When my Imac 27 ( 2011 version ) is shutdown or sleeping there a buzzing "electrical" sound ( like an high tension cable ) behind the screen.Â
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iMac (27-inch Mid 2011), Mac OS X (10.7.4)
Whenever i put mac macbook pro to sleep, it only stays sleeping for about half an hour and then wakes itself up. It does it whether i close the screen or manually put it to sleep. When its awake, the system is running but the screen is dark unless i click a button.
View 5 Replies View RelatedI purchased a 21" iMac a couple of months ago. Today it started making constant buzzing/humming noise. It's not really loud, but it is noticeable and annoying after a while. It stops if I put the computer in sleep mode or turn it off, but it starts back up the moment I turn it back on again. It sounds like it is coming from the bottom of the screen near the speakers. I have tried adjusting the brightness and volume, but to no avail. I also tried lifting the computer off the desk to see if it was just vibration, but that did not make a difference either.
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iMac, Mac OS X (10.7.3)
I have noticed this buzzing noise (like crackling electricity of sorts) coming from the left side of the machine out of the cooling vent. I bought my IMac in 2010 and have not had any problems with it until now. I noticed the "noise" a couple of months back and it would show up here and there every once in a while, it was not annoying, so I let it be. Until this last time, when the noise was loud and annoying, I could not just forget about it. I am under warranty and called into Apple to see what can be done for this problem.
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iMac (27-inch Mid 2010), Mac OS X (10.7.4)
My 20.5 inch 2.7GHz iMac is about a year old and has recently started making a low humming/buzzing noise from the top right corner, near the SuperDrive bay. The top of hte iMac feels quite warm when it makes the noise and usually stops if I hold my hand on top of the computer. Is this something I should be contacting AppleCare about?
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iMac, Mac OS X (10.6.8), 2.7GHz, Core i5, 4GB RAM
The IMac is about 2 years old, we have Lion installed, use a trackpad. Our mouse is sitting next to the trackpad, and until today, was not turned off. Would that have anything to do with it?
Info:iMac, Mac OS X (10.7.3)
How can I set a password on my imac following sleep so no one can access except me?
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iMac, Mac OS X (10.7)
I try to put my iMac (Lion) in the sleeping mode. The screen becomes black but the hard disk doesn't stop. I don't see any live process in the activity monitor. This problem was not there before and I have no idea to correct it.
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iMac, Mac OS X (10.7.3)
iMac will not shut down when I use the "Shut Down" feature. My cursor just keeps spinning in the centre of the screen. I realize I can just power off with the button on the back of the screen but I don't think that is the best way to go about it.
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iMac, Mac OS X (10.7.3)
I am wondering if anyone may know the problem of why my 24" imac (early 2008) won't shutdown properly, sometimes it just goes to the blue screen with the thinking wheel going around. No obnoxious beachball though.
Info:iMac (24-inch Early 2008), Mac OS X (10.6.8), 4GB RAM
My iMac 27 late 2010 does not shut down when shut down in the normal way. I have to shut down with the push button. I have tried disconnecting all the usb connected hardware still no use. Can any body help.I have OS Lion 10.7.3?
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iMac, Mac OS X (10.7.3)
Tried to start our iMac get the normal chime, then the gray screen with the gray apple......but then I get a narrow progress bar on the bottom of the screen. The progress bar in the screen gets about 1/8 filled and then it disappears and then I get a second bar ant it also gets about 1/8 filled and then the computer shuts off. I did try to do a reset of the pram ( only thing I could think of) ...did not work. Fortunately, I have Time Machine..
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17, Mac OS X (10.6.8), (2) 3G iPhone 4. (2)iPads 4.33
I shutdown my IMac last night and then went to restart it this morning and it would not turn on.Â
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iMac, iOS 5.1.1
My system has randomly shut down twice now in the last two days. Dual G5 2.3. I checked the console log, which I know very little about, and it said this:
localhost kernel[0]: ApplePMU::PMU forced shutdown, cause = -122
Two questions-
what's the -122 code mean?
Do you think resetting the PMU would be the solution to this?
My imac intel has recently started to play up. Everytime I try to shutdown it gets stuck at teh blue screen with a spinning circle.
Has anyone else seen this.
latest apps that i have, but not running, is parallels. I also used Boot camp to partion my hard disk but did not install the os. so have a partion with nothing on it.
