Cannot reinstall OS X on brand new Late 2012 27" iMac

Using either a flash drive or trying to install Mountain Lion from the store I get the same message that informs me that OS X Mountain Lion is not compatible with this computer. I would assume they have some sort of custom build for this machine currently but this doesn't make it easy to quickly deploy a new machine with a clean install. I am currently using a recovery disk that I made using recovery disk assistant which will work OK but it still doesn't answer why we are not allowed to install the supported OS from scratch.

The Late 2012 iMac uses a special OS X build that it's not available from the App Store. However, you can erase the disk and reinstall OS X Mountain Lion without any problem. To do it:
1. Press Command and R keys while your Mac is starting to start into Recovery.
2. Open Disk Utility, select Macintosh HD in the sidebar, go to Erase tab and erase the disk.
3. Close Disk Utility and reinstall OS X.
This issue will be fixed in 10.8.3

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Headphone jack not working on brand new late 2012 27" iMac

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I have pushed...hard. Not the issue.
Tired changing Audio Midi settings to 32-bit floating. Didn't do anything...
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Thx

What you did at last?
This is happening to me and I'm very disappointed and frustrated!
Is the first time I tried to use a headphones and the stupid machine doesn't work!
I already reseted PRAM and SMC also updated OS to 10.8.4
Is a HW problem?
Do I have to go to the store and lost ALL the time I already invested in SW install and file moving from my old laptop?
By the way I can see the light when I unplug the heardphones.
Before some help desk robot asks, YES, I tried 3 pair of phones ALL of them work well in my Vostro 3550, Samsung S3 and in my Nexus 7.
Some light here please!

Does Adobe Premier Pro CS6 and After Effects CS6 support the graphic found in the new late 2012 27" iMac?

Hi there guys! I´m very, very, VERY close to buy a full configuration iMac (the late 2012 27" model) but I have reed in different forums that Adobe Premier Pro CS6 and other applications from Adobe such as After Effects DO NOT support the graphic cards found in the new iMacs....
is this true??????
i really wouldn´t understad the logic behid the decission of picking a graphic card that is not supported by one of the leading video editing sofrware used today.... specially when this computer is suppoused to be an Editing Animal....
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Hi there Daniel, thanks for paying attention to this subject. Today I got an answer from Larry Jordan from his blog (I believe he is one of the "videoguys" from http://videoguys.com and he said that actually adobe does not support those GPU that we will find in the new late 2012 iMacs. However it seems there is a way to make that work out.....
here is his review on his new iMac, at the very botton you will see comments from people and his answers... one of the last coments is mine regarding this subject, this is what I asked and his answer:
mGabo Jan 18, 2013 08:50Hi there Larry, I reed in your other post on your iMac that Adobe didn´t support the Nvidia graphic cards found in this model, I have been asking in forums about this and people say Adobe does supports them……Do you know if Adobe now works fine with these cards?
Larry Jan 18, 2013 11:10When I contacted Adobe about this a couple months ago, just after the release of the new iMacs, I was told that Adobe did not support the graphics card at that time. There is, however, a workaround, which I’m hoping to write up this weekend.Larry
mGabo Jan 18, 2013 12:28 oh! great Larry! please post the link of that article so I can follow that!many thanks
here is the link of this article: http://www.larryjordan.biz/app_bin/wordpress/archives/2084/comment-page-1#commen t-7853
so far I haven´t find anyone who can expalin to me how can I get these Nvidia GPUs working with adobe premier and aplications alike from adobe.

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"Happy New Year" to everyone too

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Hi, marksaner
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I just bought a new late 2013 27" iMac base model from the Apple Store.

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Yes, it's perfect. FWIW, next time you plan to buy a computer ask this question before you purchase it, not after.

Clean install of Mountain Lion on the late 2012 27" iMac

I used migration assistant to move all my stuff from my late 2009 iMac to my new late 2012 iMac. Now I would rather do a clean install and manually move stuff over. How can I do a clean install when there is no reinstall disk that came with the new iMac?

There's a set of reinstallation tools on another partition of your drive, or your system can download and boot from the tools across the Internet.Take a look here:
http://support.apple.com/kb/HT4718
Regards.

I want to give my late 2012 27" iMac to my daughter. How do I remove my personal stuff to give her a clean start??

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Click here and follow the instructions.
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Windows 8 on late 2012 27" iMac?

