Unusual Fan-Speed (up to 6200rpm @ 92°CPU), MBP 2011/ OSX 10.10.2

Dear Community,
I've got a problem with my MacBook Pro (late 2011) [2.4 Ghz/ 16GB RAM (upgraded)/ 256 GB SSD (upgraded)/ 500GB HDD (internal, upgraded (instead of DualDrive, iFixit-slot)).
Since last week I am observing that the fan of my Macbook revs up pretty high and pretty quickly up to 92° CPU temperature @ 6200rpm of the fan according to iStats Pro. This can happen in idle as well as load of any kind. I already cleaned the fan. Never experienced it before. Pretty unusual behaviour.
Do you have any suggestions/ guesses/ tips/ help for me? Thank you very much in advance.
Here's a copy of an (Etre)Check that I just recently ran. Hopefully it helps:
EtreCheck version: 2.1.8 (121)
Report generated 17 Feb 2015 09:56:42 CET
Download EtreCheck from http://etresoft.com/etrecheck
Hardware Information: ℹ️
    MacBook Pro (13-inch, Late 2011) (Technical Specifications)
    MacBook Pro - model: MacBookPro8,1
    1 2.4 GHz Intel Core i5 CPU: 2-core
    16 GB RAM Upgradeable
        BANK 0/DIMM0
            8 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            8 GB DDR3 1333 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
    Battery Health: Normal - Cycle count 204
Video Information: ℹ️
    Intel HD Graphics 3000 - VRAM: 512 MB
        Color LCD 1280 x 800
        S273HL spdisplays_1080p
System Software: ℹ️
    OS X 10.10.2 (14C109) - Time since boot: 0:14:0
Disk Information: ℹ️
    M4-CT256M4SSD2 disk0 : (256,06 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
        Macintosh HD (disk1) / : 254.87 GB (32.70 GB free)
            Encrypted AES-XTS Unlocked
            Core Storage: disk0s2 255.20 GB Online
    ST9500325ASG disk2 : (500,11 GB)
        EFI (disk2s1) <not mounted> : 210 MB
        Boot OS X (disk2s3) <not mounted> : 134 MB
USB Information: ℹ️
    Apple Computer, Inc. IR Receiver
    Apple Inc. FaceTime HD Camera (Built-in)
    Logitech USB Laser Mouse
    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
Kernel Extensions: ℹ️
        /Applications/Parallels Desktop.app
    [not loaded]    com.parallels.kext.hidhook (8.0 18619.1001606) [Click for support]
    [not loaded]    com.parallels.kext.hypervisor (8.0 18619.1001606) [Click for support]
    [not loaded]    com.parallels.kext.netbridge (8.0 18619.1001606) [Click for support]
    [not loaded]    com.parallels.kext.usbconnect (8.0 18619.1001606) [Click for support]
    [not loaded]    com.parallels.kext.vnic (8.0 18619.1001606) [Click for support]
        /Applications/Tunnelblick.app
    [not loaded]    net.tunnelblick.tap (1.0) [Click for support]
    [not loaded]    net.tunnelblick.tun (1.0) [Click for support]
        /System/Library/Extensions
    [loaded]    com.avira.kext.FileAccessControl (1.0.0d1 - SDK 10.9) [Click for support]
    [not loaded]    com.caiaq.driver.NIUSBMaschineControllerDriver (2.5.2 - SDK 10.7) [Click for support]
    [not loaded]    com.cisco.nke.ipsec (2.0.1) [Click for support]
    [not loaded]    com.maudio.usb.fasttrack.driver (1.8.2) [Click for support]
    [not loaded]    com.native-instruments.driver.NIUSBDeviceHelper (1.0.8) [Click for support]
    [not loaded]    com.wdc.driver.1394HP (1.0.9) [Click for support]
    [not loaded]    com.wdc.driver.1394_64HP (1.0.0 - SDK 10.6) [Click for support]
    [not loaded]    com.wdc.driver.USBHP (1.0.11) [Click for support]
    [not loaded]    com.wdc.driver.USB_64HP (1.0.0 - SDK 10.6) [Click for support]
Startup Items: ℹ️
    M-AudioFastTrack: Path: /Library/StartupItems/M-AudioFastTrack
    Startup items are obsolete in OS X Yosemite
Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.avira.antivirus.general.agent.plist [Click for support]
    [loaded]    com.avira.antivirus.ipm.ui.plist [Click for support]
    [loaded]    com.avira.antivirus.notifications.agent.plist [Click for support]
    [loaded]    com.avira.antivirus.odscan.default.plist [Click for support]
    [loaded]    com.avira.antivirus.scheduler.agent.plist [Click for support]
    [running]    com.avira.antivirus.systray.plist [Click for support]
    [loaded]    com.avira.antivirus.telemetry.agent.plist [Click for support]
    [loaded]    com.avira.antivirus.update.default.plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [loaded]    com.oracle.java.Java-Updater.plist [Click for support]
    [loaded]    org.macosforge.xquartz.startx.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [failed]    com.avira.antivirus.dbcleaner.plist [Click for support]
    [failed]    com.avira.antivirus.ipm.loader.plist [Click for support]
    [running]    com.avira.helper.watchdox.plist [Click for support]
    [loaded]    com.google.keystone.daemon.plist [Click for support]
    [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
    [loaded]    com.oracle.java.Helper-Tool.plist [Click for support]
