Sporadic high-speed fan behavior ––– removing battery solves problem?

Every so often, my fans will peg around 6,000rpm, even though the operating temp is around 120º – not nearly hot enough to trigger such fan action. I check Activity Monitor and nothing is hogging the CPU (Safari 5.0, kernel_task 3.3, pmTool 2.6, configd 2.4, etc. – these are pretty typical readings.) The % Idle is usually around 90%.
I just discovered that removing the battery solves the problem. Just one minute later, my fan speed is at 2003rpm.
It's driving me nuts, and (of course) when I take it to the Genius Bar, it won't replicate the problem.
Any ideas?

While I'm not sure what may be causing your sporadic fan behavior, running your MacBook Pro with the battery removed causes the system to significantly reduce the processor speed. That is probably why your system is running cooler with the battery removed... not because of any fault with the battery itself:
http://support.apple.com/kb/HT2332
You may want to reset your System Management Controller (SMS). The link below provides the details. Among the things this will address are fans that run at high speed although the computer is not experiencing heavy usage and is properly ventilated. Be sure to follow the instructions specific for your machine as they vary slightly from model to model.
http://support.apple.com/kb/HT3964?viewlocale=en_US

Similar Messages

Tecra S11 - High Speed Fan

Hi guys,
I need some help on a issue that really puzzle's me.
After I tried to make a bios update to the ultimate (February 2012) version, within windows 7, I've obtained an error message stating that I had no permission to make the update. Since then, the fan starts to rotate in high speed, as soon as I start the computer, just after the logo display.
Since then I've upgraded the bios using the Dos procedure, but the proble persists. It performs like a fully fledge high capacity server regarding the noise fan.
How can I troubleshoot this and solve it?
Thank you.

Hi MasterG,
Thank you for your answer but that is not the problem.
Than Fan rotation starts at Post level, long before the Os kernel starts to execute.
Another starnge thing is that when I put the pc on sleep mode, when it awakes the fan is stoped. If I restart the Pc the symptom restarts.
I tried to update the bios to ver 3.30 using BIOS330_EC200.exe
It could be a EC/KBD problem. When executing from Win7 it states:
BIOS Version : Current Ver.3.30 --> Updated Ver.3.30
EC Version : Current Ver.1.90 --> Updated Ver.2.00
There is need to update EC.
<EXECUTE THE UPDATE>
Error: Preparing to update was failed.
You have not given permission to execute the update.
Really there's a problem with the update. Then only way I could do the bios update was preparing a Dos usb device and boot executing Chgbiosf BIO0076T.com and it worked.
when I tried to update the Ec using Chgbiosf EC72V200.BIN it says that the file does not exist.
So, this is the status of the problem. I don't know if anyone can help, but I fear that th Tecra S11 will blow up anytime soon if this continues.
Thanks.

Random High Speed Fan

For the few of us that have this problem (Main fans randomly go to full speed and usually will not slow down until computer is completely shut down and started again) You should get your original cds that came with your mac and put in disk one and run the extended diagnostic test. When I did this I came up with the error: 4SNS/1/40000001:VMBS. A call to apple has a tech scheduled to replace the logic board. I know it is an easy problem to ignore, but you might as well do it now before your warranty runs out! If anybody has had a different solution to this, please post.

Welcome to the Apple Support Communities
The first thing you should try is to reset the SMC > http://support.apple.com/kb/HT3964 This will reset the fan speed, so it should be working again.
If after doing that, your iMac keeps turning off automatically, you should take the Mac to an Apple Store because it looks like a hardware issue

Bypass High Speed fan tray req for Sup720

Anyone use the command to disabled this feature? What's the command? What's the procedure (boot ROM)? How long can the system run without causing damage? Immediate need to boot until high fan tray can be delivered.