Hi Guys,
I m planning to install windows 8 on my late 2012 27" iMac, i read online that people have over heating issues with their macs when gaming via bootcamp. Is that true & is there any issue i should be worried about? The new slim late 2012 iMacs are suppose to be better in cooling, anyone with these new slim iMacs can give me feedback? are the new iMacs handling the gaming via bootcamp better then the old ones? is there any safety precaution i should take like placing a external usb fan near the iMac? feedback would be great.
Thanks

Apple is releasing an update to mountain lion that wil solve your bootcamp problems with your 3tb apple imac!! her are the release notes for the beta. It also include windows 8 bootcamp drivers,finally !!
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The 10.8.3 update is recommended for all OS X Mountain Lion users and includes features and fixes that improve the stability, compatibility, and security of your Mac, including the following:
•     The ability to redeem iTunes gift cards in the Mac App Store using your Mac's built-in camera
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Image Persistence On Late 2012 27" iMacs

Hi.
I'm currently on my second late 2012, 27" iMac. I returned the first one I bought because of uneven color from top to bottom of the display, as well as a very readable image of my browser's address bar that seemed to not want to vanish from the display against a plain dark gray background every time I closed the browser. It was a persistent image after using the browser for only five minutes. It was pretty bad, and I exchanged the computer for a replacement.
The replacement model is much better. The colors are pretty even, and if I leave a web page open for a long time, the ghost image on the display generally takes about ten minutes to fade completely away, against the plain dark gray background that I've set as my desktop wallpaper. On my previous model, the image of the address bar never really left. It was, like... permanently burned in.
I've read an awful lot in these forums about image persistence, and also the help articles that Apple published on this site about it. I'm aware that Apple acknowledges this as normal behavior for their displays.
I still have a couple of days left, where I can return this replacement unit for another iMac, or get a refund. My question to the community is this: Is what I have now, as good as it gets? I'd hate to take this one back, and exchange it for another that's only the same, or possibly worse.
Mostly, I'm concerned about residual artifacts from desktop wallpapers, recently closed application windows, etc., interfering with accurate perception of, say, a photo that I open to edit or something. It's a little worrisome. I don't plan to use blank wallpaper forever, or wait ten or twenty minutes after browsing the web before proceeding to work on graphics.

Although I don't own a imac from reading these forums I'd have to say what you now have is as good as it gets. So that leaves 2 options.
Live with it.
Or return it for a refund and move on to some other mac computer or something else.

Dead Fusion drive, brand new Late 2013 iMac. No status update from Apple.

Can someone let me know who I shouyld contact with regards to my below issue? I've spent hours upon hours trying to get my new iMac back from Apple store here in New York city, no success.
Purchased a new Late 2013 model 21" build-to-order iMac 3 months ago >
Hard drive partition corrupt within first month which required in store HD partition correction flash via genius bar >
HD hardware failed next month >
Genius appointment Feb 6 2014, was told new fusion drive was required and would take "2-3 days" >
7 days later I went in-store for status and was told they had no info and would call me with an update >
3 more days I go in store again after no call, still no status update >
Forced to purchase a new cheaper PC so I could keep working from home >
Now its 13-14 days later, I just spent over 2 more hours with Apple Support and still no results, now waiting for store Manager (“Matt”, W 14th St store in NYC) to call me. Its been 5 hours since my call this morning.
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Apple employee, Look up the below repair ID, it'll have my cell phone number attached. Call me anytime with a solution. I've spent hours and hours on calls with Apple support with no results, no return calls from store manager.
Serial: D25LG******* / Repair ID R114745188

brettnyc wrote:
Thats my only option, I shall visit the store this evening and demand to see the manager.
Buying from an Authorized Apple reseller should never mean I get any less support than buying direct from Apple.
You're totally correct on both counts, when you ask to speak to the manager, even though you may be tempted to be angry the best approach to handling the situation is by being; calm, organzied and persistent. Bring all receipts, include names, times, places of who you spoke to and state your case.
I'm sure your issue will be addressed. In addition if you are in the US you can always call Apple's customer relations phone number, I believe the current number is 800-767-2775.
Good luck.
<Edited by Host>

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OK. Log into your migrated account. Open Users & Groups preferences, click on the lock icon and authenticate.
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Cannot reinstall OS X on brand new Late 2012 27" iMac

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