Case fans control?

hi,
Is it possible to control case fans (by changing pwm) under linux?
e.g. I have Zyxel 310 Nas and i can change fan speed by put number between 0-255 to specific file, like
echo 180 > /sys/class/i2c-adapter/i2c-0/0-002e/pwm1
I want to write a bash script to control fans in dependence on actual temperature. e.g. Turn on a side fan when temperature on graphics card goes over 60*C. Or turn off all case fans when my PC is on idle - just powered on.
So i will be very happy if i can do some similar as at my zyxel. My mobo is Asrock Extreme4 970.

See https://wiki.archlinux.org/index.php/Fan_speed_control

Similar Messages

Z87 Gaming Boards - Questions regarding fan control / soundblaster cinema...

Hello everyone,
I'm thinking about switching to MSI Z87-G45 Gaming (currently using Asus Gene-Z V), however there are three issues that I've been unable to find information on:
1) Fan Control
The new msi boards seem to have new bios fan control which enables you to set a low temperature and corresponding fan speed, aswell as high temperature which marks the temp when the fan will reach 100% speed. However I've read that this is only available for the CPU_FAN1 header and not CASE_FANX or even CPU_FAN2 (if available). Is that true?
2)Audio Solution
The middle boards seem to feature Realtek 1150 in combination with the software solution Soundblaster Cinema (Xpower as X-Fi MB3). Now the soundblaster cinema really confuses me, is it better than the X-FI MB2 (thats the software solution of the asus Z77 rog boards)? Does it have the "soundblaster console" in addition to thx true studio pro or is it just the thx utility etc.?
3) VGA Boost in combination with msi graphics cards
What exactly does this do? It says that it automatically increases the power target, but is that useful if you also use msi afterburner?
Thanks.

Thanks for info, I ordered a G45-Gaming today and let's see how it works out.
Quote from: Joiis on 20-June-13, 02:51:13
Can you control 3 pin fans with this board?
BTW first post here :-)
I can update you on this issue once I get everyone up and running, however generally msi had the following setup:
CPU_FAN headers -> pwm control (and sometimes voltage too)
CASE_FAN headers -> voltage control only (= 3 PIN fan)
The "old" case fan control sucked though since you could only set a range from 60% to 100% on the fans whereas for cpu fans you could set 0 to 100%. Also the minimum temperatur for case fans was 40° which in makes case (case temp never rose above 35°) made case fan control pretty much useless.

Cant see or control case fans on MSI board

I just upgraded my PC to Devils Canyon and h87-g41 pc mate. Everything is working fine... except i cant see my installed case fans and they are running on max (i assume) and making a lot of noise.
The very old board i upgraded from had option in bios for automatic fan control under overclocking (if i remember correctly). I set it to automatic and case fans were controled based on temperatures.
But the new msi board cant detect them correctly. SPeedfan and cpuid hwmonitor does not show them, and they are not show in bios. And i cant seem to find any settings for case fans.
Only fan it detects is the aux fan at the back of the fan and controls it automatically.
I used Live Updater and did total install, so i should have all the drivers.
I plugged them in right, used the pins and not the molex.

Quote from: valgusepoiss on 20-July-14, 13:15:48
I just upgraded my PC to Devils Canyon and h87-g41 pc mate. Everything is working fine... except i cant see my installed case fans and they are running on max (i assume) and making a lot of noise.
The very old board i upgraded from had option in bios for automatic fan control under overclocking (if i remember correctly). I set it to automatic and case fans were controled based on temperatures.
But the new msi board cant detect them correctly. SPeedfan and cpuid hwmonitor does not show them, and they are not show in bios. And i cant seem to find any settings for case fans.
Only fan it detects is the aux fan at the back of the fan and controls it automatically.
I used Live Updater and did total install, so i should have all the drivers.
I plugged them in right, used the pins and not the molex.
On your board, CPUfan1, CPUfan2, and Sysfan1, are the only fan headers that are setup for sensing, the other two are 3 pin headers and very likely have no sensor on them.... as far as BIOS or any software are concerned, they simply are not there, if you need them controlled, you might have to buy a fan controller.
You could plug one of your case fans into CPUfan2, if that header is not being used, and then you would have full sensing and control of 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?

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

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

Does using a program like fan control damage my mbp?

I heard good things about this program so I downloaded it and it cools off the machine wonderfully. However, I was wondering if it caused damage to the machine as the fans are running at about 3 times what they ran before? Does anyone know anything about this? Thanks.

