75 80 85
S10Fan.exe test
The first 4 values are the BIOS temperature thresholds, the latter 4 are new thresholds that we want to over ride with. To determine the BIOS temperature thresholds, use the 'test' option.
build 2009.03.16
Usage: S10Fan.exe 70 75 80 85
-Slash
For updates and newer releases please check slash's post: http://forums.lenovo.com/lnv/board/message?board.id=IdeaPad_Netbook&view=by_date_ascending&message.i...
Notebook Hardware Control - Windows
The third utility is a profile for Notebook Hardware Control. I've adapted it from a profile for the Lenovo N500 which I've found here: http://nhc.yourcopy.de/overview/. With the manual for creating the profiles that can be found here: http://www.notebook-treff.de/board/database/hilfsprogramme-f%C3%BCr-nhc/92-how-to-create-an-acpi-fil... I was able to change the ACPI commands to work on the S10(e).
Installation and setup is divided in two steps. The program Notebook Hardware Control (NHC) is available at http://www.pbus-167.com/. Install the program, but do not start it for now. Then you need my NHCConfig utility, available here: http://forum.eeepcnews.de/download/file.php?id=1476. It detects your model number and BIOS-version via WMI and writes a proper S10(e) profile to the NHC acpi directory. The GUI is German if you have a German Windows and English if not. Additional languages can be added.
After you've extracted the ZIP-file you have to start the nhcc.exe (requires .NET Framework 2.0). At first a message appears that you use the program at your own risk. Then you can choose if you want to apply your own settings (experts) or if you just want the program to run with my defaults (newbies). In the settings window you can see your system details on the left, you can set up your thresholds in the middle and you can set the fan speed you want on the right. Then click on execute.
Now start NHC. Go to the "Settings" tab and click on "Show all NHC options and settings". Then a few more tabs appear. Go to the "ACPI" tab and check if the "ACPI Control System" is running (if everything works, the message "ACPI Control System running" will appear, otherwise it says "ACPI control system is not yet configured for this system"). Now click on "Show ACPI Control System details".
Here you can change the temperature values the fan control depends on (the settings from NHCC are the default values). On the bottom of the window you can see the "Current CPU temperature". That is the value you have to deal with. In general it has a value of around 60°C. In the middle you can see four user editable temperature values. You can leave the values as they are if everything works. The on/off values are responsible for the temperatures at which the fan starts running and stops again after cooling the device. The level values are responsible for the fan speed, for example you can set the off_level higher to let the fan run all the time at the lowest level, if the values do not fit for your device or whatever.
You can switch between NHC and BIOS control by disabling or enabling the "ACPI Control System" or by closing NHC.
Q:
A:
With every utility it is possible that it takes some time until you see an effect after you've started the program. Any failure of the programs should be no big problem because the only thing that should happen is that the BIOS controls the fan. Another issue that might occur due to the way the fan is controlled is that the fan may start running for a very short time and it looks like the fan control has lost control. The fan should stop immediately or at least after a few seconds.
Keep in mind that running the S10(e) with a fan control means that the S10(e) has to deal with higher temperatures. That could mean that the device will not last for 10 years but only 9 years (who uses a netbook so long...?). In every case you need a tool for monitoring your cpu temperature. We know that especially Core Temp 0.99.5 and Real Temp 3.00 do a very good job. That is important because the temperature values you need to set up the fan control are different from the values reported by the cpu sensor, they are between 15°C and 20°C higher. A normal temperature reported by the monitoring should be around 40°C, with the NHC default values the fan starts running at 52°C and stops at 38°C.
Q:
A:
Q:
A:
END using fan control
BEGINNING developing fan control
Controlling the S10(e)'s fan is a litte bit difficult because it looks like there is no way to control it directly. But it is possible to manipulate the temperature the BIOS fan control depends on. As long as the built-in fan control thinks that the cpu is cool enough the fan stays off. And that is exactly the point where we can attack.
The fan control depends on a field called RTMP in the memory of the embedded controller. It can be accessed via "_SB.PCI0.LPCB.EC0.ERAM", the offset of RTMP is 0x50 (hex) or 80 (dec). It is a direct I/O read/write. The complete NHC command for reading the value is: ACPI.FIELD.ReadByOffset("_SB.PCI0.LPCB.EC0.ERAM", ref value, 0x50, 8) with "value" as the variable which gets the value.
What program logic do you need? You need a timer or something else that conducts an always-refresh cycle. It sounds very easy: You read the value, manipulate it and write it back. And it is that easy, you just have to keep some things in mind.
This refresh has to be done very often. The procedure must be very thin and quick. Also the bus that is used to communicate with the EC is a problem, but since the S10e BIOS 66 it became a minor problem for me because it looks like the built-in fan control now depends on some kind of average value over the last few seconds and it doesn't really matter if one write-cycle is failing.
The read-event must be placed before the write-event. Otherwise you just read your manipulated value. The field is filled by the system regularly, so you just have to test if the read_value is different from the written_value, then you know that the field was filled with a "fresh" value. Like "if read_temperatue <> written_temperature then real_cpu_temperature = read_temperature else do nothing".
About the values you have to write back... you will have to test and play a bit. My experience is that you can select three fan levels, starting at 59°, 62° and 70° - at least with the NHC profile and my S10e it's like that. It's some trial 'n' error. My fan stays off at < 59°, but you should select a very low value for fan_off like 30°. In my opinion it switches off much faster the lower the written value is. But it's just a feeling, I haven't measured it.
Q:
A:
Q:
A:
Perhaps some users from countries with other languages than German and English can add tags for "fan", "control" and "noise".
Note from Moderator: Minor edits in title and disclaimer.
Message Edited by JaneL on 04-25-2009 02:32 PM

