What upgrades will fit my system?

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iMac Intel 27" EMC 2429

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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Nick @nick96376

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Posted: Mar 8, 2014

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What upgrades will fit my system?

I have the original 256GB SSD / 1TB platter drive combo.

I'd like to upgrade both or at least the SSD if possible. What is the most I can do?

My machine: iMac Intel 27" 3.4 GHz (Core i7), EMC 2429.

I've read some accounts of non-stock drives causing excess fan noise, which is a concern.

Would I need your dual drive kit, since I already have dual drives?

Thanks! Nick.

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Dan @danj Rep: 478.8k Self employed contract worker 35 329 970 · Answer 1 · 2014-03-08T16:45:07-07:00

Both the HD & SSD use standard SATA interfaces, so your not limited in your choices.

But before you do anything make sure you have updated the systems firmware so you can get SATA III (6.0 Gb/s) services. Without it you only have SATA II (3.0 Gb/s). Follow this Apple TN: EFI & SMC firmware updates for Intel-based Macs.

The issue with HD's thermal sensor used in some of the models (which is the reason people have had issues with the fan). This model doesn't use the built-in sensor services of the drive.

The bottom line here is you shouldn't have any problems with the HD swap out. Yes, the fan will kick in when you are running the HD hard.

As to needing a dual drive kit. As your system has all of the needed pieces in place for the SSD (the Apple supplied SSD is a 2.5" unit) you won't need it. But, the current SSD's location is underneath the logic board (wedged against the mid-plane air dam). So you'll need to completely remove the logic board to get to it. If you decide you want to move it over to the optical drive (where IFIXIT and others place it) so its more serviceable. You will then need to get the kit to get the longer cables.