    [loaded]    com.oracle.java.JavaUpdateHelper.plist [Click for support]
    [loaded]    com.sibelius.sari.plist [Click for support]
    [loaded]    com.sibelius.sibelius6.plist [Click for support]
    [loaded]    com.wuala.WualaFS.KextLoaderHelper.plist [Click for support]
    [loaded]    org.cindori.AuthHelper.plist [Click for support]
    [loaded]    org.cindori.TEAuth.plist [Click for support]
    [loaded]    org.macosforge.xquartz.privileged_startx.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
    [failed]    com.google.GoogleContactSyncAgent.plist [Click for support]
    [loaded]    net.tunnelblick.tunnelblick.LaunchAtLogin.plist [Click for support]
User Login Items: ℹ️
    iTunesHelper    Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Internet Plug-ins: ℹ️
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    Default Browser: Version: 600 - SDK 10.10
    AdobePDFViewerNPAPI: Version: 10.1.13 [Click for support]
    AdobePDFViewer: Version: 10.1.13 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    o1dbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
    QuickTime Plugin: Version: 7.7.3
    Scorch: Version: 6.2.0 [Click for support]
    googletalkbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
    SharePointBrowserPlugin: Version: 14.3.9 - SDK 10.6 [Click for support]
    JavaAppletPlugin: Version: Java 8 Update 31 Check version
User internet Plug-ins: ℹ️
    BlueStacks Install Detector: Version: Unknown
Safari Extensions: ℹ️
    WOT
    Ghostery
    Blur (Formerly DoNotTrackMe)
    Twitter Disconnect
    Google Disconnect
    Facebook Disconnect
    AdBlock
    JavaScript Blocker
3rd Party Preference Panes: ℹ️
    Flash Player [Click for support]
    GPGPreferences [Click for support]
    Java [Click for support]
    M-AudioFastTrack [Click for support]
    Native Instruments USB Audio [Click for support]
    Xmarks for Safari [Click for support]
Time Machine: ℹ️
    Skip System Files: NO
    Mobile backups: OFF
    Auto backup: NO - Auto backup turned off
    Volumes being backed up:
        Macintosh HD: Disk size: 254.87 GB Disk used: 222.17 GB
    Destinations:
        Time Machine [Local]
        Total size: 1.50 TB
        Total number of backups: 14
        Oldest backup: 2014-10-28 14:02:40 +0000
        Last backup: 2015-02-15 19:01:58 +0000
        Size of backup disk: Excellent
            Backup size 1.50 TB > (Disk size 254.87 GB X 3)
Top Processes by CPU: ℹ️
         8%    WindowServer
         1%    avguard-ondemand-mgmt
         0%    configd
         0%    fontd
         0%    savapi
Top Processes by Memory: ℹ️
    533 MB    Safari
    412 MB    softwareupdated
    361 MB    savapi
    326 MB    avguard.bin
    206 MB    com.apple.dock.extra
Virtual Memory Information: ℹ️
    9.62 GB    Free RAM
    4.27 GB    Active RAM
    1.30 GB    Inactive RAM
    1.99 GB    Wired RAM
    2.28 GB    Page-ins
    0 B    Page-outs
Diagnostics Information: ℹ️
    Feb 17, 2015, 09:45:07 AM    /Library/Logs/DiagnosticReports/NotificationCenter_2015-02-17-094507_[redacted] .cpu_resource.diag [Click for details]
    Feb 17, 2015, 09:44:47 AM    /Library/Logs/DiagnosticReports/rpcsvchost_2015-02-17-094447_[redacted].cpu_res ource.diag [Click for details]
    Feb 17, 2015, 09:41:50 AM    Self test - passed
    Feb 15, 2015, 08:00:51 PM    /Library/Logs/DiagnosticReports/???_2015-02-15-200051_[redacted].cpu_resource.d iag [Click for details]
    Feb 15, 2015, 07:50:40 PM    /Library/Logs/DiagnosticReports/???_2015-02-15-195040_[redacted].cpu_resource.d iag [Click for details]
    Feb 15, 2015, 07:48:59 PM    /Library/Logs/DiagnosticReports/???_2015-02-15-194859_[redacted].cpu_resource.d iag [Click for details]
    Feb 15, 2015, 05:43:19 PM    /Users/[redacted]/Library/Logs/DiagnosticReports/Finder_2015-02-15-174319_[reda cted].crash
    Feb 15, 2015, 04:37:53 PM    /Users/[redacted]/Library/Logs/DiagnosticReports/QuickLookUIHelper_2015-02-15-1 63753_[redacted].crash
    Feb 15, 2015, 11:23:05 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_20 15-02-15-112305_[redacted].crash
    Feb 15, 2015, 11:03:59 AM    /Library/Logs/DiagnosticReports/openvpn_2015-02-15-110359_[redacted].crash
    Feb 14, 2015, 03:43:48 PM    /Library/Logs/DiagnosticReports/???_2015-02-14-154348_[redacted].cpu_resource.d iag [Click for details]
    Feb 14, 2015, 03:39:05 PM    /Library/Logs/DiagnosticReports/mdworker32_2015-02-14-153905_[redacted].crash
    Feb 14, 2015, 03:38:55 PM    /Library/Logs/DiagnosticReports/mdworker32_2015-02-14-153855_[redacted].crash
    Feb 14, 2015, 03:38:45 PM    /Library/Logs/DiagnosticReports/mdworker32_2015-02-14-153845_[redacted].crash
    Feb 14, 2015, 03:38:35 PM    /Library/Logs/DiagnosticReports/mdworker32_2015-02-14-153835_[redacted].crash
    Feb 14, 2015, 10:36:31 AM    /Library/Logs/DiagnosticReports/openvpn_2015-02-14-103631_[redacted].crash

