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cpnotebook80

macrumors 65816
Original poster
Feb 4, 2007
1,229
551
Toronto
So, i have been using a 2012 imac at work and last year installed catalina. Everything was working fine till 2 weeks ago when it started acting sluggish and beach ball when Adobe was updating its app etc. I did a restart and now it gets stuck on the loading bar screen. I did the disk uility process on startup and tried to reinstall the OSX and it worked but still never booted to the log in screen. I tried it again and now i get the error " this OSX cannot be installed on this mac to that effect". Also, when i restarted it to select the startup disk, the disk does not show up. Ideally, at this point, we are going to donate the machine since we will not be using it but i wanted to get the HD drive out of there even tho i did back up all files few months ago to external. I saw the process on how to remove the drive but wondering before i start, is there a way on can still use the imac as an external monitor? or can the boot be recoverable via external usb perhaps? just looking at options.
thanks
 
So, i have been using a 2012 imac at work and last year installed catalina. Everything was working fine till 2 weeks ago when it started acting sluggish and beach ball when Adobe was updating its app etc. I did a restart and now it gets stuck on the loading bar screen. I did the disk uility process on startup and tried to reinstall the OSX and it worked but still never booted to the log in screen. I tried it again and now i get the error " this OSX cannot be installed on this mac to that effect". Also, when i restarted it to select the startup disk, the disk does not show up. Ideally, at this point, we are going to donate the machine since we will not be using it but i wanted to get the HD drive out of there even tho i did back up all files few months ago to external. I saw the process on how to remove the drive but wondering before i start, is there a way on can still use the imac as an external monitor? or can the boot be recoverable via external usb perhaps? just looking at options.
thanks

Unfortunately, you are likely dealing with a failing (or failed) spinning hard drive — something not unexpected after eleven years of use. Shy of a backup, it may be a challenge to retrieve data from it.

This model iMac can be used in Target Display mode with another Mac, but it can also be upgraded with a fresh SATA 2.5-inch SSD. Not only will this restore your system, but it will also run more quickly than with the old hard drive, even when that drive was still in tip-top shape.

By pulling out the hard drive and replacing it, it may be possible, using an external USB-to-SATA adapter, to run data retrieval from it, vis-à-vis software like DiskWarrior, but that isn’t a given. The only way to know is to get to that point, should you choose to swap out the drive with an SSD.

[In addition, if your model was the fusion drive variant (which pairs the spinning hard drive with SSD storage), you may also be able to drop in an NVMe m.2 SSD blade. If so, this will be where you’ll want to install a fresh build of macOS.]
 
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Unfortunately after 2011 Apple deviced to ditch the magnetic display glass and use adhesive instead which makes opening the device a little harder but not impossible.

You can buy a kit with adhesive strips and a pizza-cutter style opener for a few bucks and try it yourself.
 
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I'd use a 2TB Crucial MX500 SSD

I'd Time Machine Backup your current HDD, install the replacement SSD inside the iMac then restore your files to the SSD from the Time Machine Backup.


I'd use 4x8GB PC3-12800 DDR3L SDRAM SO-DIMMs for a max total 32GB RAM

Be aware that your iMac is officially limited to macOS Catalina that received its final Security Update nearly 1 year ago.

There are unofficial ways to get newer versions of macOS like Ventura and Sonoma but it will add complications to your life.

Considering your 2012 iMac 27" 22nm is a more than a decade old be aware that a 2023 iMac 27" M2 5nm that may sell for $1799 may be released in 2-4 months from now.

Any M1 or M2 Mac will outclass any Mac sold prior to COVID.
 
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Any M1 or M2 Mac will outclass any Mac sold prior to COVID.

Yes, it may out-class older Macs, but will it outlast any Mac sold prior to COVID? :)

(Given their internal design component-“pairing” and the contractual ban on LG, Apple’s display vendor, selling and supplying TrueTone and Retina displays to any third party, in perpetuity), all signs — ::agitates_a_magic_eight_ball:: — point to “no”.)
 
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Yes, it may out-class older Macs, but will it outlast any Mac sold prior to COVID? :)

(Given their internal design component-“pairing” and the contractual ban on LG, Apple’s display vendor, selling and supplying TrueTone and Retina displays to any third party, in perpetuity), all signs — ::agitates_a_magic_eight_ball:: — point to “no”.)