Great opening post Carsten!
The latest bios:
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-71252 (BIOS 66)
The FSB can be reduced from 133MHz to 100MHz using SetFSB, this also reduces the heat:
http://www13.plala.or.jp/setfsb/
clockgen = SLG8SP513V
If you add a shortcut to the startup folder the program will start at startup. Under properties you can change the target to:
"C:\Program Files\SetFSB\setfsb.exe" -s100 -b1 -cg[SLG8SP513V] -w20
So it starts with a FSB of 100Mhz, in the background, with the right clock generator, after 20 seconds.
Message Edited by quazar on 04-25-2009 05:07 AM

Fan control in notebooks

Hi all,
I am using Arch Linux since a few months, right after purchasing my new laptop, a Dell Precision M3800. Anyway I am a linux user since many years. I like very much the control that arch give to the user in terms of configuration possibility. My question is relate to fan control in notebooks. Even though I noticed this issue in my laptop now, I think similar observation holds also for other notebooks and linux distros. For fan control I use the fancontrol utility. Once properly configured, there is a min temperature value below which the cpu fan is off (default is 20 °C, I increased up to 45 °C) and a max temperature value (default is 55 °C and I placed 65 °C) above which the fan is running at full speed. The reason for the temperature limit changes is to emulate windows behavior in terms of noise and thermal handling. With a room temperature in the order of 25 °C, I get right after login a cpu temperature of about 35 °C. Then the temperature increases even in idle conditions up to the limit of 45 °C and then it is stabilized by the cpu fan. Chaning the temperature between 35 °C and 45 °C simply changes the time interval I have to wait until the cpu fan switches on and cpu temperature stabilizes with low load. The point is the the stable thermal situation produces a continuous switching of the fan state, let's say the fan is on for a few seconds every minute. The reason is that the fan switches off right after the cpu temperature falls below the value for which it turns on. Wouldn't be better to define two different temperatures for switching on and off? Let's say, fan on when temperature reaches 45 °C and off when it falls below 40 °C. Is there a way to do that with fancontrol or same other tool?
Thank you in advance.
Bye,
Luca

OP, what you're describing is called (at least in HVAC circles) hysteresis. You may be able to find some fan control scripts that support it (googling fan control + hysteresis), or just write one yourself. You can also control this behavior to some extent by adjusting fancontrol's polling behavior (the "INTERVAL" setting), but that has risks.
I think implementing hysteresis is not a particularly useful endeavor because PC temperatures can change 30 degrees or more in a few seconds when under load, which is completely unlike, say, a home thermostat where temp changes are much more gradual over time. Realistically, you should expect to always be running at least the CPU fan at some speed, and set your "turn off" temperature for it to room temperature. You can set different temperature set points for different fans, so you can have the CPU fan turning off at a lower temp, but have other fans off until the temp gets much higher.
Last edited by mwillems (2015-05-31 16:35:48)

Fan Control and Leopard

While I am happy with Leopard, it killed my Fan Control - now I face a roasting each time I use my MBP. Anyone know if this little gem will be updated for 10.5? Fan speeds of 1500rpm just don't cut it with a Core Duo.