Thank you very much for your answer, OGELTHORPE.
I actually did reset the SMC several times the last few days and also observed unusual behaviour by the use of the Activity Monitor – with no result.
The CPU temperature as well as the fan speed can be at a top level without many processes at all. Happened right before I posted my question just after the last start of the system. Of course it also happens when I run a whole bunch of applications, but even in that case it differs. Sometimes it goes up, sometimes it's totally normal. That's why I called it "unusual".
Any further ideas besides the SMC reset?

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Hi all,
I have a Dell Precision M6400 17" laptop. It runs really well on Arch, but is a bit noisy. It has always been noisy, btw, but I recently noticed that the CPU fan was blowing a lot of air even though the CPU temperature is lower than 70°C. I also have a macbook air, and its CPU runs at 70°C all the time, which seems to be normal. I would like my m6400 to behave similarly, and I'm sure someone here know how to change that
Hardware configuration
* Intel(R) Core(TM)2 Extreme CPU Q9300 @ 2.53GHz
* Quadro FX 2700M (G94M)
* 8Go RAM
* 2 hard drives
lspci output
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port (rev 03)
00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)
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00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 02)
00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: NVIDIA Corporation G94M [Quadro FX 2700M] (rev a1)
03:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
03:01.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
03:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 11)
03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 11)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5761e Gigabit Ethernet PCIe (rev 10)
0c:00.0 Network controller: Intel Corporation Ultimate N WiFi Link 5300
output of sensors, idle:
acpitz-virtual-0
Adapter: Virtual device
temp1: +45.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +51.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +51.0°C (high = +105.0°C, crit = +105.0°C)
Core 2: +48.0°C (high = +105.0°C, crit = +105.0°C)
Core 3: +46.0°C (high = +105.0°C, crit = +105.0°C)
output of sensors when I start interacting (light browsing, mail, chat):
acpitz-virtual-0
Adapter: Virtual device
temp1: +59.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +63.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +63.0°C (high = +105.0°C, crit = +105.0°C)
Core 2: +62.0°C (high = +105.0°C, crit = +105.0°C)
Core 3: +63.0°C (high = +105.0°C, crit = +105.0°C)
When I start the laptop, its CPU fan stays at its minimal speed only for 1 or 2 minutes, then increases its rotation speed to a second level. It reaches it maximal speed only under heavy load, when the CPU reaches >80-95°C. I would rather let the CPU run a bit hotter before the fan starts to blow: let's say the fan could enter its intermediary speed between 70°C and 85°C instead of 55-80°C, and blow at is its maximum speed beyond that.
I checked the Fan Speed Control wiki page, but lm-sensors is not able to show me the status of the fans. Any idea ?
Aurel.
PS: the temperature of the GPU is not reported by sensors, and nvidia-settings reports around 60°C. Its dedicated fan is very quiet.

