Installed SSD, now the fan is running at top speed

Thought I would be brave and install an SSD in my new June 2010 Mac Mini. I have done this for an older Mac Mini, and my iMac, without any problems. It boots fine, but the fan is now constantly whirling at top speed (iStat shows it topping out at around 5K revs). The only temp sensor I removed was the one attached to the HDD, which I reattached to the SSD. I am pretty sure I got the cable attached to the sensor correctly connected back to the logic board. Can one mis-installed/mis-aligned temp sensor cause the fan to max out as it appears to be doing?

Seems the answer to my question is yes. Opened up the case again and checked all the connectors, and found one of the temp sensors unrelated to the HDD/SSD had been bumped, and was slightly loose. Made sure all the connectors/connections I could see were properly seated, and now the fan is back to being basically silent (iStat shows it spinning at 1800 revs).

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Installed SSD, now the fan runs a lot- what can I do?

Hi!
I installed a 500GB SSD into my 13" Mid-2010 MacBook Pro (still running Snow Leopard) and all is well, except that I see not much improvement and the fan now runs almost incessantly despite me not running much (checking Amazon, have two browser windows open, during a very puny edit on Final Cut Pro with a single video track and stereo sound on two tracks).
Now I know that the faster SSD (and, allegedly, its greater power consumption) will make everything else work "harder" but I wonder- what can I do to improve the cooling or minimise the load on the computer?
Because it really is so notable that I am almost inclined to downgrade once more after just 12 hours.
I have reset the SMC and it did help a LITTLE but not nearly enough to prevent me from losing my only marble and wanting to do a Vincent Van Gogh.

Find the password or reset it using the lost password link
LN

I have a dual 1.8 ghz pwer pc g5 and sometimes i put it in sleep mode and come home on my lunch break and the fan is running at full speed and the computer has frozen up...what is going on here?

and sometimes i put it in sleep mode and come home on my lunch break and the fan is running at full speed and the computer has frozen up...what is going on here? is it a virus or has my computer been hijacked? it cant be good for the computer...anyone ever had this problem..?

Your problem has been reported many times, but causes are as varied as individuals.
Can we assume that a hard shutdown allows a normal restart?
Can I assume that you have used Disk Utility from your OS X install disc to repair the hard drive directory? The freezes and hard shutdowns require that the drive be repaired (not permissions) or soon the machine won't boot at all.
If the root issue is software related, in Console (the application) under Logs, there should be loggings around the time of sleep and logs that tell you what process went wild and froze the machine.
Network activity is also a common casue.
Other info:
http://support.apple.com/kb/ht1776
If hardware related, such as an external drive, other USB device (Wacom tablet) or USB PCI card, ejecting, disconnecting, removing, or in the case of the Wacom, updating drivers, are all potential remedies.

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.

Post serviced IMac and the fan is running at top RPM.

I had my IMac serviced doe to the HDD dieing. When I got it back, the HDD fan is running at max RPM. I've tried to reset the PRAM (7 times, over and over) and tried to reload the SMC patch and no luck. Apple Store is over 2 hours away so I'd like to save 8 hours on the road by figuring our if there is anything else that I can try to fix this.
C2Duo IMac with Tiger and the 'fans played on' from the moment I got it back and started restoring the data.
Any ideas?
Also, a new AppleCare agreement talks about 'onsite service'. Do they actually do onsite service? Does one have to request it? It wasn't offered when I called in after finding the fan issue.
Thanks!!!

So, I called AppleCare and they walked me through an 'SMC reset' routine and now SMCFANCONTROL doesn't run AND all the fans sounds like they are running at full speed.
I got a call that they want to swap my system rather than have me wait for a new sensor. I wonder what issues I might have with a 'refurb' system.
There is another issue, there is a smear of some kind of glue on the screen from the service experience.
It's been interesting dealing with their support...
I can't stand the whine of the fans and now am back on Windows for most things. Yippee...

