Fan starts while sleeping - also wakes itself up sometimes.

I've got a Mac Pro 2.66 ghz with 16 gigs of ram. I'm running 10.6.8.
The computer is doing 2 strange things:
1. Every few hours, while asleep, the fan starts up for about 5 seconds - even though the computer is cool.
2. Every now and then it wakes itself up.
I've ignored this problem for a long time but now I'm going to be moving the computer into the bedroom and this is not condusive to sleeping.
Anybody know what's going on and how to fix it?
Thanks.

Neal Fox wrote:
Do you think that's why the fan would start up when it's supposed to be asleep?
It is the simplest explanation but there could be other causes.
Even if there is no device requesting your iMac's attention "wake for network access" will still cause it to wake periodically, just to inform your router that it is still present. It should do this then return to sleep fairly quickly. The display will remain dark.
Whenever you suspect a problem related to fan operation or power, including sleep, an SMC reset is also recommended. It should not be necessary for the fan to run so fast as to be objectionably loud, but some people are lighter sleepers than others. Perform the SMC reset; it may help.

Similar Messages

My MacBook Pro fan runs while sleeping

My MacBook Pro fan runs constantly, even while sleeping.
The problem started about 2-3 months ago, but was pretty rare. When I noticed the problem, I would restart the computer and it would stop for 1-2 weeks. More recently it has become more constant, and now it always has the fan running when it's sleeping.
Any ideas on what I should do? Thanks!

Mine too. If you're worried you might like to try a laptop cooler like one of these:
http://www.amazon.co.uk/s/ref=sr_kk_2?rh=i%3Aaps%2Ck%3Alaptop+cooling+pad&keywor ds=laptop+cooling+pad&ie=UTF8&qid=1344763538
Not sure how well they'd work on a Macbook as there aren't any vents on the underside but it couldn't hurt and they're quite cheep.

Strong fan noise while sleeping

Yesterday before going to sleep, I put my imac to sleep and when I woke up today, the fans were going berserk, and the imac was frozen. So I reset from the back. It's the second time it does this.
I reseted the pram, booted in safe mode, repaired permissions and disk and I did the thing where you remove all usb device and unplug the power cord ( don't remember how it's called ).
Imac G5 1.9GHz 1.5Go DDR2 SDRAM Isight
I'm running mac osx 10.5.3
Anyone know whats wrong

Barry is talking about the Hardware Test DVD that comes with the System Install DVD.
Try the following before using the Hardware Test DVD:
http://docs.info.apple.com/article.html?artnum=301733 iMac G5: How to Reset the SMU (iMac G5, the iMac G5 (Ambient Light Sensor), and the iMac G5 (iSight)).
BTW: The iSight models are NOT part of any of Apple's extension repair programs nor are they user repairable (except for RAM installation). If none of the suggestions work, you will need to take your computer to your nearest AASP for a look-see.
Hopefully you have AppleCare.

IMac wakes itself up, then puts itself back to sleep

My iMac constantly wakes itself from sleep. The problem seems to have started around the time that I upgraded to Yosemite. If I leave the computer in sleep mode overnight, it will happen dozens of times throughout the night. The computer wakes up, but the monitor never comes on. I hear the hard drive spin up, I see my mouse’s LED turn on, then after a few seconds it goes back to sleep.
I have tried everything in this KB article (https://support.apple.com/en-gb/TS5357) with no luck. I have done SMC and PRAM resets with no luck. I’ve tried unplugging all USB devices prior to sleep in case one of them was waking the machine, with no luck. I have no Bluetooth devices, and Bluetooth is turned off. “Wake for network access” is turned off. I have no scheduled power or wake/sleep events. I have no file or device sharing enabled.
If I do a “wake reason” terminal command, I have page after page of the following message with varying timestamps: “Mar 28 11:45:20 iMac kernel[0] <Notice>: Wake reason: RTC (Alarm)” The info I’ve found about this says, “Real Time Clock Alarm, is generally from wake-on-demand services like when you schedule sleep and wake on a Mac via the Energy Saver control panel. It can also be from launchd setting, user applications, backups, and other scheduled events.” Again, I have no scheduled wake settings, “wake for network access” it off, and I have no applications that should be waking the computer.
I’m at my wits’ end with this problem. At this point, the only thing I can think to do is a full reinstallation of OS X, but I’d really rather not have to go that far. Any suggestions?
Specs:
iMac (20-inch, Mid 2007)
OS X 10.10.2
Processor: 2.4 GHz Intel Core 2 Duo
Memory: 4 GB 667 MHz DDR2 SDRAM
Graphics: ATI Radeon HD 2600 Pro 256 MB

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

Mac won't sleep but keeps trying to wake itself

Whenever I put the lid down or press the sleep button, the indicator light doesn't start flashing but just stays on and then every 30s or so the comp makes a whirring sound like its trying to wake itself or open even though its not asleep. Once in a while it does actually go to sleep but then after an hour or so it trys to wake itself up again repeatedly. Help!