We'll cross the bridge when we get there. @cpnotebook80 did not need to service our iMac until more than a decade later.
 
We'll cross the bridge when we get there. @cpnotebook80 did not need to service our iMac until more than a decade later.

The pre-Retina/4K/5K iMacs of 2012–2014 are, for whatever faults they may have (namely, that adhesive strip requiring applying a new adhesive kit should one plan to do internal upgrades and/or a thorough clean-up), it benefits from an immensely more component-interchangeable design than any of the Silicon-era Macs (and, to lesser extent, all Macs adopting the T2 pre-processor in 2017).

With that decade-old Mac, one can still upgrade/change RAM; upgrade/change either or both of the SATA III drive and the blade SSD with an NVMe m.2 variant; replace the display assembly if, for whatever reason, it fails; and on models (higher than the base/education-line iterations), one can upgrade the CPU with a simple swap (and without a need to deal with a BGA-soldered socket). At no point will the system hobble performance because a non-cryptographically-matched component, even as trivial as an off/on hall effect switch — and, thus, a “non-paired” component — was detected by the OS.

Cross that bridge. Once you do, we’ll be happy to greet you as family over in our neck of the MR forums woods. :)
 
The pre-Retina/4K/5K iMacs of 2012–2014 are, for whatever faults they may have (namely, that adhesive strip requiring applying a new adhesive kit should one plan to do internal upgrades and/or a thorough clean-up), it benefits from an immensely more component-interchangeable design than any of the Silicon-era Macs (and, to lesser extent, all Macs adopting the T2 pre-processor in 2017).

With that decade-old Mac, one can still upgrade/change RAM; upgrade/change either or both of the SATA III drive and the blade SSD with an NVMe m.2 variant; replace the display assembly if, for whatever reason, it fails; and on models (higher than the base/education-line iterations), one can upgrade the CPU with a simple swap (and without a need to deal with a BGA-soldered socket). At no point will the system hobble performance because a non-cryptographically-matched component, even as trivial as an off/on hall effect switch — and, thus, a “non-paired” component — was detected by the OS.

Cross that bridge. Once you do, we’ll be happy to greet you as family over in our neck of the MR forums woods. :)

For all its faults you cannot reach the current dimensions, weight and volume without going SoC. I actually like that design direction. Many buyers do so too.

maxresdefault.jpg


We both have the 1st year model of the last redesigned Intel iMac. So we looked "current" for 9 years.

If a larger iMac came out in 2-4 months time I'd be 1st in line to order one. I do not mind it being that difficult to mend as that's the caveat of the wanted design outcome.

I hope it would last a decade in time for the next redesign that I hope would be thinner than 11.5mm has a M9 0.5nm (A5) chip that likely uses less than 30W but with a raw performance better than a 3nm M3 Extreme 415W.
 
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For all its faults you cannot reach the current dimensions, weight and volume without going SoC. I actually like that design direction. Many buyers do so too.

OK. That’s nice. Not exactly a lot of choice, but yah, SoC. Swell stuff.

The current iMac, facing it, doesn’t really consume less space on my desk than any of its last five predecessors. And unless I need to rearrange my work space, there isn’t a need to think deeply about the iMac’s mass or volume. A laptop, it never has been.

maxresdefault.jpg


We both have the 1st year model of the last redesigned Intel iMac. So we looked "current" for 9 years.

If, in the end, you aim for look “current” (for your own enjoyment, for the flex before guests you host, for home interior decoration, for studio set pieces, or whatever your reason(s)), then by all means, you do you.

If a larger iMac came out in 2-4 months time I'd be 1st in line to order one. I do not mind it being that difficult to mend as that's the caveat of the wanted design outcome.

Except it really isn’t. But again, you want to look “current”, and that’s your thing. Relish in your bliss.


I hope it would last a decade in time for the next redesign that I hope would be thinner than 11.5mm has a M9 0.5nm (A5) chip that likely uses less than 30W but with a raw performance better than a 3nm M3 Extreme 415W.

