Spinning fans

I have a Dell studio 1555 with ATI 3540. I have installed xf86-video-ati and acpi, also acpid is loaded at startup. The problem is that after some minutes the laptop is on a fan start spinning and its speed increase with time. With debian and windows i have not this kind of problem.
I tried to install ati proprietary drivers by automatic method (sh ./ati...) but i can't get the installation process finishing correctly
What could i do?
Last edited by jacopastorius82 (2010-10-30 16:54:20)

i installed catalyst 10.10 but at the boot, after gdm starts, the system freezes with a balck screen. i can't open consoles with ctrl+alt+F2...keyboard not responding i think... I had been able to boot just 1 time.
Things i did were just install catalyst-utils and catalyst 10.10, remove ati-dri and libgl, loaded fglrx module at startup (in rc.conf) and created a xorg.conf specifying fglrx as driver
EDIT, SOLVED:
forgot to add nomodeset in /boot/grub/menu.lst
Just last question
when a kernel update will come, do i have to reinstall catalyst drivers?
Last edited by jacopastorius82 (2010-10-31 15:22:58)

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Hey people!
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Message was edited by: Caldeira

Actually... it really solved the problem for me! My computer have sounded like a jet plane for the last couple of days. But I'm not sure if the only solution is to boot into safe mode. I recommend you to do like this:
1.) Remove the spotlight indexes and disable the service if you don't use it. You can use Spotless to do this. You find it here: http://mac.softpedia.com/progDownload/Spotless-Download-9834.html
2.) Reset the SMC. Om a MacBook, you turn the computer off and remove AC and the battery. Hold the power button for about 10 seconds. Insert the AC but NOT the battery and boot the computer. Shut it down and install the battery.
3.) After the SMC reset, boot the computer into safe mode by holding the shift key during boot up.
4.) Let the fans spin down in safe mode for a couple of minutes.
5.) Restart the computer into normal mode and the fans should now be spinning normally again!
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/D

Help! My fan is not spinning!

recently I've just posted about hard spinning fan
http://discussions.apple.com/thread.jspa?threadID=2358805&tstart=0
but today, it's not spinning at all (at least around 800 rpm)
yesterday, I booted to Windows 7 to play starcraft 2 (with high graphics settings)
I clearly can hear the sound of the fan + heat
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Run the hardware tests from you original install DVD (by holding d at Boot) and see if it reports any MTR (fan motor) or SNS (temperature sensor) errors, if so contact Apple about a repair.

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Hello everyone.
Has anyone encountered this problem that I'm having with my only 2 month old MSI GTX 760 Twin Frozr Gaming OC Edition card?
When I start up my PC, only one of the two fans will start to spin, first at normal speed but then it will soon accelerate to full speed. I guess that the card detects that one fan is not spinning so it will automatically accelerate the other to full speed for heat protection. When looking, I can actually see the not spinning fan blades do very small movement (1-2 mm) back and forth, like it's trying to spin, so there is power at least. Powering off the PC and restarting multiple times will not help at this point.
The weird thing is that if I lightly nudge the blades the fan will then start to spin and work normally again for maybe a week (5-15 PC start-ups on average), before the problem re-appears again.
The problematic fan is spinning freely if I take out the card and spin the fan blades manually, there is no more resistance than in the normally working fan. So it's not a case of broken bearings or dust in them, or any kind of physical obstruction.
It's a pain in the ass, to get the fan spinning again I always have to open my case to physically touch the fan blades. And that workaround only helps for maybe a week. I didn't plan on having to open my PC case every week when I bought this card.
I have updated drivers several times, and can't really believe this could be a software issue. The card is is only 2 months old, and was working perfectly for the 1st month.
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Thanks for your reply.
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Are you able to check with that information if there is a newer vbios available?
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Hi.
So I'm surfing the web (using firefox) have 2 tabs open and suddenly the fans on my macbook pro start to spin faster. Then they spin faster gain finally maxing out at 5360 rpm. The temperature all the time was never above 55 degress C. They spun at 5360 rpm for about 10 minutes and then spun down to a normal level of 3154 rpm.
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iMac G5 2.0GHz, 2GB RAM, 160GB HD, OSX 10.5, 17". Bought in October of 2005. Two matched Samsung 1GB RAM chips installed quite some time ago with no problems.
While it isn't the iSight model, my iMac has done the blank screen with fast spinning fan thing a few times, but it always recovers after I turn it off. Here's what happened:
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Hello.
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I've been having this same frustrating problem, with the same machine (A1150, 1.83Ghz) although mine does it with both the AC and the battery. I was hoping it was the battery and just replaced it (the old one was almost dead), to no avail.
I thought it was working okay in Windows under Bootcamp until one day it decided to show off the same black-out/wild spinning fans symptoms. Grrr.
I've since run the following repeatedly, all of which have come up with nothing: AHT, Memtest, Hardware Monitor, iStat. I've been furiously monitoring the logs and not seeing anything jump out. I also cleaned the caches with Leopard Cache Cleaner and OnyX, and did an archive & install of the OS a couple of times. Lastly, I created a new user to see if there were problems with my start-up. Problems persisted.
Right now the only time I can keep it running is if I'm in Safe Mode. Not helpful, particularly WRT making a backup (i.e., I won't be able to use Firewire ).
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Message was edited by: lynnbee
Message was edited by: lynnbee
Message was edited by: lynnbee

