Five Things You Need to Know Before Upgrading Your 2009 or Later iMac

PR_imac_HDDkitWant to upgrade your 2009 or later iMac’s hard drive or memory? There’s a very good chance that it can be done, depending on the model you own. But before you dive in on your upgrade – and even if you already have begun – there are some very important things you need to know.

The Rocket Yard has outlined a guide on some of the most crucial information you’ll need when it comes to upgrading your iMac.

1) Avoid the Noise
If you have previously researched a guide on how to upgrade the hard drive in your iMac, you might have come across fellow iMac owners commenting on issues involving a blaring, revving or noisy fan.

If you haven’t, we will break it down for you:

The problem: With the introduction of the iMac, Apple’s factory-installed drives contained custom firmware that communicated thermal data to the System Management Controller (SMC). Unfortunately, off-the-shelf hard drives don’t include the custom firmware, and as a result, the SMC is unable to monitor the temperature of the hard drive. This causes the iMac fans to run at full speed and fail Apple diagnostics as a failsafe. Despite various “hacks”, the best solution was to still use Apple’s SMC to ensure proper monitoring of drive and system health.

The solution: Fortunately, OWC was able to come up with a solution with its In-Line Digital Thermal Sensor – the first hardware digital thermal sensor on the market allowing a third-party SATA drive to be installed in an iMac. The sensor eliminates “blaring” fan noise and maintains proper system fan control through the iMac’s System Management Controller. The sensor is designed specifically for the iMac, requires no software hacks, and ensures compatibility with Apple’s built-in diagnostic processes.

So, if you’ve upgraded your iMac’s hard drive and notice a blaring fan, don’t panic. There is a solution. For more on this topic, please read this Rocket Yard article.

2) Maximum Internal Capacity
It might not seem so on the surface, but the all-in-one iMac can fit more storage internally than you might have thought*. In fact, some iMac models have more than one drive bay and can even swap out the optical drive for Data Doubler. With our My Upgrades tool, you can see how much storage each iMac model from 2009-current is compatible with.

Professional Installation

3) Professional Installation Recommended
While the sleek design makes late 2012-current iMac models aesthetically pleasing, it also brings challenges when upgrading internal hardware. If you are planning an upgrade for one of these iMacs, it is highly recommended that you seek professional installation. After all, an iMac is much less aesthetically pleasing with a crack on its screen.

4) Adding More Memory
Lots of OWC RAMEvery iMac – aside from some of the latest 21.5” models – is compatible with a memory upgrade. In fact, the 27-inch Late 2015 iMac with Retina 5K display is compatible with up to 64GB of RAM!

Visit our convenient My Upgrades tool to see how much memory your iMac is compatible with.

5) Newly Vintage, But Sierra Compatible
Apple considers iMacs models from before 2009 “obsolete”. The models from 2009 are considered “vintage” as of March 2016. But what does this mean? Here is Apple’s definition of the terms.

Vintage: Products that have not been manufactured for more than five and less than seven years ago. Apple has discontinued hardware service for vintage products with a few exceptions that can be found here.

Obsolete: Products that were discontinued more than seven years ago. Apple has discontinued all hardware service for obsolete products with no exceptions. Service providers cannot order parts for obsolete products.

Of course, in the world of Macs, obsolete doesn’t have to mean obsolete. And as for the Late 2009 iMac, it might be considered vintage, but it is still compatible with macOS Sierra so you will have access to the latest Mac operating system.

Upgrades Made Easy
Upgrading the hard drive or memory in your iMac is a great way to boost its performance and extend its lifespan. To see all of the upgrade options for your iMac, check out the MacSales.com My Upgrades search tool to find your specific model and compatible upgrade solutions!

* iMac capacities may very depending on the exact Model ID



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