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Model A1312 / Mid 2011 / 2.7 & 3.1 GHz Core i5 or 3.4 GHz Core i7 Processor, ID iMac12,2

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If I upgrade to SSD, that allow me to go to macOS Mojave or higher?

I’m planning to upgrade the HDD to SSD. Which SSD is recommended and what tools do I need?

Will the new SSD allow me to upgrade to new OS since my current OS is High Siera? I like to upgrade to macOS Mojave and the up coming Monterey?

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Metter Chin upgrading your SSD won’t alter the limits of the systems CPU and firmware. While I do think you’ll gain performance adding a SSD it won’t technically allow you to upgrade to a higher macOS your system is limited too.

With that said there is an OS hack which will over-ride Apples limiter. But there won’t be much benefit as the features you are likely looking for won’t work in your system as the hardware that’s needed is missing. DOSDude Jumping up one OS release higher can make sense if your applications require it. Jumping two or more from that your system was limited to becomes more iffy!

Here’s the guides you’ll need to follow:

Swapping out your HDD for a SSD while easier offers less benefit than adding the SSD which is a bit more work. In either case any 2.5” SSD will work.

I think you’ll find this kit will get you everything you’ll need iMac Intel 21.5" and 27" (Mid 2011) SSD Upgrade Bundle to replace your HDD.

If you go with the dual drive setup then you’ll need iMac Intel 27" (Mid 2011) Dual Hard Drive Kit and the SSD 500 GB SSD or 1 TB SSD

1 TB SSD Image

Product

1 TB SSD

$149.99

500 GB SSD Image

Product

500 GB SSD

$89.99

iMac Intel 27" (Mid 2011) Dual Hard Drive Kit Image

Product

iMac Intel 27" (Mid 2011) Dual Hard Drive Kit

$27.99

iMac Intel 21.5" and 27" (Mid 2011) SSD Upgrade Bundle Image

Product

iMac Intel 21.5" and 27" (Mid 2011) SSD Upgrade Bundle

$129.99

iMac Intel 27" EMC 2429 Hard Drive Image

Guide

iMac Intel 27" EMC 2429 Hard Drive Replacement

Difficulty:

Moderate

20 - 30 minutes

iMac Intel 27" EMC 2429 Dual Drive Kit Image

Guide

Installing iMac Intel 27" EMC 2429 Dual Drive Kit (HDD or SSD)

Difficulty:

Difficult

1 - 3 hours

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Samsung 2TB 870 QVO SSD ans you get cloning software free of charge from Samsung. As for tools a mixed screwdriver set.

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Comments:

Thank you Peter. Will this allow the Mac OS upgrade with this computer?

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Peter - I love the Samsung drives but there's a bit more that swapping out a drive. This series requires a thermal sensor be added if you replace the HDD. In addition Metter Chin's question was more on if going with a SSD would allow him to upgrade to a higher macOS version. Swapping out the drive alone won't change things from that perspective.

Apples OS installers don't allow one to run OSs which are not suitable for the system as the OS's tend to include enhancements for newer systems hardware which clearly is not present in an older system. While there is a hack one can install onto ones system to allow you to go with a higher OS version than what Apple intended, it won't allow you to gain that much benefit and in some cases can make your system unstable. I don't recommend doing it on your main system. It can be useful to test things out on a second backup system though.

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Metter Chin will be eternally grateful.
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