The command is ALLOWANYFAN=1 in ROMMON. I did not have to use set to add variable, but use it to view. I'm not sure if it's case sensitive. I used all upper case and alarm indicators went out on sup module. Here's some log outout. Notice the temp rising. (The chassis powered down sup module after approx. 5 minutes without these commands. Notice the logg buff output warnings).
rommon 1 > set
PS1=rommon ! >
RTS=02:59:30 PDT Sat Aug 27 2005
?=0
BOOT=disk0:s72033-ipservicesk9_wan-mz.122-18.SXE2.bin,1;
BSI=0
RET_2_RCALTS=
ACL_DENY=0
PF_REDUN_CRASH_COUNT=0
rommon 2 > ALLOWANYFAN=1
rommon 3 > ALLOWANYPS=1
AFTER:
rommon 4 > set
PS1=rommon ! >
LOG_PREFIX_VERSION=1
SLOTCACHE=cards;
RET_2_RTS=02:59:30 PDT Sat Aug 27 2005
BOOT=disk0:s72033-ipservicesk9_wan-mz.122-18.SXE2.bin,1;
BSI=0
RET_2_RCALTS=
ACL_DENY=0
PF_REDUN_CRASH_COUNT=0
?=0
ALLOWANYFAN=1
Router#sh mod
Mod Ports Card Type Model Serial No.
2 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX SAD09330AVJ
3 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX SAD093307MP
5 2 Supervisor Engine 720 (Active) WS-SUP720-3B SAL09337RHD
FIRST SHOW TEMP:
Router#sh envir cool
fan-tray 1:
fan-tray 1 type: WS-C6K-9SLOT-FAN
fan-tray 1 version: 1
fan-tray 1 fan-fail: OK
chassis per slot cooling capacity: 37 cfm
module 2 cooling requirement: 70 cfm
module 3 cooling requirement: 70 cfm
module 5 cooling requirement: 35 cfm
Router#sh envir temp
VTT 1 outlet temperature: 19C
VTT 2 outlet temperature: 19C
VTT 3 outlet temperature: 32C
module 2 outlet temperature: 22C
module 2 inlet temperature: 16C
module 5 outlet temperature: 24C
module 5 inlet temperature: 19C
module 5 device-1 temperature: 28C
module 5 device-2 temperature: 27C
module 5 asic-1 (SSO-1) temp: 19C
module 5 asic-2 (SSO-2) temp: 18C
module 5 asic-3 (SSO-3) temp: 18C
module 5 asic-4 (SSO-4) temp: 19C
module 5 asic-5 (SSA-1) temp: 18C
module 5 asic-6 (HYPERION-1) temp: 18C
module 5 RP outlet temperature: 20C
module 5 RP inlet temperature: 20C
module 5 EARL outlet temperature: 32C
module 5 EARL inlet temperature: 19C
LAST SHOW TEMP:
Router#sh envir temp
VTT 1 outlet temperature: 19C
VTT 2 outlet temperature: 19C
VTT 3 outlet temperature: 29C
module 2 outlet temperature: 38C
module 2 inlet temperature: 18C
module 5 outlet temperature: 26C
module 5 inlet temperature: 19C
module 5 device-1 temperature: 31C
module 5 device-2 temperature: 31C
module 5 asic-1 (SSO-1) temp: 19C
module 5 asic-2 (SSO-2) temp: 19C
module 5 asic-3 (SSO-3) temp: 19C
module 5 asic-4 (SSO-4) temp: 19C
module 5 asic-5 (SSA-1) temp: 19C
module 5 asic-6 (HYPERION-1) temp: 19C
module 5 RP outlet temperature: 21C
module 5 RP inlet temperature: 21C
module 5 EARL outlet temperature: 35C
module 5 EARL inlet temperature: 20C
LOGGING BUFFER WARNINGS:
00:01:23: %OIR-SP-6-INSPS: Power supply inserted in slot 1
00:01:23: %C6KPWR-SP-4-PSOK: power supply 1 turned on.
00:01:24: SP: Warning: Module 2 cannot be sufficiently cooled. Should disallow module power up
but allowing.
00:01:25: SP: Warning: Module 3 cannot be sufficiently cooled. Should disallow module power up
but allowing.
00:01:25: SP: Warning: DFC on Supervisor requires chassis fan upgrade. Should shutdown system b
ut not doing so.
00:01:26: %FABRIC-SP-5-CLEAR_BLOCK: Clear block option is off for the fabric in slot 5.
00:01:26: %FABRIC-SP-5-FABRIC_MODULE_ACTIVE: The Switch Fabric Module in slot 5 became active.
00:01:26: SP: Warning: Module 2 cannot be sufficiently cooled. Should disallow module power up
but allowing.
00:01:26: SP: Warning: Module 2 cannot be sufficiently cooled. Should disallow module power up
but allowing.