I would hazard a guess that if it did have anything to do with the failure of the hardware in any way, the manufacturer would void your warranty. Any repair needed would be chargeable.
Mac OS X, Boot Camp and the EFI firmware all have system settings created by the manufacturer. Using a program which alters their recommended settings or changes the behaviour of hardware devices within the machine, goes against the terms of the warranty.
I would ask Apple about Fan Control and get them to confirm that any damage which may be caused (or may not be caused) by a third party program willl not void your warranty.
In some respects, it's like overclocking a PC. Whilst it may be more beneficial to the system and provide better performance, the maufacturer of the computer can not be expected to repair something which has been damaged by the end user 'tweaking' settings to get better performance.
In the case of Fan Control, I have not used it so can not refer to the licence terms, the liability of possible damage done to the machine by using this program will either be at the end users own responsibility or the manufacturer of the software. This should be checked prior to installing and using the program.
I would suggest any program which alters the running of the machine will invalidate your warranty in the event of hardware failure.

848P Neo-LS Fan Control

As said - no control of the damn fans (Case/CPU) on my 848P Neo-LS. On the CoreCenter the button lits up on mouseover, but when pressed, nothin' happens (as said in manual, press to toggle user/auto modes for fan control).
Also CoreCenter doesn't show the Case fan's speed, but Northbridge (NB fan) fan's speed, which is obviously 0. Also NB temp is N/A. Also +12V is N/A. Also the FSB stays always at 101 Mhz, not 100. No overclocking done.
Today upgraded the CoreCenter to the most recent vers (1.7.0.0.), and the button doesn't lit up anymore...?
When I installed SpeedFan 4.17, it allows me to control the Case fan's speed from 2300 - 2700, but nothing more. Interesting.
CPU - Celeron 2.0
RAM - 256 MB Kingston
CPU Fan - OEM intel fan A80856-003
Case Fan - MJ 802512
Both fans with speed sensors, of course.
Should I update the bios?
Help somebody!

To be sure I opened the case and stopped the fans by hand (I don't use the corecenter prg - piece of crap), to see that i have mistaken both fans (in SpeedFan prg). The one who varies by 400 rpm is the Cpu fan.
Doooh.
The bios health screen doesn't show +12V at all - just aint there...
The MSI tech support sez - flash the bios, and if anything doesnt change, the CoreCell chip has gone (faulty, whatever).
Flashed the bios (1.0 - 1.9 now). No changes.

Proper Fan-Control by Lenovo?

Hello Everyone,
two weeks have passed since i got my Thinkpad L530 and for the most part i am happy with it. But there is one issue which gets on my nerves:
- the absolute annoying pulsing of the fan !!!
For me one of the most important reasons to buy this laptop were the good test-results about noise-emission and battery-duration, because i use this laptop for work. Therefore annoying fan-sounds are unacceptable.
To solve this issue i have comb through serveral forum-threads and finally found a solution for my Win7-OS with TPFanControl. But i also use Xubuntu and on linux there are currently no working fan-applications for the SL- / L- and some E-Series
What i have read about i'm not the only one with that problem and that issue seems known for ages....so my question is:
- WHY do we still have to use third-party programs to get this problem solved, with the risk of breaking our hardware? Is it that hard for lenovo to offer a proper fan-control for their devices?
Greetings, Christian W.

ArchSoarer: thanks. This thread is almost a zombie, but I have tried your "acpi_osi=Linux" boot command. It does make the fan operate correctly EXCEPT where one suspends or hibernates, in which case I still get fan problems. I have outlined the situation here on our wiki: http://wiki.archlinux.org/index.php/Tos … llite_L300 and have a link there to an attempt to fix the issue by disassembling the DSDT. I have yet to go any further and attempt to fix the DSDT errors in this laptop. For the moment, because Arch boot quite quickly I simply do not use hibernate or suspend on that laptop.

K9a2 plat. v2. unable to change speed on my case fan

Hi!
I just bough a 80mm case fan and I can't change it's speed using the BIOS or from within the OS using speedfan.
The fan in question is a Zalman ZM-F1 with a 3 pin connector.
The motherboard can detect the fan speed. (3000rpm, so it's registering it correctly) but I have so far been unable to change it's speed. I can't figure out why, since i have a 120mm no-name fan which it detects changes speed just fine.
The 120mm is connected to sysfan 1 (works)
The 80mm zm-f1 is connected to sysfan2 (doesn't work)
I know that I can use a connector to the psu to perma-run the fan in silent mode, but the thing is that i want to be able to control the fan from BIOS (and OS). I can't figure out why i cant control the speed since the bios is able to detect it Could this be a BIOS issue?
I've been trying to find something about this issue for myself but this is all i've managed to come up with so far :
In this link it's mentioned that some motherboards can't monitor the fan speeds. I'm however able to see the fan speed.. so why can't it be changed? hmm..
http://www.quietpcusa.com/Zalman-80mm-Quiet-Computer-Fan-with-3-Pin-Connector-ZM-F1-P73C6.aspx
I hope that some of you might be able to shed some light over the situation. I'm at a loss here.
Best wishes
/Cawanga
K9A2 PLATINUM V2
BIOS ver. 1.5
AMD Phenom 9750 2640MHZ@220 FSB
Corsair 2x2048-6400
ATI 3850 CF
Corsair 740w PSU
Maxtor 6L300S0 300GB, Western Digital WD2000JD 200 GB, Samsung HD103UJ 1TB
Lite-On LTR-48246S CDRW, NEC ND-3500AG DVDRW
Win XP Pro 32-bit SP3

