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All replies
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Helpful answers
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Feb 19, 2014 7:56 PM in response to Ty_Rby MichelPM,You can't. It is impossible.
If you iMac is one of the very first or second generation iMacs, the highest possible OS X version these are capable of running is OS X 10.4.11 Tiger. OS X 10.4 Tiger is much too old an OS X version and will never be able to ever get the latest version of iTunes which now needs a much, much newer Intel CPU Mac running OS X 10.6 Snow Leopard or higher.
Sorry, your iMac model is over 10 years old and isn't capable of running today's modern software apps.
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Feb 20, 2014 4:18 PM in response to MichelPMby a brody,Michael,
The first geneartion iMacs can only go up to 10.3.9. Only when they added Firewire could you go up to 10.4.11. Although there was a third party Firewire upgrade card for those Macs which may have enabled 10.4.11 support.
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Feb 20, 2014 7:29 PM in response to Ty_Rby K Shaffer,As 'first generation' Intel-based Macs came on the scene in 2006, they also have limits.
The first series of intel-based Macs have limits on their upgrade OS X & in RAM. Example: first model MacBook 13" 1.83GHz coreduo, upgrades to Snow Leopard 10.6(.8) through retail DVD. That is an early intel-mac. This discussion area is designated as PowerPC, Macs prior to 2006 not of intel-based mac architecture.
For intel-based iMac ASC discussions, see:
https://discussions.apple.com/community/desktop_computers/imac_intel
To be sure, specify the model build year and series iMac you have. Information from About This Mac in the left-side of the Finder under the Apple is a place to start. Info under Mac OS X can be clicked on to read the version, build and serial number of the unit. Also, there's the button 'More Info' that usually goes to System Profiler to read more about hardware and software present in the computer.
The serial number is a searchable item, you can use a 'lookup by serial number' to identify your Mac in fair detail. One such example with secure web site: https://www.powerbookmedic.com/identify-mac-serial.php
Good luck & happy computing!
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Feb 24, 2014 8:49 AM in response to K Shafferby a brody,I would not rely on PowerbookMedic's serial number lookup, if there is a chance Apple still has your warranty records. It could be a key to your identity.
Only use Apple's own secure search site for serial number lookup:
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Feb 24, 2014 11:27 AM in response to a brodyby K Shaffer,However that may be, at least the link I posted did offer a secure https:// option to use their site, so after I found it worked and a certificate appeared to function on its behalf, I post that link. If a lock appears in your browser, you can see what certificate or level of secure function may be provided. The general URL to that site does not load a 'secure page' otherwise.
If the computer is an older PowerPC unit, or a used previously-owned model well shed of any recent Apple interests, at least the original poster is not asked to put their serial number on an open forum; even though a web site could be set up to harvest such information and redirect it elsewhere.
You make a valid point, and just the model number can be used in such a site (that one, in fact) though that only gives the information across the entire range of product where the model or number was in use. Several years of changes are packed into a general description, without the serial number. But even if you can get a less vague 'model 5.1 mid-200x' identifier, then sites such as everymac.com or databases such as Mactracker's are easier to use.
Good luck & happy computing!