Adobe Reader X triggers high speed fan in Qosmio F750

Has anybody experienced this? When certain .pdf files are opened it triggers the fan to start blowing air inside the laptop. Will not stop until reboot or close down. Not all .pdf files do this - think it is about 50%. This laptop has done this since bought in June 2012.
Anybody got any ideas?

Ive never heard about that. Is this issue related to pdf files and Adobe Reader only or you have noticed that some specific actions or when more different applications are open this happen.
Before you open it next time try to close some useless processes in task manager and check please if this will happen again.
Please post some feedback.

Hp compaq 615 - high speed fan

Previously, it was all good cooler is not noisy
cleaned up the laptop from dust
pulled the battery from the motherboard
and then it all started
cooler always makes a noise
tried to disable the BIOS
but did not help
reset all the settings Biosa
did not help = (
I think something with the firmware
CPU temperature is normal
50-60 C
even up to 33-35 C down
I do not remember before my firmware version was
Now look through the prog that I have AIDA64
Field Value
BIOS Properties
BIOS Type Compaq
BIOS Version 68GVV Ver. F.06
Compaq BIOS Ownership Tag Unknown
Compaq BIOS UUID Unknown
System BIOS Date 06/10/09
Video BIOS Date 05/07/09
F.06 version =((((
I do not know to update the BIOS or not
I am afraid to kill a laptop ...
Please be advised that anything .......

ok then
1. download bios setup file
2. open it (double click
3. follow instructions - depends of exe type:
- simple quick install - just like normal aplication and system restart after
or
- it will ask U to chose place when u want to save bios files:
a) CD ROM
b) pendrive
4. U chose drive
5. setup will copy files on it
6. when its done u have to restart ur laptop
7. press F9 key when its starting - u see logo HP (before system will load)
8. chose drive U want to boot laptop from - depends what u have made in punkt 3.
9 it will automaticly install and after it will restart laptop also automaticly.
Done
click on Kudos if i helped U

HT201295 Late 2009 Intel iMac Needs Frequent SMC reset - constant high speed running fan

Late 2009 Intel iMac is having reoccurring episodes of high speed fan running, especially after waking it up. The SMC reset by unplug and reboot works, but I worry that this is a serious sign and that the machine is slowly dying. Any thoughts? Works fine otherwise.

wolfgang272 wrote:
Do you have any ideas?
Yes, you just need to reset the SMC and you should be fine
https://support.apple.com/kb/HT3964
Whoops you already did that.
Hardware Test then
https://support.apple.com/kb/ht1509
Read more info here
https://discussions.apple.com/message/16276201#16276201

Overheating- removing battery helps

I have a 2 year old 2.33G core duo MBP15. Temp has never been an issue but after the last OS update (10.5.5) the processor runs at >75ºC with no load. the fans roar at >4500 rpm. Reset power management and PRAM no help. Battery reads charged but removing battery solves the heating issue. Anyone have a clue? Is my battery dead. Did the OS kill it?

Mike:
It's not a good idea to remove the battery, as you can easily lose data if the electricity goes off or the AC power adapter is pulled out.
No, leaving the battery in will not shorten battery life. Apple's power management system protects the battery from overcharging.
Read the user guide about laptop use -- page 107, as I recall. No, that's not a design defect. Apple has warned for years that using a PowerBook or MBP in one's lap can be uncomfortable.
I use an aluminum tilt stand (without fans) whether my computer is on my desk or in my lap. That adds additional metal heat sink capacity and provides better air circulation under the computer. So the computer remains cooler and comfortable. Laptop trays and stands have been around for years as a common-sense solution to the fact that portable computers can be uncomfortable in one's lap. The vast majority of such trays or stands are sold to PC notebook users.

Hi Speed Fan Running

All of a sudden the high speed fan is on and don't know how to correct or verify status. Ran permissions. I do have disk warrior if that is germain?