HP Spectre XT 13-2005tu - Cooling Fan Countiniously Running At Top Speed From Start Up

Ok, Here's a puzzler if anyone can help. HP Spectre XT 13-2005tui7-3517U @ 1.90Ghz4.00 GB Ram256 SSD HD Has been a great laptop, very happy with it, small light powerful, etc, good battery life, everything I needed as student and as someone who travels a lot for work. Towards the end of 2014 the hinges on the screen gave out. Outside of the warranty period HP were kind enough to fix it, however this didnt get completed until approximately Feb 2015 - when I returned from travelling. At the time they gave it a full service - cleaned it up, updated bios, replaced fan. The cooling fan was replaced as they claimed it was noisy, but to be honest I had never noticed it. As soon as I took it home, the fan went crazy. From the moment the power button was pressed it would run flat out and non-stop. Sometime it would change from flat out to nothing every two seconds for 5 minutes - I took a video of this at the time. I had planned to take it back to the service centre but after a few hours it returned to normal. There were no problems for a while, every now and again it would startup and run flat out constantly for an hour or so but would always go back to normal. A couple of days ago it started this again but just won't stop. The moment the button is pressed it is running flat out until the moment it goes to sleep or is turned off. It has also started with the occasinoal intermittent 'running flat out, then slowing down then flat out then slowing down' continiously over about 5 mins (I took a small video of this as well - https://youtu.be/P2ybdunCZf8). I have: - Updated anything and everything. - Formatted the pc and reinstalled windows. - Rolled back and reinstalled the bios. - Made sure the bios setting to constantly run the fan was off. - Checked that the fan was sqeaky clean. - Installed and monitored temps with HW Monitor - fans run flat out at any CPU temp. - Ran HP system diagnostics that show no errors. - Tried hard resets. - Also checked the CPU usage - fan runs at high speed whether 5% or 95% is being used. - Tried different power settings and changing the CPU Cooling policy within the power settings. I am out of ideas. I have a feeling it might be a hardware fault and that I'm doomed but I am keen to know if anyone else has any thoughts, and espeically if there is anything HP can do or recommend. Cheers

Hi , Thank you for your query. I understand that you had the display replaced by HP as it quit due to a hinge issue. When you got it back after they had done full service - cleaned it up, updated bios, replaced fan. The cooling fan was replaced as they claimed it was noisy, but to be honest you had never noticed it. As soon as you took it home and powered it on the fan went crazy,running at full speed non stop. The speed sometimes would change from full to nothing every 2-5 minutes. After a few hours it seemed to settle down and work normally.Occasionally the issue would return for a hour but then return to normal.A couple of days ago the issue returned but now remains constant. Here is a link to HP Notebook PCs - Fan is Noisy and Spins Constantly, PC is Warmer than Normal. As this did start just after the repair, I would contact HP support, explain the issues and get your options if the above has not helped.Please contact HP support at Contact HP Support. To say thanks for replying please click the thumbs up icon below.If this fixed your issue, be sure to let people know by choosing solution provided. Best of Luck!!

Fans still running at high speed after smc reset

I have an i Mac Version 10.6.7, 4 GB RAM and 2.66 GHz Intel Core i 5 and since yesterday the fans are running at high speed. I tried to reset the SMC as instructed on Apple Support Site but it won't help.
Does anyone have an idea?
Thanks.

Try the reset again. Sometimes it takes several. This time leave it off wall power for an hour before holding in the power button.
If that doesn't help, run the Hardware Test in Extended.
http://support.apple.com/kb/ht1509

Just had my mac mini's superdrive replaced by Apple, I have it back now and the top get so hot you cant touch it, I installed fancontrol and it climbs to 100 C but dont think the fan is running as it says 000rpm?

Just had my mac mini's superdrive replaced by Apple, I have it back now and the top get so hot you cant touch it, I installed fancontrol and it climbs to 100 C but dont think the fan is running as it says 000rpm?

Have you spoken to whoever replaced the superdrive? Why not take it back there?

Installed Firware Update on my iMac, now the fan won't stop running.

