Macbook didn't fall asleep and the fan was running?
I closed my macbook this afternoon and expected it to fall asleep like every other time, but after getting back this evening, I noticed the fan was running as if it was hot, it wasn't asleep, and I had to reboot using the power button in order to get back into Mac OSX. What is going on here? Does this happen on occasion? Or do I need to take it in and get it fixed? This is the first time it has happened and I've had it for about a month and a half. Thanks for your info.
No. If something would have overheated, it would have shutdown completely, and the fan wouldn't have been running.
When your OS stops communicating with the hardware, the fan kicks in to protect the computer from catastrophic damage. Same with iMacs, Power Macs, etc. By running, it actually protected the MacBook. You should be fine.
-Bmer
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Apple - Support - Check Your Service and Support Coverage -
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MacBook Pro - model: MacBookPro9,2
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0 B Page-outsYou certainly don't have any third-party software that's causing your sluggishness.
Sometimes, a failing hard drive can cause sluggish behavior, however.
Boot into your Recovery partition (hold down the command and R keys whilst booting) and once at the Recovery screen, select Disk Utility. Select your hard drive (in your case, the aptly named "Macintosh HD") and click on the "Verify" button. If you get green text telling you that everything appears to be OK, then it's not your hard drive slowing things down. If you get red text telling you that the disk needs to be repaired, click on the "Repair" button. If the disk can be fixed, it will be. If not, call back.
Clinton -
My MacBook Pro is really hot and the fan is on constantly. It didn't use to do this, does anyone know why this is happening? I have a very short battery life, so I have to keep it plugged in probably more than I should.
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time, then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
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My mid-2012 MacBook Pro has the fan constantly running. As soon as I turn it on. My MBP won't even be hot and the fan is running. How can I fix this?
If you are still under warranty and/or have AppleCare, call them. Let them deal w/it.
OOW try the following: http://support.apple.com/kb/HT1411 Apple Portables: Resetting the System Management Controller (SMC) -
When I'm streaming videos from my Macbook Air to my AppleTV, my Macbook Air gets rather hot and the fan works hard and is loud trying to keep the laptop cool. Is this harmful to the laptop? Is this normal?
My MBA fans start running when I play video too - the CPU's video processor is working pretty hard to decode the video. The fans job is to provide better airflow. The time to worry is when you play video and the fans don't run.
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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? -
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 just had the seagate hard drive replaced and the fan is running loud
I just had the seagate hard drive replaced and the fan is running loud
Is your iMac a late 2009 or newer model? Did Apple do the replacement or someone else? There is a documented issue where Apple changed the hard drive heat sensor from outside the drive to inside. If you install a replacement hard drive in a late 2009 or newer iMac that's not an Apple-sourced drive, two things happen ... the fan runs like crazy and the Apple hardware test doesn't work properly.
You can read these OWCS blogs here and here on it. -
over the last two days since i updated my software, my laptop seems slower, the fans are running louder, and i keep feeling mild shocks (even without the charger). my hands feel really tingly and a little sore. what is going on?
cheesecakeyumm,
have you tried resetting your MacBook Pro’s System Management Controller? (I don’t know if that would have any effect against mild shocks, though.) -
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... -
Today while working on my system, it shut down unexpectedly. And, subsequently the fan switched on, which has been running continuously for the past couple of hours. Since then have tried restarting the system, but it won't.
Hello atanu69,
I'm sorry to hear you are having trouble getting your MacBook Air to turn on. The resource below will offer some troubleshooting steps to try to resolve this issue.
If your Mac won't turn on - Apple Support
https://support.apple.com/en-is/HT204267
I hope this information helps ....
- Judy -
I turned on my 2011 IMac and the fan is running very loud. What is the problem?
Please help me figure out why my fan is running so loud after turning it on tonight. I have shut it down and turned it on again and rebooted it and it is very loud.
Thank you.timfrombrisbane and ScuseMe are right.
Apple engineers say, that to reset SMC, you follow the procedure outlined in KBase Article HT1379.
How much you've posted to the forums is irrelevant rkaufmann87. You're not one of the engineers who created the product. The engineers who created the product, say to follow the steps outlined in that article HT1379.
The procedure you listed is incorrect and will not work to reset SMC on an iMac. Read the article. It's there in black and white, with very clear steps. As the article states, you have to unplug the power cable from the back of the machine, wait 15 seconds, plug it back in, then wait 5 seconds before turning it on. The article says nothing about holding the power button for 5 seconds.
People come in here, for computer science advice. I cited my source, for this scientific procedure. My source, is an article from the computer scientists who created the iMac product. I'm also an Apple certified repair technician - so I listen to what the Apple engineers say.
Can you cite your *official* source for your incorrect procedure? Didn't think so. -
It also makes some pretty concerning noises from the hardware. I've only been doing web browsing, nothing significant and no downloads. I tried doing a software update and when I went back to the updates page the one I had just done was still there. What can I do about this?
You are still under warranty. Call Apple Care. Make sure you get a case number as all repairs have an additional 90 days of warranty.
#1 - You have 14 days from the date of purchase to return your computer with no questions asked.
#2 - You have 90 days of FREE phone tech support.
#3 - You have the standard one year Apple warranty.
#4 - If you've purchased an AppleCare Protection Plan, your warranty last for 3 years. You can obtain AppleCare anytime up to the first year of the purchase of your computer.
Take FULL advantage of your warranty. Posting on a message board should be done as a last resort and if you are out of warranty or Apple Care has expired. -
why is my iMac fan running & very loud? just turned it on after being off for the weekend. this has never happened?
Hi ..
Try an SMC reset as suggested here > iMac: Fans run at full speed after computer turns on
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