As you can see in BIOS (H/W Monitor) the only Fan Header that allows fan regulation is SYSFan1. I am afraid there is not much you can do besides:
Quote
I know that I can use a connector to the psu to perma-run the fan in silent mode,

Fan control questions

Hi
I have a mid 2008 2.8Ghz iMac with the stock 320 Gb HD and 4 Gb ram. It runs fine but I am worried about how hot the case gets at times, in particular the top left corner. I have iStat widget installed too which shows what I think are reasonable temps most of the time, but sometimes even after just everyday use (browsing etc...) some of the temps seem high (power supply is presently at 75c). The fan speeds don't seem to increase much at all from the factory minimums. I know about smc fan control and iMac fan control, but I have a couple of questions before I decide to use them.
1. Do you think I need to be worried about this?
2. What damage could I cause by running the fans harder?
3. If I use these utilities to push the fans harder than Apple recommends, will I void my Apple Care?
Looking forward to your answers
Paul

An utility like smcFanControl only changes the minimum fan speed setting. You are still running the fans well below its maximum capability. So the change is to the low end of the speed range, not the high end. You CAN set it high enough so that the minimum fan speed sounds like a small vacuum cleaner, but I would not set it that way for any length of time. I just tried it once to see what it sounded like with the fans running at a high speed (never heard them before). There is a max possible setting, so you can't set it to a crazy high number.
I use smcFanControl and have the fans set about 25% higher than the default speed. I still can't even hear them at that setting, so I figured I wasn't doing any harm and it may help my iMac run cooler (not that noticed any issues with heat).
I can't see how it would void AppleCare. Unless you set it to sound like a vacuum cleaner all the time (which would be really annoying), you are running the fans well within their normal operating range.
Note: The adjusted minimum fan speed is only in effect while smcFanControl is running in the background. It does not change any system or hardware settings. To go back to the default settings, just quit smcFanControl.

Fan control reset

hi how are you all i installed fan control and i forgot whats the factory fan settings as i have played around with it as aim a newbe to osx i have a macbook pro 13 i5 it wuold be great help if someone told the def seetings thank you

"remove the fan control program you installed."
And then reset the SMC, which will restore the default fan settings, in case simply removing Fan Control doesn't do it.
http://support.apple.com/kb/HT3964

Case Fan Running at Full Speed

I accidentally shorted the case fan circuitry on my HP motherboard (explanation below) and now the fan runs at full speed all the time. Other than the fact that is was a stupid thing to do, will it be a problem long-term and should I try to reset the fan speed switch?
(Long Version) It is hot around here these days and my computer fans seemed underpowered. I put a splitter on the case fan outlet on the motherboard and added a second fan in addition to the original fan. It all worked fine except the new fan seemed to run pretty slow. I wanted to get a voltage reading from the fan plug but I accidently touched the two sensors on my volt meter and the computer immediately shut down. It started up and worked fine except the throttle was no longer working and the fans were running at full speed. This also explained why the second fan was running slowly before when they were both being throttled.
I guess in the end I got my wish to have my fans running at full power, I just wanted to see if there will be any future problems leaving it this way.
This question was solved.
View Solution.

Hello design_guy,
You should not have any problems with the fans running at full speed other than the fact you may decrease the life cycle of the fan.
You may want to install some software on the computer that will allow you to adjust the fan speed from the computer which may help you prolong the life of the fans and give you a little control over them.
Something like SpeedFan should do the trick.
If I have helped you in any way click the Kudos button to say Thanks.
The community works together, click Accept as Solution on the post that solves your issue for other members of the community to benefit from the solution.
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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.