I successfully installed the firmware update on my 20" Intel Core Duo 2 iMac. Everything was fine, it restarted all was working until I put it to sleep. This is when the fans came on and never turned off. I tried to reset the SMC by following the instructions to unplug everything and the power. I even left it overngiht unplugged. But now the fan is on high all of the time. It never even changes pitch like its stuck at one speed. I'm waiting for the applecare line to open at 9AM EST.
I have to say that I have been an apple customer for many years like many of you and I'm a bit bothered by my experiences so far with the new Intel line of computers. I also bought a new MacBook Pro that they had to replace after 4 days of use due to a fan noise that was abnormally high and pitched. The Mac Genius at the 5th Ave store didn't even try to take a look at it. He heard the words loud fan noise 4 days old and they replaced it on the spot. This experience of course reinforced my love of Apple. Lets see HP do that as quickly as Apple did. But to now have another problem with the iMac leaves me disheartened. I have more important things to do than run down to the Apple store again.
I'll let you know how it goes.

Yes, I checked to make sure that the Firmware and EFI were the correct versions. We did an SMC reset, a PRAM reset etc. They replaced the iMac I just brought home a new machine. They couldn't figure out what was wrong with it either. The fan was running even after you put it to sleep. So they just replaced it. It will go into the refurbished line now.
As an FYI the Mac Genius told me, so take it with a grain of salt, that they have so many swaps on the new Intel Core 2 Duo machines that they have been shipping out almost as many as coming in. They have become so good at doing swaps in the 5th avenue store that they had us turned around in 5 mins.
This is the 2nd Intel Core 2 Duo in as many weeks that I have had swapped.

I just replaced my hard drive on my imac and now when i turn the computer on the fan is running and slowly gets louder and louder. how do i turn it off?

I just replace my hard drive on my imac and now when i turn the computer on the fan starts running and keeps getting louder. How do i turn it off?
thanks.

If your machine was made after 2009 you probably installed th wrong HD. Beginning in 2009 Apple began using HD's that had an integrated fan sensor. If you did not use one of these drives then that is the problem. You should contact OWC (www.macsales.com) or visit your local AASP and they will help you select the correct HD to use.

I have a new Macbook Air and for the last few days the fan had run continuously, this is the first time it has ever run, and now it won't stop, the fan starts up as soon as I turn it on. The computer is not hot.Any ideas on how I can fix this please ?

I have a new Macbook Air, 6 months old, and for the last few days the fan had run continuously, this is the first time it has ever run, and now it won't stop, the fan starts up as soon as I turn it on and the computer seems to running more slowy.The computer is not hot but I am worried it may burn out,.Any ideas on how I can fix this please ?

Hello dwb,
Here is the screen shot, just the top half, there are another 10 pages, but I guess this should enough for you to have an idea of waht is going on, bit small I am afraid. No, I don't have any apps setup to run when I open my computer, the kernel, varies between 290 and 305 per cent ish.
Would that PRAM thing help ? I think it may be the computer itself, well something inside, as this the first time that the fan has ever started running since I have this computer, even when I have 3 or 4 apps running.
Thank you again for your advice,
Regard,
Beauty of Bath

Do the 2011 Macbook Pros with an Apple installed SSD have cooling fans?

Do the 2011 Macbook Pros with an Apple installed SSD have cooling fans? In other words, I pre ordered the 256 SSD option with my purchase from Apple. I have searched and searched the internet for a clear answer. I have called Apple and have gotten contradictory answers. Can anyone definitively answer this question?

It's unbelievable that anyone purporting to represent Apple could have misinformed you in such a ridiculous way. Apple has never produced a MBP that didn't have one or more cooling fans in it. The percentage of total heat generated by a MBP that comes from its hard drive (or SSD) is tiny — I would guess it's considerably less than 5%. The notion that the machine could dispense with cooling fans as a result of switching from a conventional drive to a SSD is laughable.
I can only assume that you posed the question in such a way that it was not clearly understood by the people responding.
Message was edited by: eww

Can an error in battery cause a slow CPUS and the fan to run non-stop?

tthe battery need serviced but my computer runs slow and the fan is running non-stop. MacBook Pro 13" purchased around 2011.