Macbook Retina, Loud Idle Fans, Fans start from downloading files

hello
i have a early 2013 retina 15" macbook pro
is it normal that the fans kick in from browsing in youtube? or when i download 2 big files at the same time.. like 500 MB for example
i think it cant be normal for a computer like this to have spinning fans when usage is so low
also my left fan makes a strange noise sometimes, on the right side you only can hear the spinning air from the fan, but not the fan itself,
on the left side you cleary hear a noise while the macbook is in idle, its not extreme loud, but you can cleary hear the fan fro distance when in idle
is this normal?
i trid everything, smc reset, completly reinstalled 10.8.3 but its still the same
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After following some advice from here, and reading many past threads, I installed a new Hitach Travelstar 7200rpm 100Gb HD into my Ti. The installation was a little fiddly but I got there in the end.
Since I installed it ive noticed a constant "spinning fan" noise coming from beneath the trackpad area, which is where the drive's located.
Is the constant "fan like" noise normal operation?
Everynow and then i'll hear louder "scratching" noises which from my understanding is normal HD operation, but the "fan like" noise concerns me.
Only I never noticed such a constant noise from my old 4400rpm drive.
Powerbook Ti 1Ghz Mac OS X (10.4.6)

I similarly recently installed a 60 GB Hitachi Travelstar 7200 rpm in my TiPB 867 replacing the original 40 GB 4200 rpm drive.
That spinning "fan like" noise you hear is normal, It is the drive itself. I had the noise with my 4200 drive and it took me quite a while to realise that the noise was not the fan at low speed. If the noise seems louder then it is because the drive is spinning much faster. When the fan(s) come on you will notice the noise difference. Actually I am now not sure of the speed advantage of 7200 v 4200/5400 because the fan(s) come on earlier than they used to, which is of course quite normal. I know the fans have no effect on the drive speed but it just seems to somewhat negate the speed increase when the fans come on earlier. And I suspect that the "average" home user can not really tell the difference between 5400 and 7200 rpm. Certainly more modern PBs than ours are better designed to handle higher speed drives.
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HTH
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Hi,
I installed a new internet hard drive to replace my corrupted hard drive. The new hard drive is WD 320GB. Somehow, i got it installed and work. I install leopard on it and it works well as far as this point. Now, I have a new problem. Before installing the hard drive, my iMac run very quiet. Now, as soon as I turn on my iMac, i can hear a very noisy and loud 'fan' sound. I do not know if it is hard drive spinning or one of the fan. I do not notice any weird sound except it definitely a very loud spinning fan sound. I do not have Apple Care or warranty with Apple. Any suggestion to isolate the problem pls ?
I use iStat Pro and have the following info:
- CPU fan : 800-900 rpm
- CPU and GPU temp : 40 - 60 C degree
- Hard drive fan : 5000 rpm
Another question is : when i take my old hard drive, i noticed it has 1 power cable, 1 SATA cable and 1 small cable with connect some kind of chip on my motherboard to a small chip on the right hand side of hard drive. It appears to me that Apple attached a small chip on the side of hard drive. And i do not know where to connect that wire to my new hard drive. So i just left it un-connected. Thought, i connect power cable and the SATA cable. Any idea what that wire used for ?
Thanks
Message was edited by: DeathNote

Hi Dennis,
Thank for informing me the heat sensor. Basically, i can take the heat sensor out from my old internal hard drive and stick it on the new drive ? If so, how do i do it ? can i use any glue to stick heat sensor on new drive ?
Also, I just figure something. I opened the front cover, then run iMac. I noticed the noisy sound, i thought it might be the fan or the hard drive. So , i disconnect the fan power cable and restart the computer. Now, it runs very quitely. I can not hear anything noise as all. No thing. So i assume that the hard drive is not the problem. As soon as i plug back the power cable for the fan. The noise come back.
Is there a software to control the speed of the fan ? Using Istat, i have the following info :
- CPU : 42 C degree
- HD : 29 C degree
- GPU : 43 C degree
- Ambient : 22 C degree
- mem controller : 37 C degree
- CPU fan : 860 rpm
- HD fan : 5000 rpm
- Optical fan : 800 rpm
Thank you .
p/s: inside my iMac is different than in the picture.

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1. reset the SMC a bunch of times (shut down, unplug all cable, unplug powercord from computer, wait 15+ seconds, plug in power, plug in keyboard, restart.) Fans kept going high.
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