I have the same problem; it is caused by the USB mouse, and wasn't cured by restarts or resetting SMC. I also tried the combo update on top of the regular 10.4.9 update and still no dice.
I had this same problem with my old PowerBook using earlier versions of Tiger. The only solution was to go back to Panther which allowed me to sleep without unplugging the mouse.
Apple really needs to solve this sleep vs USB problem. It has been popping up in numerous versions of OS10. Does anybody know a workaround besides unplugging the mouse every time I put it to sleep (really *****) or backdating to 10.4.8?

MBP Wakes itself from sleep

Hi, I've searched the forums and can't seem to find anyone else with the same issue.
My brand new MBP 15" 2.4 is waking from sleep all by itself, without me touching it. I've tried sending it to sleep on it's own, with displays and ext. HD's disconnected, I still get the same issue.
I've just caught my computer running in my bag with the lid shut and the fans absolutely blazing. Any thoughts?
It's only recently started doing this, and the only thing I can remember that is different is the recent firmware update - would this have anything to do with the problem I'm experiencing?

I experienced random wake up from sleep followed by an ejecting noise sound from the optical drive just like how one usually wakes it up from sleep.
My troubleshoot included the following:
1. Uncountable SMC reset
2. Go to this forum, read, and post
3. Re-install OS X 4 times
4. De-attach all peripherals, reboot, turn AirPort/Bluetooth off, with no Applications/Dashboard running, select Sleep from Apple menu
5. Close the lid manually
6. Keep a running log of time when MBP wakes up by itself, and how long it sleeps, brought it to my first trip to Genius Bar.
7. First trip to Genius Bar, and was sent home as the symptom did not reprodruce in front of them since it was random despite the log I showed
8. Second trip, symptom occured, problem acknowledged, and got it repaired. It was the Logic Board.
It wasn't a very pleasant experience at all, but ever since the fix, my MBP sleeps like a baby.

MacBook starts up for 1 second while sleeping

Recently my MacBook has been starting up in it's sleep for a split second and then going back to sleep. What it does:
The SuperDrive? makes that loud access sound
The monitor flashes (when it's closed I can see it through the Apple logo).
The fan begins revving and the computer begins to get warmer and the fan starts spinning faster.
I have no clue how to troubleshoot this one, and I'm usually the Mac Guru so if anyone else knows of this problem, and better yet, knows how to remedy this problem, it would be greatly appreciated.

I've had that problem, too.
My advice:
First, go into Energy Saver and make sure it isn't trying to wake up on a schedule. Sys. Prefs. > Energy Saver > Options > Schedule...
If that isn't it, Open your Activity Monitor. Make sure all the apps you thought were closed got closed. I've had some stick open even after Command-Q.
Finally, I would suggest that if you don't need to leave any apps open, try logging out. It will kill everything, and keep your computer secure.

Why when i set my mac in sleep it starts alone and also complete stop without I do anything (Mac mini Mid 2011 - Yosemite)

Why when i set my mac in sleep it starts alone and also complete stop without I do anything (Mac mini Mid 2011 - Yosemite)