Sorted this out thru research on intel imac's. Found a thread talking about resetting SMC (System Mgmt Controller). Essentially the fix is holding down the power button and shutting down the IMAC. Then unplug power cord. "A reset".
I knew the IMAC was not overheating and have never heard the fan going full tilt?
Hopefully this will help others at a later time. BTW the IMAC just had it's 1st birthday without a problem.
Gil

Event ID 1 for Intel Bluetooth Wireless High Speed after Windows Update

After the automatic update for Windows I received the following error message in the Event viewer, telling me that Intel Bluethooth Wireless High Speed has to be reinstalled after the update.
How do I reinstall Intel Bluethooth Wireless High Speed on my notebook?
Source: ApplicationExperienceInfrastructure
"Bei der Anwendung (Intel Bluethooth Wireless High Speed, von Lieferant Intel) sind folgende Probleme aufgetreten: Um eine einwandfreie Funktion zu gewhrleisten, muss Intel Bluethooth Wireless High Speed nach der Aktualisierung von Windows neu installiert werden."
+ System
- EventData
DBType 15
AppNameCount 36
AppName Intel Bluetooth Wireless High Speed
VendorNameCount 6
VendorName Intel
SummaryCount 149
Summary Um eine einwandfreie Funktion zu gewhrleisten, muss Intel Bluetooth Wireless High Speed nach der Aktualisierung von Windows neu installiert werden.
SessionID 0

Yeah, I tried it exactly as described.
I use the Satellite U940-11X (PSU6SE) which has as network adapters the Realtek PCIe FE Family Controler and the Intel Centrino Wireless Adapter N 2230. The OS platform is Windows 8, 64bit.
I first uninstalled the existing Intel Bluetooth driver, then the Intel ProSet Wireless software.
I downloaded the newest software from Intel's website which is:
- BT_2.6.1212_e64.exe, version 2.6.1212, 19-3-2013, for the Intel bluetooth software and
- Wireless_15.6.1_e64.exe, version 15.6.1, 19-3-2013, for the Intel PROSet/Wireless Software and Drivers
I have installed both software packages correctly and did not receive any error messages.
The installation seems to be faultless.
However, the bluetooth switch in PC settings (wireless tab) remains gray.
I cannot switch it from off to on.
In the device manager the bluetooth button is listed under hidden devices.
Where is the mistake?
Is it possible that my notebook requires specially modified drivers from the Toshiba website and/or additional drivers like to "bluetooth filter driver package" provided by Toshiba for my notebook model?
As to the bluetooth filter driver package it reads on the website that this driver is needed to enable bluetooth on your Atheros wlan-combo-card.
I am confused now because the notebook Satellite U940 11X (PSU6SE) doesn't have the Atheros card.
Any advice for me?
Thanks in advance
Rafu
Message was edited by: Rafu

Battery gets very hot during use and doesn't last long, fan runs at high speed, computer won't shut down

Macbook Air isn't a year old and I don't leave it plugged in ever. The battery might last 2 hours and gets very hot. In addition the fan runs at a very high speed. The computer won't shut down in a normal way. I have to hold the power button down to shut it off. Can someone suggest something please.
Thanks.

Runaway applications can shorten battery runtime

MacBook Pro can't recognize battery, fan is at high speed and computer functions really slow

My MacBook Pro suddenly won't recognize it's battery so I tried rmoving it's battery and put it back again. I can use it but there is still an (X) sign instead of the battery percentage on the upper right corner of my desktop. After this I turned on my laptop and all of a sudden the fan turned on on high speed and it became slow (by slow I mean really slow) even if I don't open/use anything on my computer because of this I went to an Apple Service Center and they tried to check if its because of the hard drive, RAM and all that stuff. They told me it's not because of those things but they also told me that maybe the wiring or the cable of the battery that connects to the computer is not working so I have to replace it. But for the fan and the slowing of my computer they don't know what's happening.
I really need help. Pleaseeeeeee. Thanks in advance.
MacBook Pro 13"
OS X - 10.9.5
Processor 2.4 GHz Intel Corr 2 Duo
Memory 4 GB 1067 MHz DDR3

Perform a SMC reset:
http://support.apple.com/en-us/HT201295
If no change, run an Apple hardware Test:
http://support.apple.com/en-us/HT201257
Ciao.