aurelieng wrote:
Hi all,
I have a Dell Precision M6400 17" laptop. It runs really well on Arch, but is a bit noisy. It has always been noisy, btw, but I recently noticed that the CPU fan was blowing a lot of air even though the CPU temperature is lower than 70°C. I also have a macbook air, and its CPU runs at 70°C all the time, which seems to be normal. I would like my m6400 to behave similarly, and I'm sure someone here know how to change that
Hi aurelieng,
I'm in the same situation from at least 1 month ( INTEL CORE 2 EXTREME X9100, 3.06GHz with 8GB ram, one solid state disk 128 GB, and one sata disk 500GB)
My dell M6400 has dual boot: ubuntu and windows7. The fan works a lot and continuosly in both environment and this is the reason because I have doubt that the origin of the problem is in hardware problem?
output of sensors when I start interacting (light browsing, mail, chat):
acpitz-virtual-0
Adapter: Virtual device
temp1: +41.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +41.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +41.0°C (high = +105.0°C, crit = +105.0°C)
Last edited by ginard (2012-11-16 18:09:19)

[Solved] Asus L1366 mobo, cpu fan speed control

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I finally have this new core i7 system, to replace my old AMD athlonx2. I have one question about the CPU fan speed control.
I remember that in my old system, the cpu fan speed control works out of box, no configuration is needed.
But when I install arch 64 on this new i7 system, the cpu fan is running at its maximum speed constantly while the CPU temperature is modestly low. I know there is a wiki teaching how to do it.
However, I am just curious why it doens't work out of box any more? Does CPU fan control work for you guys out of box normally? especially the new Core i7 cpu users?
Please let me know, really appreciated it.
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Update: the issue is solved, see my last post, the solution is blacklisting: asus_atk0110, instead use w83667hg.
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Last edited by mark.altern (2009-10-01 08:18:18)