“Hope” is not a product or service Apple have ever offered, not even with AppleCare.

You’re after prospective marketing talking points (like the kind you just shared), without consideration as to whether an existing iMac can still get done the job before you. And, oh yah, you also hope to look “current”. Genuinely good design manages to look contemporary no matter the age — see Dieter Rams — but again, you do you.

Again, if those are the metrics which do it for you, then awesome. Dive in and demand Apple to shut up and take your money. But don’t expect it to outlast Apple’s earlier products: one would be foolhardy to carry that expectation given the way Apple have locked down their components (constituting a product you’re now, in effect, renting from them).

And also, more topical: try not to discourage a user/original poster on ways to upgrade their own, existing iMac to get more, faster, and current life out of what they already have for some years to come. Let them arrive to their own decision without the soft-sell persuasion. 💁‍♀️
 
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OK. That’s nice. Not exactly a lot of choice, but yah, SoC. Swell stuff.
Progress like below cannot be currently achieved outside of SoC, APU and Heterogeneous System Architecture without resorting to increased power consumption. There are places on Earth that energy costs way more than what your community complains about.

perf-trajectory.png


The current iMac, facing it, doesn’t really consume less space on my desk than any of its last five predecessors. And unless I need to rearrange my work space, there isn’t a need to think deeply about the iMac’s mass or volume. A laptop, it never has been.

People like new unique attractive designs. Why willingly pay for the Apple tax?

That's why certain cars cost more even when it takes the same time between point A to B.

If, in the end, you aim for look “current” (for your own enjoyment, for the flex before guests you host, for home interior decoration, for studio set pieces, or whatever your reason(s)), then by all means, you do you.

That's the key selling point for shallow people like me? ;) When the performance is "good enough" we look for other qualitative and quantitative points to base our purchases on.

The iMac M1 SoC more than halved its power consumption while increase its raw performance and had a 2" screen size imporvement at the same $1299. That's materially... wow!

Except it really isn’t. But again, you want to look “current”, and that’s your thing. Relish in your bliss.

Computers you want repairability for do not sell all that well or cost more to make. Thus worse margins.

“Hope” is not a product or service Apple have ever offered, not even with AppleCare.

All the Apple hardware I have only suffered damage due to clumsy users.

You’re after prospective marketing talking points (like the kind you just shared), without consideration as to whether an existing iMac can still get done the job before you. And, oh yah, you also hope to look “current”. Genuinely good design manages to look contemporary no matter the age — see Dieter Rams — but again, you do you.

I'd want to replace the over decade old iMac for the following reasons

- no more official macOS support for approaching a year
- wear & tear from ~8hr/day approaching 4,000 days of use
- more than halving power consumption
- tax deductible expense

Again, if those are the metrics which do it for you, then awesome. Dive in and demand Apple to shut up and take your money. But don’t expect it to outlast Apple’s earlier products: one would be foolhardy to carry that expectation given the way Apple have locked down their components (constituting a product you’re now, in effect, renting from them).

Macs wouldnt sell all that well if it wasn't for its stellar industrial design. It wins awards for them. It is a material point. Why else do you think more aesthetically pleasing persons are treated well, paid better and fawned upon?

If I could SaaS my hardware I'd do it. That's what I am doing with my iPhone's 24 month telco contract. Once done I get a new $1099 Pro Max.

And also, more topical: try not to discourage a user/original poster on ways to upgrade their own, existing iMac to get more, faster, and current life out of what they already have for some years to come. Let them arrive to their own decision without the soft-sell persuasion. 💁‍♀️

1st half of my post I provide direct answers to their questions with links to video tutorials and preferred parts.

I also point out that that their hardware's actual/projected timeline of end of Security Update support.

Being made aware that the OS has been abandoned is the benevolently responsible thing to do. Not everyone is aware of that and better to disclose that fact and provide official alternatives should be a fostered behavior. Personal and financial data are important. It may be cheaper to buy a new Mac than to deal with identify theft.

In the 90s replacements were every 3 years. Apple observes that Mac users replace every four years. Intel sees their users replacing every 5-6 years.

The 2012 is more than a decade old. It isn't unreasonable to point out that there's a new model that may possibly show up 2-4 months from now.

