The iMac is Apple's line of all-in-one desktop computers.

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What is the model of my iMac?

How do ifigure out the exact model of my iMac?

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The answer is fairly easy, and the question is useful, because it should be read before any other question.

Go to, open up the "ultimate lookup" page and insert the last three (if asked, four) numbers and letters of your Mac Serial Number.

You can find the Serial Number in the System Profiler, that you can access by clicking on the small Apple symbol on the top of your display, on the left.

If your computer doesn't boot, or if you can't find the serial Number in the System Profiler (I helped a friend fix a Powerbook G4 with OS X 10.1.x, and it didn't have the serial number in the Profiler, but it did show up when he installed OS X 10.4.11), usually the Serial Number is printed somewhere on the machine: laptop may have it under the battery, if it's a removable, or under the bottom case, iPod, iPhones and iPad have the Serial Number printed on the case for sure, desktop Mac may have it printed somewhere behind, where it's not a sore for the eyes.

Failing all of that, the original package _always_ includes the serial number printed somewhere.

Furthermore, if you registered your Mac when you got it with, for AppleCare purposes, while the registration process asks you only your AppleID and the Serial Number, your AppleID page will always show your devices listed for model.

Just if you feel a bit lazy, Mactracker, available as a stand-alone freeware or free to download in the Snow Leopard/Lion App Store, has a function that can detect your model, and usually, at least with G4 and Intel ones, it works.

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thankyou so much


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Just wanted to add to Stefanos answer, for the serial number and machine specs: on an iMac G5 and Intel, look on the bottom of the stand. On PowerBooks look in the battery compartment sidewalls, for MacBooks remove the battery and look inside, it's can be seen in the bottom (actually located on the bottom of the upper case). The Unibodies have it printed on top of the RAM slots. For MacPros remove the door and look on the bottom of the frame opening. For G4 iMacs, open the optical bay door, it's under the flap. For G4 towers, look for a plate on the back of the machine. G3 iMacs had it in the port compartment.

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Having changed my upper case, I guess I'll have to hold dearly to the original box and/or the last support invoice/receipt from the AASP.

That's another source for tackling a lost S/N, on a machine that was serviced in the past.


The info is on a sticker. Move the stickers to the new top cases. I usually do this and date it with a sharpie.


Well, I guess that, since the upper case was replaced two times, the first while in warranty, the sticker got misplaced before the second change, the one I enacted. No big deal, no fuss about that.

We'd get out of the discussion theme: let's just say that on Macbook A1181 models, when they receive an upper case replacement, the sticker may get misplaced, so the user should use System Profiler or keep the S/N written somewhere safe when this happens.


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