My iMac doesn't turn off in the normal way any more. The system shuts down and the screen becomes black, but the fan keeps on running. And it deosn't stop! The only way to completely shut down everything is to hold the powerbutton.
I already have reinstalled Lion, but the problem is still prensent. I've got this iMac for around 6 months now, but this problem occured around 2 weeks ago. Before everything has been all right.
Info:iMac, Mac OS X (10.7.3)
How do you shutdown mal, contacts & calendars if theres no red X to shut down?
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iMac (21.5-inch Mid 2011)
Can someone help me? My imac is unable to shutdown or restart. I've tried to do a permissions check and it didn't help idk what to do. And it takes forever to start up occasionally it won't start up help me! My imac has a 2.8 ghz intel core 2 duo with 4 gb of memory and 500 gb hard drive. I'm doing this from my iPhone because safari is not working.
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iMac, Mac OS X (10.7.3)
Cannot Restart or Shutdown my iMac from the Apple menu.
Info:iMac, Mac OS X (10.6.8)
My IMac does not shutdown through the normal operating procedures. I have to press the reset/shutdown button in the back. Plus it constantly freezes up. I have over 100GB of free space. Total capacity is approx 500GB
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iMac, Mac OS X (10.5.8)
When I had just installed the Intel X25M (80 gb G2) shutdowns took merely 2 seconds. Now, after the dock minimizes adn hte icons disappear, the computer just hangs for 10-15 seconds, turns into a blue screen and hangs for maybe 10 seconds more before actually shutting down (black screen, everything off).
Does anyone know what is wrong? The drive is only 2-3 months old, and I still have 40 Gb free.
I was thinking it is some program that is running in the background that is having trouble quitting.
How does this work? If I have more than one user logged in, the power goes out and the computer decides (based on the settings I have selected for UPS) to shut down, will it be able to complete the shutdown? When I do it manually I have to log out the other users.
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iMac, Mac OS X (10.6.7), 21" 2.5GHz i5
Imac won't shut down, blue screen with spinning wheel is on and computer never shuts until I hold the power button down and shut it manually..
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iMac, Mac OS X (10.6.8)
can't shutdown my mac after opening iTunes or Outlock 2011, on verbose mode i get the error, so if i dont open one of the applications i can shutdown the mac Â
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iMac, Mac OS X (10.7.3)
I have a 2011 iMac which i've loved using. I bought a Seagate goflex external harddrive so I could start using time machine. I've noticed that whenver I power my iMac down it will sit on the grey screen just before shutting off for a long time. In fact, it will not actually shut down until i unplug my external hard drive. As soon as I unplug my harddrive the mac starts thinking again and shuts down within seconds. Why it would do this. I now hard plug my harddrive in because of this, which is kinda of dumb since I bought it to work as a time machine.
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iMac (27-inch Mid 2011), Mac OS X (10.7.4)
Is there a way to manually lock an iMac screen? Like you can on Windows' PC's, I'm wanting to type or click a function to lock my screen and go to the log-in screen instead of waiting for the alloted time to run out.Â
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iMac, Mac OS X (10.7.4)
Usually when I shut down the system using the software "shut down" command, the system shuts down. Lately, I have had to use the shut down button which resuts in an improper shut down when I restart the computer. So, there is a software glitch. Is there anyway to correct this?
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iMac (24-inch), iOS 7.1.1
My early Intel iMac (2006) won't shut down - gray spinning wheel and blue screen for more than 2 hours now. Can I safely turn it off with the power button? (I'm a little paranoid after a bad experience doing that with my MacBook Pro).what I should I do then?
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iMac, Mac OS X (10.4.7)
My iMac is the latest model, however when I try to shut it down I get a grey screen with the apple loading spiral and it doesn't shutdown. I have version 10.7.4 OSX Lion, all updates have been downloaded. I have resorted to leaving it on. I do not want to hard shutdown because this could damage the system, my old iMac broke after the hard drive was damaged with the same style of issue.
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iMac, Mac OS X (10.7.4)
I have a mid 2007 iMac that seems to, for no apparent reason at all, just randomly go to a blank screen, locking up my Mac requiring a hard shutdown. This happens sometimes right after I start it up or after I'm on for hours at a time. Or not at all, I simply don't get it. I reinstalled Lion (after I redownloaded it to be safe) and it didn't seem to work.
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iMac, Mac OS X (10.7.4), Mid 2007,500GB Hard Drive, 3GB Ram
