IMac 27" Intel core i7 doesn´t turn off.

I have a iMac 27" and when i want to turn it off, it doesn´t work. you can see a white background with a little circle. What can i do that my iMac turns off?

Hi, first off - your profile shows an older version OS - is this correct?
Hopefully you have the latest Updates etc,, Initially I would try to Boot from the original apple disks.
The HD might be the culprit. so hopefully you have TM or another bootable back-up!
As your Mac is relatively new I would call AppleHelp or visit your local GeniusBar or AASA..
ps. I spent many happy hours in Liverpool (the Beatles era) - Great City, Great People....L

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IMac Intel Core 2 Duo Screen Turning Off

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A good chance, but...
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
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Here is the information about downloading Lion when it is released in July.
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Your signature says: 867 MHz PowerPC G4
Your thread title says iMac G5 Intel Core Duo 2133. There is no such thing. It is either an Intel imac or a PPC G5 iMac.
As I have an Intel based machine is this the PowerPC model they talk about?
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Please clarify what Mac you actually have, and what operating system you use (you quote Panther).

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Some features require an Apple ID; terms apply.
Some features require a compatible Internet service provider; fees may apply.
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MacBook (Late 2008 Aluminum, or Early 2009 or newer)
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Hello K
Thank you for that. It does make perfect sense. And I was quite surprised when the guy at Apple Care said that store bought OS discs are the equal equivalent of the original grey discs. However, I was also kinda relieved, because I have the Snow Leopard discs and I don't have the original grey discs, so at least I have a chance of fixing the problem.
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Hi, please, anybody knows how many coolers has an iMac 27 Intel core i5? The widget iStatpro shows 3. I changed my HD (the previous one of 1TB crashed) and after that the HDD cooler is constantly working at 4.600 rpm. Anybody is facing this problem?

Hi, please, anybody knows how many coolers has an iMac 27 Intel core i5? The widget iStatpro shows 3. I changed my HD (the previous one of 1TB crashed) and after that, the HDD cooler is constantly working at 4.600 rpm. Anybody is facing this problem?

Did you replace the HD yourself? If so what HD did you use?
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If the sensor is not in circuit, the fans will run full tilt all the time.
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Can I install Mountain Lion 64-bit over top of 32-bit version installed by mistake. Machine is 24-inch mid 2007 iMac with Intel Core 2 Duo (64-bit?)

Welcome to Apple Support Communities
Mountain Lion is a full 64-bit operating system. Why do you think Mountain Lion is 32-bit in your computer?
To check that you are definitely using a 64-bit operating system, open Terminal (in /Applications/Utilities) and type:
uname -a
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Im running an Apple iMac G5 Intel Core 2 Duo with OS Tiger 10.4.7.
I am planning to upgrade to Leopard. However...I thought it would be as easy as just purchasing installation discs for Leopard. Now I find out that the install might not work on an Intel machine? Is this correct? Not as easy as just buying a 'OS Leopard box set' on eBay for example - do I have to actually make sure its OS Leopard Intel? Iv looked on eBay and THEY DONT SELL 'OS LEOPARD INTEL' DISCS!!
Secondly - my girlfriend wants to use my old 'Install 10.4.7 discs' on her G3, Im guessing because they came with my Intel machine -that they wont work on a different machine? You can imagine Im quite wary of running a OS upgrade on another machine if its going to pear shaped.
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My macbook doesn't turn off and filesystem verify or repair failed

My macbook doesn't turn off unless I take out the battery, which I did not do at this time. Used disk utility and it came up with Error: filesystem verify or repair failed. Missing thread record id=2099508. Incorrect number of thread records. Invalid file count. Should be 1042169 instead of 1042170. The volume needs to be repaired - 7%. Okay, shall I take out the battery, then put it back in, and on startup press D and do a hardware test? Or what? Thank you. Ellen
These are the MacBook's specs:
Processor Name:
Intel Core 2 Duo
   Processor Speed:
2.4 GHz
   Number Of Processors:
1
   Total Number Of Cores:
2
   L2 Cache:
3 MB
   Memory:
2 GB
   Bus Speed:
800 MHz

Sorry I didn't reply sooner. I had work to do on my computer, and I didn't want to rsk messing around with it until I finished. So, I removed the battery in order to turn off the computer, then restarted it , holding down the D key at the same time. The computer started up, but no screen came up to continue. So I again removed the battery, though I did first try shutting it down the correct way, and aain restarted with holding the D key down. Nothing happed no hardware test. So, everything is backed up now, and is my next step to insert my Mac OS X install disc 1, or do I earase everything and install it,? And am I supposed to install the disc while holding down the C key?
Thank you.
Ellen

IMac 27" Intel core i7 doesn´t turn off.

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