Money that would have gone to parts for the 2012 could be used for the 2023.

I had a 2007 iMac 20" 65nm. I wanted to crack it open and replace the dead PATA HDD with a CF card with PATA adapter and upgrade the Intel C2D to a Core 2 Extreme.

I was talking to a buddy about this project and he politely pointed out to me that the money I intended to buy those parts with & the selling old iMac 'as is' could go towards a downpayment of a 5nm Mac that I'd likely use 100% of the time for another decade.

Money-wise he made sense considering I'm upgrading a computer as old as the original iPhone.

There are collectors into buying old hardware. So why not make myself and them happy by selling?
 
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Progress like below cannot be currently achieved outside of SoC, APU and Heterogeneous System Architecture without resorting to increased power consumption. There are places on Earth that energy costs way more than what your community complains about.

perf-trajectory.png




People like new unique attractive designs. Why willingly pay for the Apple tax?

That's why certain cars cost more even when it takes the same time between point A to B.



That's the key selling point for shallow people like me? ;) When the performance is "good enough" we look for other qualitative and quantitative points to base our purchases on.

The iMac M1 SoC more than halved its power consumption while increase its raw performance and had a 2" screen size imporvement at the same $1299. That's materially... wow!



Computers you want repairability for do not sell all that well or cost more to make. Thus worse margins.



All the Apple hardware I have only suffered damage due to clumsy users.



I'd want to replace the over decade old iMac for the following reasons

- no more official macOS support for approaching a year
- wear & tear from ~8hr/day approaching 4,000 days of use
- more than halving power consumption
- tax deductible expense



Macs wouldnt sell all that well if it wasn't for its stellar industrial design. It wins awards for them. It is a material point. Why else do you think more aesthetically pleasing persons are treated well, paid better and fawned upon?

If I could SaaS my hardware I'd do it. That's what I am doing with my iPhone's 24 month telco contract. Once done I get a new $1099 Pro Max.



1st half of my post I provide direct answers to their questions with links to video tutorials and preferred parts.

I also point out that that their hardware's actual/projected timeline of end of Security Update support.

Being made aware that the OS has been abandoned is the benevolently responsible thing to do. Not everyone is aware of that and better to disclose that fact and provide official alternatives should be a fostered behavior. Personal and financial data are important. It may be cheaper to buy a new Mac than to deal with identify theft.

In the 90s replacements were every 3 years. Apple observes that Mac users replace every four years. Intel sees their users replacing every 5-6 years.

The 2012 is more than a decade old. It isn't unreasonable to point out that there's a new model that may possibly show up 2-4 months from now.

Money that would have gone to parts for the 2012 could be used for the 2023.

I had a 2007 iMac 20" 65nm. I wanted to crack it open and replace the dead PATA HDD with a CF card with PATA adapter and upgrade the Intel C2D to a Core 2 Extreme.

I was talking to a buddy about this project and he politely pointed out to me that the money I intended to buy those parts with & the selling old iMac 'as is' could go towards a downpayment of a 5nm Mac that I'd likely use 100% of the time for another decade.

Money-wise he made sense considering I'm upgrading a computer as old as the original iPhone.

There are collectors into buying old hardware. So why not make myself and them happy by selling?

tl;dr. :)

@cpnotebook80 — I’d love to hear you update later on once you’ve done some work inside your iMac. Feel free to post any interesting pics to come of it!
 
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I got trolled. 😆

No.

You were just disruptive, played the XKCD “Someone is wrong on the internet!” card, and were, additionally, not terribly helpful toward the original poster (by telling them to ditch what they have, rather than to upgrade it — as if upgrading what one already has is somehow farcical or doesn’t work).

Worse, that “the new stuff uses less electricity, where electricity is more spendy” remark was a counterproductive canard and, over the lifetime of pretty much *any* personal computer Mac from this century, total lifetime power usage costs of using an older computer come nowhere close to the cost of actually using and upgrading what one already has, rather than spending a princely sum on the costs of resource extraction, labour, transport, carbon output, marketing, marchandising, packaging, and in-designed disposability of a current model. (This is where your “things are more expensive elsewhere” bit would have really counted.)

Anyway, one last time: you do you.
 
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