Same here. Fan control from preferences quit working. I'd set it and when I open it back up again, it would be reset to 0. Also I don't know how I could get a -14360 rpm reading on both of my fans. Didn't know a fan could generate negative rpms...
My fix.. get the SMCfan Control and set you minimum speed for your fans... It also will give you the temperature of your computer. Works for now... I'd rather have the fan control feature back...

Temperature/fans - how hot is TOO hot?

Sorry to bring up a much-discussed topic again ... but having spent much time sifting this forum, I can't get any clear or definitive answers to the simple question: what are the acceptable temperature ranges for the Mac Pro.
My OWC-supplied Apple-approved 9 gigs of RAM is very often running at 170F/77C, (while working on media projects) according to Hardware Monitor but the fan speeds never seem to go higher than 600 RPM. This is with ambient air temperature of around 68F/20C.
OWC say 'don't worry'. Are they right??? Thanks for any answers!

My video card in my MacPro 2.66, a Radion X1900 runs hot and renders random triangles on the screen when playing WoW. I use SMC fan control (link above) to set the fans' speed up. I have to keep the Expansion Bay heat sensor below 95 degrees F in order to not have visual defects (artifacts).
This means setting the fans above 1200 rpm at times. It does get hot (90's) in southern California.
Only rarely does the Mac speed up its fans on its own. I am convinced this is a defect. Jobs has a psuedoreligeous hate thing about fans and fan noise. From the very first 128k Mac, Macs have run very hot when not in an air conditioned environment. This has caused problems with reliability. I had to open my original Mac and resoldier joints that had failed due to the heat problem. Now, with the new generation, my video card is overheating.
Message was edited by: Mr Alexander

Is it bad to use Fan Control?

So I was looking into running Boinc (donating CPU time to run science projects aka grid computing) on my computer and installed Fan Control so I turn up my fans to keep to comp cooler. I have hence been convinced that it isn't the best idea to run your CPU so high on an MBP since I didn't want to wear out the fan and/or damage any hardware near the CPU. I still have Fan Control installed. Is this okay? I have heard mixed things about manually controlling fan speeds? Should I go to the trouble of uninstalling, or can I just leave it on low settings? What settings should I put it on?
Thanks for all of your help!
And a shout out to all those students out there: Happy winter break! We made it!

There really is no need for third-party fan controls. The OS is already configured to increase fan speeds in response to higher operating temperatures. So uninstalling the software is appropriate. However, you need to return the fan configuration to its original setting(s) which is an idle speed of 2000 RPM for each fan (if your model has more than one.) Once you do that you can then uninstall the software using the uninstaller, if it has one. Otherwise, see the following:
Uninstalling Software: The Basics
Most OS X applications are completely self-contained "packages" that can be uninstalled by simply dragging the application to the Trash. Applications may create preference files that are stored in the /Home/Library/Preferences/ folder. Although they do nothing once you delete the associated application, they do take up some disk space. If you want you can look for them in the above location and delete them, too.
Some applications may install an uninstaller program that can be used to remove the application. In some cases the uninstaller may be part of the application's installer, and is invoked by clicking on a Customize button that will appear during the install process.
Some applications may install components in the /Home/Library/Applications Support/ folder. You can also check there to see if the application has created a folder. You can also delete the folder that's in the Applications Support folder. Again, they don't do anything but take up disk space once the application is trashed.
Some applications may install a startupitem or a Log In item. Startupitems are usually installed in the /Library/StartupItems/ folder and less often in the /Home/Library/StartupItems/ folder. Log In Items are set in the Accounts preferences. Open System Preferences, click on the Accounts icon, then click on the LogIn Items tab. Locate the item in the list for the application you want to remove and click on the "-" button to delete it from the list.
Some software use startup daemons or agents that are a new feature of the OS. Look for them in /Library/LaunchAgents/ and /Library/LaunchDaemons/ or in /Home/Library/LaunchAgents/.
If an application installs any other files the best way to track them down is to do a Finder search using the application name or the developer name as the search term. Unfortunately Spotlight will not look in certain folders by default. You can modify Spotlight's behavior or use a third-party search utility, Easy Find, instead. Download Easy Find at VersionTracker or MacUpdate.
Some applications install a receipt in the /Library/Receipts/ folder. Usually with the same name as the program or the developer. The item generally has a ".pkg" extension. Be sure you also delete this item as some programs use it to determine if it's already installed.
There are also several shareware utilities that can uninstall applications:
AppZapper
Automaton
Hazel
CleanApp
Yank
SuperPop
Uninstaller
Spring Cleaning
Look for them at VersionTracker or MacUpdate.
For more information visit The XLab FAQs and read the FAQ on removing software.