OK, you really need to dump that Windows attitude quickly, because what worked over there is completely useless here. I never understood the "upgrade didn't work obviously, because this or that happened, so how do I downgrade." I hang out around here, and I haven't seen many comments about fans running full blast after the updates. I did them, and nothing happened.
First, you can't downgrade the firmware EFI update. I think if you tried, it would brick your MBP.
You could reinstall Lion if you wanted, but that's really a pain, and once again, one of those Windows things that people always do that wastes time. A security update and Remote Desktop Client (which only runs if you start it up) would not effect your fan speed.
Apple does have "restore points", but it's a real backup system that requires a backup drive. It's called Time Machine and it's preinstalled on your Mac, easy to use, and allows you to go as far back in time on your Mac as the size of your backup drive will allow.
Now, after all that, let's try to figure out what's going on with your fans. First, did you do the EFI update correctly? Meaning did you do it when the MBP was actually plugged into the wall? What are you running? Games? Videos? Something else?

Reapplied the thermal paste, now the fans kick in too early - downgrade FW?

First of all, I have not forgotten to attach the temp sensor as previously mentioned. I was quite lucky that everything went well.
My MBP is now 60 C top at almost full load (doing video at 80% load) and runs 48 in idle.
Which is incredible but it's also loud. Even when idle the fans run faster than the minimal speed, which is obviously caused by better heat conductance. When under load the fans quickly begin to spin full speed. As I said I havn't topped the 60 C mark yet.
Partly I think this has to do with the SMC firmware update, as Apple tweaked the fans to spin up earlier.
What I'm looking for is a way to get the old threshold setting back (the one before the smc firmware update). So that my MBP is as cold as possible but also more quiet than now.
And I read that there is a way of editing some powermanagment settings in order to change the threshold but havn't been able to google it.

Maybe it's my english, but the fans don't go full speed all the time. Now as I barely started the MBP and just surfed the internet a bit, I have fans running at their minimum.
And they stay on minimum as long as I don't do any harder work. Let's say start playing iTunes with visualization on.
As for the skills. I'm not professionally trained, but I've been building my own PCs for a couple of years now. Never laptops, obviously, as they come already built. And yes I also have a copy of the Service Manual that was floating around. I think I tend to infrom myself very carefully before doing any such work. That's probably I'm a medical student, which brings us to thermodynamics.
Apple defenitely applied too much termal paste, which has the effect that instead of filling in only the microscopic spaces of air between the heatsink and CPU, the thermal paste actually forms a layer between the CPU and heatsink. And generally speaking the thermal grease is a worse conductor than the CPU/Heatsink junction, but still much better than small spaces of air that would be between the CPU and Heatsink if no thermal paste was applied.
Strangely my girlfriend has a MBP which doesn't get as hot as mine. But her was bought in august, mine in april, so Apple might have looked into the problem themself.
About the Apple support thing:
I'm from Slovenia, the official Apple seller ( www.epl.si ) has a very rude way of customer support. Luckily I live very near the Austrian border, so I bought my MBP in Austria.
Well it seems to me that controlling the fans isn't yet possible on the MBP, as noone was able to point into any direction.

My imac shuts down unexpectedly and now a fan is running??

Hello,
I have been working on my iMac all morning and it shut down twice within a half hour and I had to press the start button on the back to get it going again. Now their is a loud fan running and I have no idea what is going on. Help much appreciated. Thanks in advance!

Hi ebeugs,
Thanks for visiting Apple Support Communities.
If your iMac shut down unexpectedly, and the fan is running unusually fast or loud, you may need to reset the System Management Controller.
I recommend following this troubleshooting method:
Before Resetting the SMC
Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.
Press Command + Option + Escape to force quit any application that is not responding.
Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
Restart your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Restart.
Shut down your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.
If the iMac unexpectedly shuts down again, or the fan continues running unusually fast or loud, follow these steps:
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
You can find these steps and more information about resetting the SMC here:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
Best Regards,
Jeremy

Installed SSD, now the fan is running at top speed

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