in response to lllaass
here what I copied from Console:
27/12/2014 02:29:58,457 WindowServer[185]: WSGetSurfaceInWindow : Invalid surface 1336265605 for window 268
27/12/2014 02:30:02,516 WindowServer[185]: WSBindSurface : Invalid surface 1040636110 for window 266
27/12/2014 02:30:17,370 com.apple.xpc.launchd[1]: assertion failed: 14B25: launchd + 160118 [55B9FF23-B298-321A-B776-CF7676586C04]: 0xe
27/12/2014 02:30:17,371 com.apple.xpc.launchd[1]: assertion failed: 14B25: launchd + 160118 [55B9FF23-B298-321A-B776-CF7676586C04]: 0xe
27/12/2014 02:30:18,819 Office365Service[2012]: WARNING: The Gestalt selector gestaltSystemVersion is returning 10.9.1 instead of 10.10.1. Use NSProcessInfo's operatingSystemVersion property to get correct system version number.
Call location:
27/12/2014 02:30:18,819 Office365Service[2012]: 0   CarbonCore                          0x901777e7 ___Gestalt_SystemVersion_block_invoke + 135
27/12/2014 02:30:18,819 Office365Service[2012]: 1   libdispatch.dylib                   0x960dc130 _dispatch_client_callout + 50
27/12/2014 02:30:18,819 Office365Service[2012]: 2   libdispatch.dylib                   0x960dc0b5 dispatch_once_f + 251
27/12/2014 02:30:18,819 Office365Service[2012]: 3   libdispatch.dylib                   0x960dd0d8 dispatch_once + 31
27/12/2014 02:30:18,819 Office365Service[2012]: 4   CarbonCore                          0x90109fb8 _Gestalt_SystemVersion + 1050
27/12/2014 02:30:18,819 Office365Service[2012]: 5   CarbonCore                          0x90109b69 Gestalt + 150
27/12/2014 02:30:18,819 Office365Service[2012]: 6   Office365Service                    0x000589a3 Office365Service + 358819
27/12/2014 02:30:29,794 warmd[36]: [_bootcachectl_playlist_for_file:3197] Unable to generate playlist for file: 2 No such file or directory
27/12/2014 02:30:29,794 warmd[36]: [_bootcachectl_playlist_for_file:3197] Unable to generate playlist for file: 2 No such file or directory
27/12/2014 02:30:29,797 warmd[36]: [_bootcachectl_playlist_for_file:3197] Unable to generate playlist for file: 2 No such file or directory
27/12/2014 02:30:29,797 warmd[36]: [_bootcachectl_playlist_for_file:3197] Unable to generate playlist for file: 2 No such file or directory
27/12/2014 02:30:29,797 warmd[36]: [_bootcachectl_playlist_for_file:3197] Unable to generate playlist for file: 2 No such file or directory
27/12/2014 02:30:29,799 warmd[36]: [_bootcachectl_playlist_for_file:3197] Unable to generate playlist for file: 2 No such file or directory
27/12/2014 02:30:29,801 warmd[36]: [_bootcachectl_playlist_for_file:3197] Unable to generate playlist for file: 2 No such file or directory
27/12/2014 02:30:30,870 xscertd-helper[2020]: ldap_search_ext_s returned -1 - Can't contact LDAP server when searching for bdb suffix, exiting
27/12/2014 02:30:30,883 com.apple.xpc.launchd[1]: (com.apple.xscertadmin[2020]) Service exited with abnormal code: 1
27/12/2014 02:30:30,928 coreaudiod[1249]: 2014-12-27 02:30:30.927642 AM [AirPlay] Power: SystemWillSleep
27/12/2014 02:30:30,928 coreaudiod[1249]: 2014-12-27 02:30:30.927798 AM [AirPlay] BTLE client stopping to browse for AirPlay Solo Target Presence.
27/12/2014 02:30:30,928 coreaudiod[1249]: 2014-12-27 02:30:30.928007 AM [AirPlay] BTLE discovery removing all devices
27/12/2014 02:30:30,929 coreaudiod[1249]: 2014-12-27 02:30:30.929458 AM [AirPlay] BTLE client stopped to browse for AirPlay Solo Target Presence.
27/12/2014 02:30:30,931 watchdogd[162]: [watchdog_daemon] @(         pm_callback) - ref=0x0 msg_type=0xe0000280 msg=0x2a0005
27/12/2014 02:30:30,931 watchdogd[162]: [watchdog_daemon] @(    wd_daemon_thread) - events buffer: 65r1069 3634s1069
27/12/2014 02:30:30,965 Office365Service[2012]: System shutdown notification
27/12/2014 02:30:31,001 WindowServer[185]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x7fbf43423ed0(2001)
27/12/2014 02:30:31,044 identityservicesd[1311]: <IMMacNotificationCenterManager: 0x7ffac2c4fef0>: notification observer: com.apple.iChat   notification: __CFNotification 0x7ffac2d4efa0 {name = _NSDoNotDisturbEnabledNotification}
27/12/2014 02:30:31,044 imagent[1305]: <IMMacNotificationCenterManager: 0x7fde8a42c1e0>: notification observer: com.apple.FaceTime   notification: __CFNotification 0x7fde8a54a860 {name = _NSDoNotDisturbEnabledNotification}
27/12/2014 02:30:31,089 WindowServer[185]: device_generate_lock_screen_screenshot: authw 0x0(0)[inf, inf, 0, 0] shield 0x7fbf43423ed0(2001), dev [1680,1050]
27/12/2014 02:30:31,000 kernel[0]: PM response took 168 ms (1194, UserEventAgent)
27/12/2014 02:30:31,105 WindowServer[185]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x7fbf43423ed0(2001)
27/12/2014 02:30:31,180 apsd[59]: Peer [pid=1203] requested push wake but lacks APSPushWakeEntitlement
27/12/2014 02:30:31,228 imagent[1305]: <IMMacNotificationCenterManager: 0x7fde8a42c1e0>:    NC Disabled: NO
27/12/2014 02:30:31,228 identityservicesd[1311]: <IMMacNotificationCenterManager: 0x7ffac2c4fef0>:    NC Disabled: NO
27/12/2014 02:30:31,237 imagent[1305]: <IMMacNotificationCenterManager: 0x7fde8a42c1e0>:   DND Enabled: YES
27/12/2014 02:30:31,237 identityservicesd[1311]: <IMMacNotificationCenterManager: 0x7ffac2c4fef0>:   DND Enabled: YES
27/12/2014 02:30:31,237 imagent[1305]: <IMMacNotificationCenterManager: 0x7fde8a42c1e0>: Updating enabled: NO   (Topics: (null))
27/12/2014 02:30:31,237 identityservicesd[1311]: <IMMacNotificationCenterManager: 0x7ffac2c4fef0>: Updating enabled: NO   (Topics: (null))
27/12/2014 02:30:31,237 identityservicesd[1311]: <IMMacNotificationCenterManager: 0x7ffac2e30040>: notification observer: com.apple.iChat   notification: __CFNotification 0x7ffac2c43f40 {name = _NSDoNotDisturbEnabledNotification}
27/12/2014 02:30:31,244 identityservicesd[1311]: <IMMacNotificationCenterManager: 0x7ffac2e30040>:    NC Disabled: NO
27/12/2014 02:30:31,249 identityservicesd[1311]: <IMMacNotificationCenterManager: 0x7ffac2e30040>:   DND Enabled: YES
27/12/2014 02:30:31,249 identityservicesd[1311]: <IMMacNotificationCenterManager: 0x7ffac2e30040>: Updating enabled: NO   (Topics: (null))
27/12/2014 02:30:31,000 kernel[0]: PM response took 347 ms (71, blued)
27/12/2014 02:30:49,000 kernel[0]: PM response took 3456 ms (31, powerd)
27/12/2014 02:30:49,000 kernel[0]: Failed to get hibernate image filename
27/12/2014 02:30:49,000 kernel[0]: AirPort_Brcm43xx::powerChange: System Sleep
All that is really chinese for me Do you know where i could get anything to be teached about all that
Thanks