Fan kicks quite loudly every minute on Satellite L30

Hi,
I'm using a Satellite L30 laptop. One thing I am finding annoying is that the fan kicks in quite loudly every minute or so, then quietens down for a while. Using a temperature monitor it looks like the fan kicks in when the temperature rises above about 50, then slows down as it falls. When the temperature is below 45 the fan stops altogether which causes the temperature to quickly rise back above 50.
I want to change the power management settings so that the fan stays on quitely at lower temperatures. I have a desktop computer where it is possible to change the fan settings in the BIOS, but I can't find anything like this on the laptop. Can anyone suggest where I should look - are there any open source or shareware tools which will do this?

Maybe you should check this topic: http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=18258
The trick:
1. You need in Power Saver the performance profile, that uses performance fan control.
2. You need to make another profile (for example called Silence). In this profile you need the optimized battery fan control, the other options doesnt matter.
3. Then, you must activate the performance profile, and wait, until the fan speed raises (begins to cool down the CPU). Meanwhile the fan speed is high, you must speedily switch to the silence profile (with the Fn+F2 combination you can choose, which you want).
4. And voila, the fan rolling remains on medium (not noisy) speed so long as you turn off or hibernate the computer, and the temperature drops to 40-50 degrees.
This trick works only if you use Windows XP, because Power Saver doesn't work under Vista. (I have Satellite L30-134, BIOS number is 2.60.)
Message was edited by: Abe83

[SOLVED] Compaq 6510b fan control

Hi all !
I installed Arch a few days ago on my laptop, a HP Compaq 6510b. Almost everything is ok, but I have a little problem with my fan. I installed cpufreqd for frequency scaling, it's ok. Then I wanted a daemon to control the fan according to the temperature, so I searched in the Wiki and found a guide.
I first installed lm_sensors, and it detected no sensors but the CPU core temp sensors. I went to the lm_sensors website, and seen that it can't work on Compaq computers. No sensors, nothing but core temp returned by hwmon, no voltage... So the daemon from the guide can't be used.
So I looked in /proc/acpi, and played a little with what I found in it. There are five fans displayed in /proc/acpi/ : C3C1, C3C2, C3C3, C3C4, C3C5. They can be turned on and off, and the real and only fan will change it's speed according to the "highest" fan activated, eg :
C3C1 : speed 5 (max)
C3C2 : speed 4
C3C3 : speed 3
C3C4 : speed 2
C3C5 : speed 1 (min)
So, if I turn C3C1 and C3C3 on, the fan turns at speed 5, and when I turn C3C1 off, it falls down to speed 3. I wrote a little script and made a menu on my desktop so I can set in one click the speed of the fan. Is this normal ? Or is it just due to the Compaq hardware which is not very well understood by the kernel ? In the same way, I have a thermal zone, TZ5, which indicates the fan speed. 0 °C : fan speed < level 3, 100 °C : max speed. :-/
Sooo... Does anybody knows a fan managing daemon, which could be configured to read CPU's temp and
1. Turn on / off several fans ?
or
2. Call a script for each temp value ?
I think I could also write a script doing this, and configure cron to launch it every 10s or so. What do you think ?
Last edited by Vladislav IV (2008-06-24 10:45:53)

