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How to upgrade the RAM on the 27-Inch iMac (2020)

Upgrade the RAM on your 27-Inch iMac (2020)

Last updated

The 2020 27-inch iMac is a worthwhile upgrade to the previous version, Apple still has exorbitant prices on RAM. Fortunately, users are still able to upgrade the RAM on their own — and here's how to do it.

Apple's prices on RAM are typically elevated from third-party offerings, but what makes the iMac unique is that it is one of few machines in Apple's lineup that has user-replaceable modules. With minimal effort, users can upgrade from the 8GB that comes standard up to 128GB without breaking the bank.

There are many choices for third-party RAM sticks, but we typically turn to OWC. They offer great quality, good value, and solid after-sale support.

Apple charges users a cool thousand dollars to upgrade from 8GB to 64GB and an even more mind-blowing $2,600 for the 128GB. OWC charges around $270 for 64GB of RAM and $600 for the 128GB set — a full $2000 less for 128GB versus Apple. That's enough for another iMac.

What we're saying is — don't buy your RAM from Apple.

How to upgrade the RAM on the 27-Inch iMac

To upgrade the RAM on the 27-Inch iMac (2020) you will need a large open surface with a soft covering, a spudger or pen, and your new RAM modules.

  • Disconnect all cables, including peripherals and power, from your 27-Inch iMac
  • Carefully place the iMac face down on the protected surface
    Place your iMac face down on a protected surface Place your iMac face down on a protected surface
  • Using the tip of a pen or a spudger, depress the button that is hidden above the power input
    Open the RAM cover by pressing the button Open the RAM cover by pressing the button
  • Press the button until the RAM cover is free, and remove the cover
  • Access the RAM by push the two light grey buttons on either side away from the RAM and slide the housing forward
  • Carefully slide the existing RAM out of its housing. This may take a good amount of force
    Remove the old RAM modules Remove the old RAM modules
  • Install the new RAM by sliding it into place and pressing firmly. If installing four modules, the position doesn't matter, but if you install just two, they need to be either in positions 1 and 3 or 2 and 4 for proper two-channel support
  • Slide the RAM housing forward until it is flat and no longer protruding past the surface of the iMac
  • Place the RAM cover in place and apply even pressure on each side until it goes flush

Now the new RAM is installed. Reconnect the power cables, boot up the machine, and confirm the new storage by going to the Apple icon in the top-left corner and selecting About this Mac.

Where to buy RAM for your new iMac

The 27-Inch iMac (2020) The 27-Inch iMac (2020)

If you're looking to upgrade the RAM in your new iMac, OWC has a variety of kits for Apple's 2020 iMac models.

And if you're looking for the best deal on the systems themselves, AppleInsider readers can secure exclusive discounts on new configurations in the Mac Price Guide.



10 Comments

davebarnes 19 Years · 376 comments

Ordered 64GB from MacSales yesterday.
iMac arrives at month end.

MplsP 8 Years · 4047 comments

So I just looked -
On Apple's web site, it costs $200 to upgrade 8GB (to 16GB total), $600 for 32GB total, $1000 to upgrade to 64GB, and $2600 for 128GB total RAM.

On OWC's web site you can buy compatible RAM for $35/8GB, and 128GB costs $600. Crucial has similar prices. I'm trying to figure out what possible justification there is for a 400% markup (over another suppliers retail price, no less.)

caladanian 10 Years · 380 comments

Don't buy your RAM from Apple. It’s that easy. And that ridiculous. I really don’t understand why Apple does this, irritating even fanbois like me. :smile: 

CheeseFreeze 7 Years · 1339 comments

What I don’t understand is this behavior from Apple: overcharge for memory and storage like crazy. It’s not that their business depends on it - their business model is more focused on services and App Store. 

Why in 2020 aren’t they prioritizing their brand image and providing customer service over these kinds of practices?
And if they are, they really should offer a way to replace both storage and memory easily throughout their entire desktop product offerings. 

wonkothesane 12 Years · 1738 comments

These prices from Apple sound to me like they’re telling the customer “you know, we really don’t want to bother with different RAM configs and doing all this upgrade thingy for you. So if you really really want we will do it for that ludicrous price. But if you care a little for us, please please don’t buy RAM off us. Just go with the base config and have it done somewhere else.  Please.”