First off, it would be useful to know what the sensors-detect script actually reports.
Okay. How fan control works on Linux: First, navigate to /sys/class/hwmon
Each of these folders, i.e. hwmon0, stands for a sensors monitor / fan controller on your mainboard that may control one or several fans. Inside hwmonN, there should be a subfolder called device, which contains several interfaces if your BIOS allows software-side fan control. You can read them with cat and write to them with echo.
Examples:
pwm1_enable shows if OS-level fan control is enabled (1) or disabled and in BIOS control (0). Changing fan speed won't work if this is disabled. (i.e. cat /sys/class/hwmon0/device/pwm1_enable reports 0 -> disabled; you could enable it with echo 1 > /sys/class/hwmon0/device/pwm1_enable).
pwm1 allows to change fan speed. The values range from 0 (fan off) to 255 (full speed, 12V).
fan1_input shows the current RPM if a fan is connected. You can only read from this interface. Its useful to check all of these in the each of the hwmon folders to find out if there is actually a fan connected to the fan controller (they often have more ports than mainboard manufacturers use).
There might be a fan1_div, this is somehow related to how the kernel reads the RPM, I don't know how it works.
temp1_input interfaces can appeare too, if some of the chips have temperature sensors located somewhere. I *think* lm_sensors places the core temperatures it reads from CPU (the coretemp-isa-000X thingies) in one of the hwmon-folders too.
There might be interfaces for different fans in the same hwmon folder, i.e. pwm2_enable, pwm2, fan2_input, etc., all interfaces with the same index belong to the same physical fan connector, and all in the same hwmonN are managed by the same IC on your mainboard.
Warning: These interfaces, if they work, control the fans directly without any kind of security measure. If you shut some essential fan down, it will stay off until you reboot your CPU shuts down.
(If you see something likein0_alarm, in0_input, in0_max, etc. it's a voltage monitoring chip.)
If one of those interfaces can do something, OS-level fan control does work, if none of those folders contain a working pwm interface, fan control seems to be unavailable.
Sometimes there is an option in the BIOS to enable it, and for some BIOSs software-side fan control only works if dynamic fan control is disabled in the BIOS and fan speed is set to a static value - or vice versa.
I don't know what you are using to control fan speed, there are many applications that use these interfaces, i.e. GNOME or KDE power managers, so I'm not sure what is happening:
IF: Windows 7 enables OS-level fan control and sets it the RPM to those you observed and you have nothing that provides fan control in Arch and so fan control stays at BIOS-level, which might also read out a different sensor / the same sensor differently or it might be more conservative in setting fan speeds altogether;
OR: You have something that provides fan control installed in Arch and it reads out a the wrong value supplied by lm_sensors and thus sets a higher fan speed.
Anyway, possible solutions I can think of:
Find out if you have some kind of fan control software and what it does. For example, I use the fancontrol daemon, I can't help you if you use something else.
The wiki mentions how to assign a fan speed to a certain temperature sensors. You might assign it to a different one. For example, there are no sensor chips on the mainboard of my EEE (no temp1 etc.) so I assigned the fan speed to the temperature reported by the BIOS via ACPI (those are in /sys/class/thermal, also no "device" subfolder on EEEs):
FCTEMPS=/sys/class/hwmon/hwmon0/pwm1=/sys/class/thermal/thermal_zone0/temp
You could also change the MINTEMP/MAXTEMP values to one higher than those you actually want to compensate for the effect of lm_sensors reporting temperatures that are too high.
It is currently not possible for a mortal user to change the coretemps lm_sensors reads, see this post, last paragraph.
There is a configuration file, /etc/sensors3.conf, you can change sensor names and adjust offsets here, but only for the monitoring chips and their sensors that are on the mainboard.
Last edited by Malstrond (2009-08-19 19:34:22)

Kernel_task high cpu usage, high fan speed, and low cpu tempterature

Hi,
I've noticed that a lot of people have been having trouble with the kernel_task process, but I couldn't quite find a situation similar to mine (most seem temperature related).
Here is the situation (15' MBP, mid-2010):
- on boot (while the apple logo is shown), the fans speed suddenly jumps, and stays there, even if the computer has been off for a while.
- boot takes a little over a minute, which is considerably slower than what I was used to before today
- when finally started-up, the activity monitors shows kernel_task using between 160-180% of the CPU!
- temperatures are shown to be around 30C, except for the mem controller at 40C (still very low temp), but the fan speed is arround 6000rpm for both fans.
- this happened out of nowhere, as I woke the mpb from sleep this morning.
Since then I've tried:
- multiple reboots
- install all updates
- uninstall flash player (some people where having trouble with that)
- empty the system cache with Onyx (reported as a cause of slow boot)
- reset PRAM
- reset SMC
- put some ice packs under the mpb to cool things even further!
And so far, nothing has worked! I've had this laptop for 1 year, and nothing had ever failed. I upgraded to lion a few weeks ago, and everything had been working fine since the upgrade. This really happened out of nowhere, and none of the many forums I have read could offer a solution, and cals to apple support do not seem to yield better results (though I scheduled a call with them at 9am this morning, we'll see).
Has anyone had a similar set of problems?
I appreciate any help or advice you may have!
Thanks!
-Sebastien

I have the same issue (2.66 2010 MBP Hi-Res Anti Glare.)
I took it to Apple Store Covent Garden, JUST within warranty.
18 days later my machine has a new Main Logic borad, heat sensors, top case, palm rest. etc.
I turned it on.
The fans kicked in. All processors at 50%, big ole kernal task.
I took it back, geniuses rest SMC and tested it under load and it was fine.
weirdly it failed diagnostics at first but then seemed fine
I came home. Fans kicked in...
I took it back. Diagnostics failed heat sensors again
Replaced logic board and heats sensors again, but more carefully this time just in case, tested again.
I took it home. FANS FANS FANS.
Last time I was in the store I was told my machine was fine and had been thoroughly tested.
In mac store, no fans.
I erased hard drive and clean installed Lion
FANS
I replaced hard drive with OCZ SSD, clean LION.
Fans
Software update
SMC
PRAM
permissions
Onyx complete clean/maintenace
FANS/CPU
switched back to Snow Leopard SSD
PRAM SMC ONYX etc.
FANS/CPU
replaced RAM, memtest-ed. fine, FANS
gonna try again but up to nearly 2 months of all my spare time trying to shut this thing up so I can sell it.