ibendiben wrote:stop! ho! what guide? The cpufreq daemon is not what you are looking for? Why not?
Yes, I use cpufreqd for CPU scaling, it works. But after that, I wanted to control the fan given the temperature, which is another problem. Even though I set up cpufreqd to speed up the fan when the CPU's hot, it don't satisfy me. There is more sense giving this particular job to another process, which will not be ruled by the processor scaling one.
ibendiben wrote:I don't like that, I have a Compaq myself: 6710b... but can you explain what daemon you are talking about here?
This guide : http://wiki.archlinux.org/index.php/Fan_control explains how to set up lm_sensors, then how to set up the fan controling system with pwmconfig.
The problem is that lm_sensors doesn't work on Compaq stuff (it doesn't detect any sensor but the core temp, but no fan speed, no voltage...), and the only way I can control the fan on my laptop is to turn on/off these five virtual fans. Look at the guide, it is written :
FCFANS= hwmon0/device/pwm1=hwmon0/device/fan1_input
The real problem is : if I look in the devices under hwmon0, there is no fan input ! So pwmconfig can't regulate the fan speed. That's why I looked for another solution.
Also, as I looked at the thermal zones, I found the one which is supposed to control the fan :
$ cat /proc/acpi/thermal_zone/TZ0/trip_points
critical (S5): 256 C
active[0]: 82 C: devices=C3C1
active[1]: 74 C: devices=C3C2
active[2]: 66 C: devices=C3C3
active[3]: 45 C: devices=C3C4
active[4]: 30 C: devices=C3C5
Given the critical temp (256 °C) I think it's the GPU sensor (but I think 256 °C is quite hot, even as critical, for that kind of GPU...). As you can see, it should increase the fan speed when this thermal sensor reach 30, 45, 66... But in fact, it's always < 50 °C, so the fan will keep turning slowly. Even if the CPU is at 65 °C So I thought it was not stupid to speed up the fan while looking at another thermal sensor (the CPU in my case).
I think I should also improve my script to make it look at several temperatures (CPU, GPU...) and adjust the fan speed to keep cool every component.
ibendiben wrote:Does every laptop (mine?) have several fans? The reason I'm interested is that my fan is blowing like hell and I can feel parts of the bottom are quite hot. So only when I use cpufreq scaling powersave to 1ghz the fan will rest in peace.
You're script is interesting and I could go and test it, but I'd like to know a little more first.
There are one or two fans, even three for the more powerful ones (with dedicated gaming 3D card), but in my case (6510b) there is only one. One physical, but under /proc/acpi/fan there are five fans, which correspond to the five speeds of the laptop's fan.
You can always install lm_sensors and a ressources monitor (I use gkrellm) to keep an eye open on all the temperatures and CPU usage. Then go under /proc/acpi/fan, and if you have four or five fans (like C3C1, C3C2, ..., C3C5), you can turn them on, one at a time, from the last to the first. You should hear your laptop's fan speed increase as you activate the different levels.
Oh, and as I said, in my case the thermal zone TZ5 is the fan speed. So don't panic if you see a thermal sensor going from 0 °C to 100 °C while you play with the fan

Fan Control, firmware restore

I recently installed Lobotomo Software's Fan Control 1.2, but have since read (and seen) that it apparently modifies firmware to disable SpeedStep - with the result that the MBP no longer modifies fan speed once I uninstall Fan Control, while CPU speed remains constant at 2.2 GHz even when the AC adapter is plugged out & 'energy saving' selected.
First I tried the uninstall procedure on www.lobotomo.com (delete files, reset SMC). No success. Then I tried the Fw Restore CD (1.6 and 1.7), but neither seems to work. I've followed the instructions on Apple's FW Restore page, but the MBP doesn't behave the way they say it would - the sleep LED blinks rapidly, followed by the long beep, but even with the Fw Restore CD inserted it just boots as normal.
The Fw version is MBP31.0070.B07. Was I just using the wrong Fw CD? Is there anything newer than 1.7 anyway? Is there another way to reset the Fw, or remove Fan Control's modifications?
Any help would be much appreciated.

Right. Gathered as much from researching the problem, but thanks, will keep this in mind for the future.
Anyway, to update the fan speed issue - apparently it did not mess with SpeedStep, at any rate not the part of it that controls CPU speed (checked via MiniStat). But fans still won't kick in without Fan Control (which I'd really hate to have to install again, seeing how miserably it seems to work).
I've been monitoring fan speed for the past hour or so, and installed SMC Fan Control as a stop-gap, but apparently when left at default (2000 rpm) fans won't kick in until CPU temp is in the high 70's C. I started a couple of CPU-intensive (Parallels, Photoshop) apps just to check, and got a growl note (presumably from SMC Fan Control) telling me the Mac was too hot and that I needed to close some apps), at which point I chickened out and used SMC to bring the fans to 4000 rpm...
Is such behaviour normal? I mean, does the system generally wait for the temperature to get that high before spinning the fans up? Have I screwed up my MPB beyond repair?