My ipod nano 6th generation does not start on pressing the sleep/pause button or pressing both sound low and sleep pause button.it starts while connected to power it is fully charges

i have an ipod nano 6th generation .version 1.2 yesterday i restored it on i tunes using my system window 7. for the last few days it does not start when the sleep/pause button is pressed.or even by pressing the both button sleep/pause and sound minus..It starts while connected to power. and then continues working. I can not put off it and it automatically goes off after some time its performance is ok after starting by connecting to power and then disconnecting the cord.
what would be the reason and what to do?>

Call Apple Care as you are still under warranty.

The answer helped me.But still, what are the settings that I have to change for the behavior of the mouse pointer towards finder? Also the mouse pointer sometimes doesn't accept my command and start clicking itself.what is the problem and how to fix it?

The answer helped me.But still, what are the settings that I have to change for the behavior of the mouse pointer towards finder? Also the mouse pointer sometimes doesn't accept my command and start clicking itself.what is the problem and how to fix it?

If the mouse clicks something on its own then it looks like you have a hardware problem with the trackpad or possibly the battery that is right underneath the trackpad.
I have read that the battery can swell and that would put pressure on the trackpad.

HT3964 My intel based IMac wakes itself immediately when put to sleep and the

I have an intel based i-mac which is about 4 years old. Recently when I have pressed the sleep button it has gone to sleep then immediately turned back on. The volume control also turns itself down to 0 at random times. Some months ago I had a drive appear in finder labeled as 0 and all my applications are on this drive.Anybody have any idea what might be going on?Any help would be greatly appreciated.I was running Snow Leopard when this first happened but upgraded to latest Lion operating system yesterday but problem is still exactly the same.

I have an intel based i-mac which is about 4 years old. Recently when I have pressed the sleep button it has gone to sleep then immediately turned back on. The volume control also turns itself down to 0 at random times. Some months ago I had a drive appear in finder labeled as 0 and all my applications are on this drive.Anybody have any idea what might be going on?Any help would be greatly appreciated.I was running Snow Leopard when this first happened but upgraded to latest Lion operating system yesterday but problem is still exactly the same.

