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Fishrrman

macrumors Penryn
Feb 20, 2009
29,233
13,303
If you aren't comfortable prying the iMac open (there is definitely a risk of breaking things inside during a drive upgrade), you could do this:

Get an external USB3.1 gen2 SSD, such as:
- Samsung t7 shield
- Crucial X-9
- or buy an nvme blade SSD, and put it into the USB3.1 gen2 enclosure of your choice.

Then, migrate your internal setup (you could use CarbonCopyCloner or SuperDuper) to the external SSD...

Then, set it to be the new boot drive using the startup disk settings pane, and then...
... boot and run that way.

USB3.1 gen2 on an external SSD will give you read speeds around 850-900MBps or even a little better at times. Quite snappy.

Change the display?
If both the display AND the drive are giving you problems, it's probably time to be looking for a replacement.
 
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gilby101

macrumors 68030
Mar 17, 2010
2,946
1,630
Tasmania
Get an external USB3.1 gen2 SSD, such as:
- Samsung t7 shield
- Crucial X-9
- or buy an nvme blade SSD, and put it into the USB3.1 gen2 enclosure of your choice.
Or, for a 2017 iMac, a faster SSD in a Thunderbolt 3 enclosure. More money, more performance.
 

macguru9999

macrumors 6502a
Aug 9, 2006
817
387
Your face is familiar, have we met at aspen ??

seriously, i do this upgrade all the time. You cut off the screen and replace the 3.5in spinner with a 1,2 or 4tb crucial sata ssd in a cradle.Then you reboot off an external and install your OS on the crucial ssd and import your files from the backup. Then you erase the mobo ssd format as apfs and delete the little volume so you can ignore it from now on ..... its the best way i have done dozens of them. just be careful with the tool to remove the screen or get someone else to do it whos done one before !
 

lasloduncan

macrumors 6502a
Original poster
Mar 2, 2015
547
32
Thanks all, no it wasn't Aspen--probably France =next time speak up and introduce your self I am good with name....and faces
 
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specialstyle

macrumors member
Aug 21, 2024
75
20
If you aren't comfortable prying the iMac open (there is definitely a risk of breaking things inside during a drive upgrade), you could do this:

Get an external USB3.1 gen2 SSD, such as:
- Samsung t7 shield
- Crucial X-9
- or buy an nvme blade SSD, and put it into the USB3.1 gen2 enclosure of your choice.

Then, migrate your internal setup (you could use CarbonCopyCloner or SuperDuper) to the external SSD...

Then, set it to be the new boot drive using the startup disk settings pane, and then...
... boot and run that way.

USB3.1 gen2 on an external SSD will give you read speeds around 850-900MBps or even a little better at times. Quite snappy.

Change the display?
If both the display AND the drive are giving you problems, it's probably time to be looking for a replacement.
I agree with this advice. External booting is a good solution if you don't want to open it up.

I have a now-retired 2015 of the same size with a slight crack in the corner (barely noticeable on the visual part of the screen) that I've considered replacing since I got it (got it unused) -- but it's too expensive to bother. It's like $350-500 for the screen....and to fix a 2015-2017.... it didn't make sense for me.

I went on eBay and scooped up a 2019 for less than $1k with a core i9... and that has been a worthy upgrade for sure. Personally I would look into that route because iMacs are CHEAP on eBay if you don't mind a used machine. You just have to be careful with what you're buying because a lot of sellers put newer years in the titles than the machines actually are. Lots of 2012 models with 2019 software...for example.

Hope that helps!
 

macguru9999

macrumors 6502a
Aug 9, 2006
817
387
agree if you are not used to opening them up there is a risk of cracking the screen, and its not worth getting a new screen so that would be that. Since its a fast usbc/thunderbolt connection on the back, and external nvme blade in a housing will work well, provided the internal spinner is not actually failing and can just be ignored..... gosh, even a sata ssd in a usbc housing works ok, but a blade would of course be better.
 

HobeSoundDarryl

macrumors G5
Most flawless method: locate an Apple shop that is NOT Apple Inc... one of the enthusiast shops that loves Apple products but is not actually Apple Inc. Contact them to see if they can do the job (usually they can). Bring the drive you want installed to them so that you only need the labor (to minimize cost of service vs. paying some extra for them to buy the same drive and mark it up). They then do the installation, hand you back the removed drive and new SSD-based Mac.

Reload your stuff on the SSD Mac and enjoy a much faster Mac.

Caution: it's OLD in Apple's eyes, already in the vintaged window if not already vintaged and thus it will likely start having issues with key apps in whatever level of macOS it can run no longer working right. For example, Safari will stop working with some websites, though you can replace that with Chrome or similar.

The point: before you sink much into it, be sure you want to spend the money only to have the OS then leave newer hardware behind. You may want to simply redirect all potential upgrade money towards a new one... and/or go PC where the same money will easily buy more computer because all of the competition makes margins much tighter. Yes, people like Apple and thus detest Windows... but if money is an issue in trying to salvage a nearly 10-year-old Mac, the very same money can buy more of a new PC to replace it. Bonus: Microsoft tends to support their older PCs much longer than Apple does... so you might get more than 10 years out of a good PC selection.
 

Raincoaster

macrumors newbie
Aug 29, 2024
11
3
I went through this about two weeks ago and followed Fishrrman's advice. Works great, totally unobtrusive. I thought I'd be annoyed by an external gizmo, but it self powers and makes no noise. I wouldn't bother cracking the thing open at all.
 

siddhartha

macrumors regular
Aug 8, 2008
161
44
Northern Virgina
I have done this upgrade myself, to multiple iMacs, including those with the "glued" screens.

Actually not that bad, just take your time, and don't rush it.

Fusion drive is a horrible legacy thing, I had so many issues with mine, with it being "de-fusioned" multiple times while simply trying to use bootcamp, or upgrade my iMac.
 
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