MBP overheating, fan control apps not working

Hi, everyone.
I know there are tons of threads out there about MBPs overheating. I've read most of them, but I couldn't find one with my specific problem, so I'm posting.
I have a 13" unibody MBP I got in late 2009, running OSX 10.6.8. It has been reaching high temperatures (70+ degrees celsius) for about half a year. I installed smcFanControl and have been running my fan at high speed (6000+ rpm) consistently. It's noisy but it keeps my laptop cool, so I don't mind.
A couple of days ago my fan started making awful whining noises. I figured something was obstructing the blades, since my laptop does get pretty dusty in the places I use it. I'm planning to open it up and clean it out (with compressed air) once I get the time, because I figure it must be pretty dirty inside.
Now I have another problem, though. smcFanControl has stopped working: even though I set the fans to run at 6000+ rpm as usual, they are only running at at most 2000 rpm. I tried another app (Fan Control) and it doesn't work either. It's like the fan system management has stopped responding to the apps, or to the temperature of the laptop.
This means my laptop is getting frighteningly hot. It's reached 93 degrees celsius about fifteen minutes ago. Right now I'm not doing anything but typing this, I don't have any programs but Chrome and a word editor open in the background, and it's at 78.2 degrees celsius…but the fan is still running at only 811 rpm. I can't get it to go any higher with my fan control apps. I can barely feel the exhaust coming out of the back. Here's a screenshot: http://i.imgur.com/5nTBq.png
Is it possible this problem could be caused by a dusty fan, something obstructing the fan, obstructing the cooling passages in the laptop, etc? If so, will cleaning the laptop fix it? I don't know what else to do.
Thanks in advance for any advice.

The Apple Store genius bar will clean it for free. Since you got it in late 2009, it's about that time to get your fan checked out.

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

this is a issue since the new MBPs were released. as soon as the CPU temp reaches ~55°C the fans start slowly from 2000 to 6200rpm if the CPU is on maximum usage. this is absolutely ok. BUT, if you put your MBP to sleep, log out or change the GPU, something happens to the fan control! the next time you maxing out your CPU power, the CPU heats up to 109°C and the fans keep running at 2000rpm if you reset your smc everything is fine until you put your MBP to sleep (...) again. seriously, what is this apple? this is so so unbelievably pathetic!
the newest "placebo smc update" didn't change anything! it changed not even one thing what it promised, LOL! stop messing around apple and do* something!
temperature issue
15% more cpu usage if you play music over the integrated speakers
display flickering with battery power, between 1-4 brightness
trackpad which won't recognize your finger at the border
....

Michael Flynn wrote:
Did you try to reset the SMC, I had a similar issue where my brand new MBP's temps were increasing but the fan speed didn't move beyond 2k. Once I reset the SMC all was well. Additionall download SMCFanControl This handy little app will let you manually adjust the fan speeds. Depending on what I'm working on, I'll default the speeds to 2.5k or 3k (or faster if I'm working on an intensive task)
hm read my post again please.
never mind... ok this is important for me, so i will try to explain this again:
1. on the first boot ever, everything is fine. the temps won't outreach the 80°C mark because the fans speed up properly.
2. after a log out, sleep, GPU change and maybe (i didn't tested it) a restart/shutdown the fan control is FAULTY.
3. the fans speed up VERY slow! the CPU reaches almost _110°C /230°F_! it keeps this temperature for ~2-3 minutes! then the fans slowly kick in and regulate the temperature between 85-91°C @ 4800rpm.
4. so, if i reset the SMC i'll start again at 1. -> the fans work properly! BUT if i close my mac and open it again, maybe just 1min later, the fan control is faulty again... (2.)
btw: i get this crazy temperatures only with programms that stress the CPU, i don't want to know what happens if i activate the 9600m GT an stress it synchrounus with the CPU... (spoiler: nuclear meltdown)
and no, i won't install a app which regulates my temperatures. i don't want to swallow all this pathetic bugs that apple dishes me... i want finally a solution!
so i think, this is more understandable, at least it's written in a better english then in my first post...
lastly, here's a screenshot:
http://www.abload.de/img/picture274xc.png

After backing up my phone to the new iphone 4S, voice control comes on every time I try to use siri?