Dell Vostro 3560 CPU Fan Control Tips

I'm in the process of configuring my brand new Vostro 3560 and one of the things I noticed was that the CPU fan was blasting full speed all the time even when the machine was idle. After some researching I came up with the following solution using i8kmon and I'll post it here for others:
Disclaimer 1: In this configuration, you will be setting up thresholds on what fan speeds are used at a specific temperature. If you use this config, this assumes that your machine is a) reporting the correct temperature and b) the fan speed setting works for your specs. Always monitor your laptop and change the configuration if your laptop feels too hot.
Disclaimer 2: I've only had this laptop for a couple of days now, so no long-term stress testing has been performed in this configuration.
This is a link that helped me a lot. It's Ubuntu specific, so be aware of the differences: https://answers.launchpad.net/ubuntu/+s … ion/204193.
Please post any thoughts or feel free to correct me where applicable:
Install the following packages:
i8kmon
i8kutils
Create/modify the following config files:
/etc/modules-load.d/i8k.conf
# Load Dell Fan Speed Control (i8k) at boot
i8k
/etc/conf.d/i8kmon. Please note that there are conflicting values reported when you Google this. In my case, the following worked:
# Arguments to be passed to the i8kmon daemon
I8KMON_ARGS="--nouserconfig --daemon"
/etc/rc.conf. Add i8kmon to your DAEMONS:
DAEMONS=(hwclock ... i8kmon ...)
/etc/i8kutils/i8kmon.conf
This is the file where you set the temperature thresholds and fan speeds in the "set config" values. Your specific laptop configuration could be different, so Google around.
Lines changed:
set config(daemon) 1
set config(auto) 1
set config(timeout) 2
set config(0) {{- 0} -1 55 -1 55}
set config(1) {{- 1} 45 60 45 60}
set config(2) {{- 2} 55 125 55 125}
set config(3) {{- 2} 70 128 70 128}
Entire listing:
# Sample i8kmon configuration file (/etc/i8kmon, ~/.i8kmon).
# Kernel I8K status file
set config(proc_i8k) /proc/i8k
# Kernel APM status file
set config(proc_apm) /proc/apm
# Kernel ACPI status file
set config(proc_acpi) /proc/acpi/ac_adapter/0/status
# External program to control the fans
set config(i8kfan) /usr/bin/i8kfan
# Applet geometry, override with --geometry option
set config(geometry) {}
# Run as daemon, override with --daemon option
set config(daemon) 1
# Automatic fan control, override with --auto option
set config(auto) 1
# Report status on stdout, override with --verbose option
set config(verbose) 0
# Status check timeout (seconds), override with --timeout option
set config(timeout) 2
# Temperature display unit (C/F), override with --unit option
set config(unit) C
# Temperature threshold at which the temperature is displayed in red
set config(t_high) 80
# Minimum expected fan speed
set config(min_speed) 1800
# Temperature thresholds: {fan_speeds low_ac high_ac low_batt high_batt}
# These were tested on the I8000. If you have a different Dell laptop model
# you should check the BIOS temperature monitoring and set the appropriate
# thresholds here. In doubt start with low values and gradually rise them
# until the fans are not always on when the cpu is idle.
set config(0) {{- 0} -1 55 -1 55}
set config(1) {{- 1} 45 60 45 60}
set config(2) {{- 2} 55 125 55 125}
set config(3) {{- 2} 70 128 70 128}
edit: changed temperature thresholds - I think the key temps are: 55: turn on fan at level 1 until cooled down to 45. Above 60, start blasting the fan at full speed
Last edited by twelveeighty (2012-09-02 21:35:50)

If you're using systemd, to run i8kmon you should edit i8kmon.service file
/usr/lib/systemd/system/i8kmon.service
from
[Service]
ExecStart=/usr/bin/i8kmon -nd
to
[Service]
ExecStart=/usr/bin/i8kmon --daemon --nouserconfig

ThinkCentre A70 (7099) case fan, what size?

Hi,
I need to get some more air flowing through my ThinkCentre A70 (7099).
There's a place for a fan in the rear of the case below the PSU. I've measured it and I think it's either a 92MM fan or a 100MM fan but I don't want to buy the wrong size fan.
I can't find any information about it on any document from Lenovo. There is no information what so ever about a rear case fan for the ThinkCentre A70 anywhere.
Which size is it?
Regards
P-H, Sweden

You might want to use a 3-pin fan with speed adapters, so you can control the amount of air flow (rather than rely on what the BIOS thinks is correct.) I have the precurser to one of these installed with the medium speed adapter:
http://www.noctua.at/main.php?show=productview&products_id=104&lng=en
"3 speed settings for full flexibility
Providing 1600, 1250 and 1050 rpm speed settings via the supplied Low-Noise and Ultra-Low-Noise Adapters, the NF-A9 FLX (Flexibility) can be fine-tuned for superior airflow or maximum quietness."

Case fans control?

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