Fan speed and CPU temp

Hi There,
I have MBA 13'' Mid 2011.
I'm little bit concerened about Temp of my CPU which is 96°C, and Fan speed is around 6500rpm.
I can hear my fan all the time.
It was not like this always and i'm kind of sure that something is causing this.
I worked before with lots of apps open (itunes, photoshop, text editor, chrom, mail, parallels..) and fan and temp was not this high.
Is there way to find out what is causing this high usage?
Thanks in advanced

First execute a SMC reset:
http://support.apple.com/kb/HT3964
If no change, install istat menus.
http://bjango.com/mac/istatmenus/
Open Activity Monitor to ALL PROCESSES and CPU. Make certain that CPU displays values from high to low.
Post images of both istat menus and Activity Monitor whe the MBA has heated up.
Ciao.

CPU heats up on file copy/backup and fan speed does not increase

Hi Friends,
I have been having issues with fan in my Dell Studio 1555. It has an ATI Radeon card and I had installed the proprietary catalyst driver as the open source driver is too noisy.
Recently, I noticed that on accessing my hard disk and copy files or running backup (luckybackup), the temperature shoots up from around 60 deg C (just using chrome) to 100 deg C when it would shut down itself. However, it seems like the fan speed does not increase with the increase in temperature to help it cool down.
I tried to get the fan speed details with "lm-sensors" but it would not show the fan speed. Here is the output of sensors:
[user@domain]$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +60.0°C (crit = +100.0°C)
temp2: +59.0°C (crit = +100.0°C)
temp3: +66.0°C (crit = +100.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +58.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +58.0°C (high = +105.0°C, crit = +105.0°C)
Following the Arch wiki, I added acpi_enforce_resources=lax to kernel parameters but it did not help as well.
Here is the main problem:
1. CPU temperature shoots on accessing hard drive but fan speed does not increase - Any guide/direction to investigate would be really helpful.
2. Sensors does not show the fan speed. Read about i8kutils, but couldn't figure out how to get it working with systemd. Any indicators here?
Last edited by ravisghosh (2013-07-01 05:22:01)

luuuciano wrote:Ravi, did you solved it?
Im having similar issue on a vostro 1710, fan never works... :-/
The fan was bad. I had to replace the fan. However, I have not been able to figure out how to see fan speed in sensors.
Last edited by ravisghosh (2013-09-08 15:57:37)

Weired voltage cpu temp and fan speed readings

Built this system last week when i install core center I get no 3.3 v readings. cpu temp plays between 18c to 60c and the fan speed from 800 t0 6000rpm. Check in the bios all voltage readings are fine but cpu temp and fan readins can be way off. Also installed lastest versions of mbm and get the same results. Flashed bios to latest version also. Cool and quiet is not activated. Weired thing everything runs fine. motherboard k8t neo2 cpu amd 64 3500 memory corsair 3200LL 1024 video card BFG 6800gt sound Audigy 2 hard drive WD 120 sata liteon dvd rom and cd-r power supply Antec 480watt neo power Everything is at stock speeds with all latest drivers and xp sp2. Don't know what can be the problem. Please help not the first systeme I have built but first time I encounter this problem. Tried 3 different psu for testing and get the same result.

Well sorry to say I solved the problem for good. Contacted MSI support. Only answer I got was Maybe the board was bad. Got it exchanged from the store and got an Asus av8 deluxe rev.2 instead. Everything runs fine. It was my first MSI board and sad to say it gave me a lot of headaches and configeration problems. The new setup ran great on the first try. Don't think I will buy MSI again in the near future.