After backing up my phone to the new iphone 4S, voice control comes on every time I try to use siri? I have to newest itunes so what should I do? I completley can not use Siri

Some advice from various locations on the web (use google). Each works for some users, not all. Give these a try.
Try to deauthorize the computer then authorize it.
select song or app. that's not authorized, itunes will ask for your password, enter password, click ok, and ok again. Done.
I had the same problem when I switched from my laptop to a macbook. What I figured out was that I had purchased applications under two different email addresses. You can click on one of the applications that is not syncing and go to "File" then "Get Info" to find out what email address you used to purchase those applications. Hopefully this helps.
Sometimes a reboot of either the computer or the iPhone or both fixes this, if you’ve authorized already.

In my macbook pro 15 inch mid 2012 model, my cpu and gpu will get very hot, when gaming or rendering sometimes over 200F. The fans only spin at max about 2900 rpm, when their max is 6400. I downloaded a fan control app, but how can i fix it?

In my macbook pro 15 inch mid 2012 model, my cpu and gpu will get very hot, when gaming or rendering sometimes over 200F. The fans only spin at max about 2900 rpm, when their max is 6400. I downloaded a fan control app, but how can i fix it?

Hi rhaughan,
I see that you have concerns about your operating temperature of your computer while using resource-heavy applications such as gaming applications. I have an article that will address some of the concerns you have mentioned:
Mac notebooks: Operating temperature - Apple Support
http://support.apple.com/en-is/HT201640
While there are third-party utilities that measure the temperature of a notebook computer, it is important to understand that these utilities are not measuring the external case temperature. The actual case temperature is much lower. Never use third-party applications to diagnose possible hardware issues—instead, contact Apple or go to an Apple Retail Store or Apple Authorized Service Provider.
You should also see this article for even further information about your fans:
Learn about the fans in your Mac - Apple Support
http://support.apple.com/en-is/HT202179
Thanks for being a part of the Apple Support Communities!
Cheers,
Braden

How can I DISABLE the pop up 'Would you like to copy it to Library', preventing this message from bothering for each and every book, again and again, time after time? (Windows 7 64bit US).

How can I DISABLE the pop up 'Would you like to copy it to Library', preventing this message from bothering for each and every book, again and again , time after time? (Windows 7 64bit US).
I guess this may be a feature request. Adobe may think this is a good message for every new eBook.
I sure would like to decide about that myself.
Thanks in advance if this will be changed.

singmk wrote:
Decided to setup the mail for exchange on my N8 so I could see my work emails. Worked like a charm but after a couple of hours decided I didn't like being that contactable so deleted the mailbox.
Now to the problem, during setup I was forced to enable the phone lock and had to pick a 7 digit alphanumeric code. Fair enough I thought and went ahead. When I removed the mailbox however the lock remained in place with the default auto time of 30 minutes. When I checked in Phone management there is no option to disable this lock so I thought I could at least change the default time to something bigger but when you try, it remains at 30 mins. You also can't disable the auto time as it pops up an error message saying can't unlock phone.
Does anyone know if I'm missing something obvious here or is this something which can't be disabled once it's switched on? I've done a soft reset back to factory settings with no luck and the only other thing I can think of is re installing the firmware which seems a bit extreme.
Would like to hope there is some way to have control over this. Can someone help?
Which firmware your N8 having now? You can check firmware by choosing Call, then type *#0000#.
My N8 works fine on security setting and able to define Phone auto lock period, by choosing Menu>Settings>Phone>Phone management>Security settings>Phone and SIM card>Phone auto lock period>User defined>Lock after(minutes)
You will prompt to enter Lock code each time u define auto lock priod or enable/disable auto lock.
Hope this can help you.
If you find this post helpful, please show your appreciation by clicking the Kudos star at the left. If it provides you the solution, please click on the GREEN Accept as Solution button at below

IdeaPad S12 - fan control

hello,
I'm the proud owner of a S12.
I've got the same problem as a lot of people with the S10: the loud fan. It's just running after a while and not switching off again. Is there anybody out there who could fix this problem with a little prog or using nhc as some did with the S10.
The programs from this forum for the S10 don't work on the S12.
Thanx a lot!!!

Hi, sorry no good news ...due S12 differences ... its not possible to control fan via NHC/NHC control for S10 got to work for the S12 ....as in this post Carsten says
No S12 Fan Control and other programs didnt work at all...
sincerely KalvinKlein
Thinkies 2x X200s/X301 8GB 256GB SSD @ Win 7 64
Ideas Centre A520 ,Yoga 2 256GB SSD,Yoga 2 tablet @ Win 8.1

17" unibody: temperature/fan control buggy. again every book affected?!

Similar Messages

Maybe you are looking for