I was playing songs on Itunes while charging then my iphone 3 suddenly turned off. I pressed sleep and wake botton for 10 mins but no logo appeared.What happened?

I was playing songs on Itunes while charging my iphone 3 then suddenly turned off. I pressed sleep and wake botton for 10 mins but no logo appeared.What happened?

Sorry, but if you see the "connect to iTunes" screen on your phone, the only option is to restore, backing up the phone is not possible at this point, even importing the photos might not work anymore.
Import photos and videos from your iPhone, iPad, or iPod touch to your Mac or Windows PC - Apple Support

My Ipod classic stopped suddenly while playing on the dock. On checking it said connect to iTunes to restore and the battery had also exhausted itself. On connecting to iTunes it kept displaying the message Do Not Disconnect. It never worked after that.

My Ipod classic stopped suddenly while playing on the dock. On checking it said connect to iTunes to restore and the battery had also exhausted itself. On connecting to iTunes it kept displaying the message Do Not Disconnect but showed the battery getting charged. Sometime later it said OK TO DISCONNECT. It never worked after that. Please help /guide to restore...

Hello Harrywahi,
Sorry to hear about the trouble you are having with your unresponsive iPod classic. I found a resource that I think would help in a situation like this.
I recommend following the steps in this troubleshooting assistant:
iPod classic Troubleshooting Assistant
http://www.apple.com/support/ipod/five_rs/classic/
Thank you for posting in the Apple Support Communities.
Best,
Sheila M.

Is the trackpad supposed to also wake up the computer from sleep?

Hello,
I am not sure if I am able to before, but right now making a swipe or even a click on my trackpad doesn't wake up the computer from sleep - although typing on the keyboard does. Is this really the case? Or can the trackpad also wake the computer? I've already tried resetting the PRAM but it would still not do the trick. It doesn't bother me much though.
Thanks!

Swiping the trackpad should also wake the computer. Touching a keyboard key that is benign is usually preferred. i.e. shift key.

MacBook Air 2.0 Fan Noise While Idling

I picked up a 1.86, 128 SSD MacBook Air last Sunday and have run into an issue with the fan. At first, the computer was near silent as I've experienced with every Apple laptop I've used. However, while reinstalling OS X to trim the printer drivers and language translations the fans kicked on to full bore. After restoring my system with Time Machine, the fans now make a rattling/vibrating noise from the time I start the machine, or wake from sleep.
Since I didn't notice this at first, I'm guessing that I am experiencing an unfortunate defect with my machine. I was hoping to gauge those of you who have purchased this machine to see if this was an isolated case or if this is normal for the Air.
Also, the noise is not extremely loud, and isn't noticeable with a bit of ambient noise in the room like the TV or music. When it is just me and the computer it is quite distracting. Thanks for the help.

unfortunately that's not a desired solution since I already own a MB Pro. The MBA should be the light OS X laptop to carry around. That's why we cope with the little number of ports and even with a battery that cannot be changed by own means.
Because of the poor graphics and the related processor work producing loud fan sounds by just watching a you tube video / a flash site or doing any other not really power intense stuff I sold my MBA rev1 and bought a rev2 to overcome the graphic card bottleneck and overcome this problem.
And that's where we are right know ... stuck with a better machine in terms of power but not in terms of the display.. left alone by Apple so far in the middle of nowhere with this issue so far. I even can't go to an Apple store and ask them to open any MBA and give me one with a perfect display. We ain't got an Apple store so far in Germany. It's thrid party electronics stores selling those products over here and they actually deny opening the devices before being sold and handing me over a perfect one. Despite of that I have to buy it and afterwards return it for "repair". That's "real customer service" with greated satisfaction. So the only way for me is to gamble and to order directly from Apple Store online and return it if it's not a perfect one. It did this twice but due to the forums experience and due to my personal experience I went for a refund after the second rev2 and now are waiting for a couple of weeks until I will give it a try again. But as long as Apple does not officially react I doubt much will change.
However compared to the number of posters and the sold devices the percentage of complaining users is so low (0.000.x %) Apple probably does not see a reason yet to react. The only thing that keeps me from thinking that it's minority problem is that so many people are reporting that so many MBA rev2 in Apple Store would show the problem to and that even the store genius and stuff admit the devices to have this "faulty" screen. That's my only hope in terms that maybe something in the future will change and that maybe there comes a day (hopefully in the near future) where I can go and buy and get a perfect MBA rev2 and thus an Apple Laptop that I can use what it was designed to be an "almost" perfect lightway OS X device.

Fan starts while sleeping - also wakes itself up sometimes.

Similar Messages

Maybe you are looking for