Early 2008 MacBookPro keyboard backlight off and fans run at high speed

Hi!
I wrote from Turkey.
My Early 2008 MacBookPro 2.40 ghz 4 gb Ram OSX Mavericks machine's keyboard backlight off and fans run at high speed; it seems an exact smc resetting problem.
So i tried the 2 ways of SMC restting procedure; both battery you can move and not, but nothings changed on the situation..
On the way for removable battery; nothing changed but on the way for umremovable battery way; keyboard backlight flashes and gone, but fans are at high speed not changed. So nothing changed.
What can i do right now? i'll wait for your advices
Thanks

Your Mac may need a new PRAM battery. Once it is over 4 years old, that often is needed.

Macbook Pro Fans Running At High Speed

My MBP 17" CoreDuo 2.16ghz came back from having the Logic Board replaced at the weekend. All is well except that now the fans run at high speed all the time.
I have installed SMCFanControl, and the current readings are 45 / 113 degrees and the fans are running at 5500 rpm. I took the machine back to the Apple store but when I was there the fans didn't go above 3000rpm (typical huh?). It's nice that the case is now a lot cooler than it used to be but the fans seem very loud to me.
The question is, is this normal? I am not running anything very heavy duty at the moment. Any ideas?
Thanks
Matt

I tend to agree with Ned on SMC fan control (that it arguably causes more problems than it solves).
I had a similar problem with mine recently having the fans run constantly and at full speed. My temperatures never approached yours, but it would fail to go to sleep etc.
I would start with the advice Ned gave you. This is the same path Apple Care led me down in trying to resolve the issue.
Ultimately though I had to do an archival install of the operating system. It is non-destructive so it wasn't a big deal. I just had to slowly re-install patches and observe behavior. Oddly I was able to patch back up to 10.4.9 without the issue re-occuring so the root cause is still a mystery to me.
edit
Patch gone bad maybe? I tried re-applying the 10.4.9 combo before attempting the archival install route with no success. I know that has been suggested many times. Apparenty it solves many issues, but it failed to solve mine.

I'm wondering if anyone else has had problems with their imac fans being extremely loud when running at slow speeds? When the computer heats up enough for the fans to run at higher speeds they quiet down. New HD fan was just installed.

I have an imac that I've had for a couple years. The fans have always been loud when running at the slower speeds. When the computer heats up enough for the fans to run at a higher speed the fans quiet down. I had installed SMC fan control after multiple attempts with Apple to get the fan issue resolved. That seemed to keep the fans quiet enough. I've never had a problem with overheating. Recently the fans were becoming loud again even running at the slightly higher speeds so I took it to my local Apple store and they replaced the hard drive fan. I got it back and it's now as loud or louder than ever!! And, now SMC fan control won't "stick." The fans will speed up, but then gradually go back to the lower "loud" levels. I'm at a loss as to what to do next.

Thanks jared,
I'm still dealing with this issue through Apple. Some time after I posted this, I contacted Apple again. They did start a case up for me, as I was experiencing the same behavior on two different machines, with two different versions of Windows.
So far it remains unsolved. I've logged iClouds for Windows on my desktop, which is brand new, then logged for awhile after completely uninstalling Norton Security Suite, depending on the Microsoft security for some time, and finally logged after I uninstalled iCloud for Windows, restarted, installed a clean download, and connected using a completely different test account, which Apple set up for me. None of this made any difference. Looking at the logs, it seems every 10 minutes, iCloudServices.exe creates a new TCP connection to confirm I'm using less than 5GB on iCloud, (which I am by a good margin, using less than 2GB), it seems this connection is not closed, and when the next iteration rolls around 10 minutes later, a new TCP connection is created. I come very close to having 6 TCP connections created per hour, until I restart my computer. This works out to... 6 x 24 = 144/day.
Perhaps the article you posted will shed some further light on this. I'm thinking seeing the state of the connection through netstats, at the least, could help.
For the last week, I've been putting a hold on further logging, as Apple wants me to create a new user account on one of my computers, install iCloud for Windows there, and log it running in the other account. This however basically means I cannot use my computer for a fair number of hours, and I've been busy enough with work the past week that I haven't the time or energy to afford to set this up and run it. I've had need of my computers too much for the past week.

Sporadic high-speed fan behavior ––– removing battery solves problem?

Similar Messages

Maybe you are looking for