MSI Max 2 BFIR; Problems with CPU Fan speed in PC Alert!

servus...
First of all, I have Bios version 1.3 from the .de support Page.
I don´t know, why .com.tw doesn´t have this version.
But here´s my problem:
PC Alert doesn´t show a CPU-fan speed!
The northbidge fan shows the fan speed roundabout 5000.
In BIOS CPU Fan ~2500
PC ALert versions:
4.005
4.006
Any ideas?
Thanks

Thank You for the reply,
Before the latest update to PCAlert4 it was working properly, I cross checked the reported info. to that of Sandra, MBM, and in the bios.
Also the temps are only swapped between the system temp. and the CPU temp., other than that they are correct.
Thanks,
John

MSI CD53, i5 750 - Problem with CPU Fan Speed

Hello
I have problem with this counfiguration: i5 750, MSI CD53 Motherboard.
I Have processor overheating poblem. I noticed that processor easly can go up to 90C.
I check phisycal installation, and all its ok.
After that i check RPM of CPU FAN and i noticed that it cant go over 1000 RPM, so propably this is problem.
In MSI Control Center maximum i can set 1000 RPM.
I read that CPU FAN can go up to 3000 RPM.
Maybe i have something wrong set up in bios? What can i do with this?

Quote
CD53
Which board exactly do you have?
What is your current BIOS Version?
What kind of CPU-Fan are you using (3-Pin or 4-pin PWM (four wires) and which connector is it attached to?
What are your current fan speed/control settings in BIOS Setup?
Quote
I check phisycal installation, and all its ok.
Physical installation is one thing, but what about thermal paste (have you used a PROPER amount (too much thermal paste has the opposite effect))?
What about your case ventilation?
Quote
I noticed that processor easly can go up to 90C.
Please check the CPU's core temperatures with CORE TEMP, REAL TEMP or HW-MONITOR!

CPU fan speed problem -- similar to one already posted

Core i7 290
6GB SuperTalent DDR3 RAM 1333 (3x2GB)
BFG GeForce GTX 275 OC
2 120mm case fans (front/back)
Thermaltake CL-P0533 CPU cooler
Vista Home Premium 64-bit
MSI x58 Pro MoBo w/BIOS v.8.3
PCP&C Silencer 750 watt Power Supply
500GB Seagate Barracuda HDD
Yeah, I know that all that info probably isn't that necessary.
Problem: I have a Thermaltake cl-p0533 for my core i7 920. My fan runs 6000+ RPM all the time. I've tried using the overclock center, greenpower center, and the BIOS smart fan thing. In BIOS, I tried setting it to 25% idle and 50c target temp range. No dice. I've tried using speedfan and all that I got was the speed knocked down about 300-500rpm for a bit. My CPU idles at about 33c (according to speedfan and OC center). The CPU fan speed is supposed to be able to be controlled. The noise is really annoying. Any help would be most appreciated.

Quote from: cooldudeguy911 on 30-July-09, 13:51:38
Core i7 290
First, I meant 920 (I must be dyslexic or something)
Yes, the CPU fan is connected to the CPU fan power connector (according to the mobo manual). I've set SpeedFan for the same as I had my BIOS settings. I've since changed them to lower temps. I've tried SpeedFan with and without using the SmartFan feature in the BIOS enabled. My Two case fans are super quiet, so I don't use any regulation for them. So my SpeedFan settings look like this:
Speed 1 - minimum value = 25% maximum value = 100% auto variated
Temp 1 - Desired = 42c warning = 50c
Cores 0-7 = same as Temps 1 settings
I've also disabled the other temperatures for monitoring and fan control
As for the number of wires for the cooler fan, there are 4 going to the mobo.
I don't really know much about add-on fan controller parts. If that's the route I end up needing to go, any recommendations?

Z77A-G45- CPU fan speed problem

Hi all, new to this forum and MSI Motherboards.
i have a problem with my CPU fan speed when i plug any fan and water cooler fan into the CPU 4pin they all run at 2000+ rpm, but when i use the fan 1 or fan 2 --4 pin it runs at a slower speed of 1400rpm, am i missing something in bios, i have 2.5 version of bios, would be greatfull for any help....

Should be able to adjust in the section below or with control center.
Quote
Hardware Monitor
Press <Enter> to enter the sub-menu.
CPU Smart Fan Target
Controls CPU fan speed automatically depending on the current temperature and
to keep it with a specific range. If the current CPU temperature reaches the target
value, the smart fan function will be activated.
SYS Fan1/ Fan2 Control
These items allow users to select how percentage of speed for the SYSFAN1.
CPU/ System Temperature, CPU FAN/ SYS FAN 1/ SYS FAN2 Speed
These items show the current status of all of the monitored hardware devices/ components
such as CPU temperature/ system temperature and the few fans’ speeds.

Unusual Fan-Speed (up to 6200rpm @ 92°CPU), MBP 2011/ OSX 10.10.2

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