OWC Confirms New Low-End 27-inch iMac Can Be Fitted With 64GB RAM

by

Apple announced a refreshed range of iMacs during its keynote at the Worldwide Developers Conference this week, offering three stock configurations of the new 27-inch model with Kaby Lake processors, Thunderbolt 3 ports, and faster graphics, with optional memory and storage upgrades at purchase.

While Apple offers a 64GB RAM upgrade option for its mid-range 3.5GHz and high-end 3.8GHz 27-inch iMacs, it only offers up to 32GB RAM for the least expensive 3.4GHz base model, which has led some observers to question whether the limit is arbitrarily imposed by Apple or hardware-related.

mid 2017 iMac
To answer the question, hardware maker OWC tested the low-end 3.4GHz iMac through its MaxRAM Certification program, which determines the maximum amount of memory that can be installed in a Mac as validated by a series of in-house laboratory tests, and found that it does indeed support up to 64GB of RAM, despite Apple not offering the option at sale.

OWC is offering its own 2017 27-inch iMac memory upgrade modules at MacSales.com, including a 64GB Kit (16GB x 4) for $579.99 that users can install themselves. Apple's 5K 27-inch iMacs come with four user-accessible memory slots that support up to 16GB per slot, so Apple customers are advised to select the lowest RAM configuration when buying an iMac if they want to replace the existing modules with the less expensive OWC memory.

OWC notes that while MaxRAM configurations exceed Apple's officially supported maximums, all OWC-brand memory upgrades are "assured to perform flawlessly" and are covered by a Lifetime Advance Replacement Warranty and Money Back Guarantee.

Related Roundup: iMac
Tag: OWC
Buyer's Guide: iMac (Caution)

Top Rated Comments

UL2RA Avatar
47 months ago
I'm glad they verified this. Apple are some shady shysters.
Score: 14 Votes (Like | Disagree)
devilsnj30 Avatar
47 months ago

nobody wants 64 gb RAM into a 21.5" iMac,so apple knew this

Did you even READ the title? It says 27" iMac....
Score: 14 Votes (Like | Disagree)
Appleaker Avatar
47 months ago
Of course the limit wasn't hardware related, that makes no sense.

It's just to Apple can move you onto the next level and charge you higher prices.
Score: 11 Votes (Like | Disagree)
dannys1 Avatar
47 months ago

through its MaxRAM Certification program ('https://eshop.macsales.com/memory/maxram'), which determines the maximum amount of memory that can be installed in a Mac as validated by a series of in-house laboratory tests

*They put 64gb of ram in and turned it on. It works.

(Apple probably did this because surely they know even the stupidest person was going to buy buying the lowest spec and then sticking 64gb of ram in it. Even if that wasn't stupid enough, sticking 64gb of ram in at Apple prices when you're trying to save money everywhere else and can buy it yourself is even more dumb. It'd be an insult to customers to offer 64gb at this spec and those prices)
Score: 7 Votes (Like | Disagree)
UL2RA Avatar
47 months ago

Can ssd be upgraded too?

It's a huge pain in the butt to do so and you'll void your warranty.
Score: 4 Votes (Like | Disagree)
BornAgainMac Avatar
47 months ago

Apple has always raped users on RAM prices (and SSD upgrade options).
[doublepost=1496914754][/doublepost]I wonder if the iMac Pro will be user upgradable?

The back panel should be removable get easy access to the drives and memory. No need to take the screen out with a toilet plunger. I hope Apple creates this door with the iMac Pro.

A door would also be a easy way to clean the fans from dust that will eventually build up and reduce the cooling of your Mac over time.
Score: 3 Votes (Like | Disagree)

Top Stories

iphone 5s black slate

Images of Unreleased iPhone 5s in Black and Slate Shared Online

Sunday January 17, 2021 9:47 am PST by
Twitter user @DongleBookPro has today shared images of a prototype iPhone 5s in an unreleased Black and Slate color. The iPhone 5s was launched in September 2013. The device featured Touch ID, a 64-bit processor, and a True Tone LED flash for the first time. Other new features included a five-element lens with an f/2.2 aperture, a 15 percent larger camera sensor, Burst Mode, and Slo-Mo...
iP12 charge airpods feature 2

Hidden iPhone 12 Hardware Feature Could Still be Unlocked

Thursday January 14, 2021 2:51 am PST by
All iPhone 12 and iPhone 12 Pro models purportedly have a hidden reverse wireless charging feature, according to an FCC filing. The feature has not yet been activated, but could yet be unlocked for an upcoming Apple accessory. The FCC filing suggests that iPhone 12 models contain the hardware for Wireless Power Transfer (WPT) to accessories: In addition to being able to be charged by a...
Top Stories 43 Feature

Top Stories: MacBook Pro, iMac, Mac Pro, and iPhone Rumors, Best of CES 2021

Saturday January 16, 2021 6:00 am PST by
This week was sure a busy one in the Apple world, with a flurry of announcements out of CES early in the week followed by a rash of Mac- and iPhone-related rumors later in the week. The new rumors this week included details on updated MacBook Pro, iMac, and Mac Pro models, as well as a few other tidbits, so make sure to read on below to get caught up! Kuo: New MacBook Pro Models to...
foldable iPhone concept feature

Apple Testing In-Display Fingerprint Sensor for iPhone 13, Foldable iPhone Also in the Works

Friday January 15, 2021 1:46 pm PST by
Apple has started "early work" on an iPhone that has a foldable display, according to a new report from Bloomberg's Mark Gurman. Though testing of a foldable iPhone has begun, Apple has not committed to releasing a device that has a foldable display. Development has not yet expanded beyond a display and Apple does not have full foldable iPhone prototypes in its labs. Like foldable...
16inchmacbookpromain

Kuo: New MacBook Pro Models to Feature Flat-Edged Design, MagSafe, No Touch Bar and More Ports

Thursday January 14, 2021 9:32 pm PST by
Apple is working on two new MacBook Pro models that will feature significant design changes, well-respected Apple analyst Ming-Chi Kuo said today in a note to investors that was obtained by MacRumors. According to Kuo, Apple is developing two models in 14 and 16-inch size options. The new MacBook Pro machines will feature a flat-edged design, which Kuo describes as "similar to the iPhone 12" ...
macbook pro flexgate

Apple Extends 13-Inch MacBook Pro Backlight Repair Program

Sunday January 17, 2021 10:31 am PST by
Apple this week extended its worldwide 13-inch MacBook Pro Display Backlight Service Program, authorizing coverage for eligible notebooks for up to five years after the original purchase date or up to three years after the start date of the program, whichever is longer. The previous cutoff was four years after the original purchase date. Apple launched the program on May 21, 2019 after...
iphone x camera close

iOS 14.4 Will Introduce Warning on iPhones With Non-Genuine Cameras

Thursday January 14, 2021 8:07 am PST by
In the second beta of iOS 14.4 seeded to developers and public testers this week, MacRumors contributor Steve Moser has discovered code indicating that Apple will be introducing a new warning on iPhones that have had their camera repaired or replaced with aftermarket components rather than genuine Apple components. "Unable to verify this iPhone has a genuine Apple camera," the message will...
Apple TV Ray Light 2 Triad

Apple Extends Free Apple TV+ Trials Until July

Friday January 15, 2021 10:50 am PST by
Apple is once again planning to extend its free Apple TV+ trial subscriptions, this time until July. When Apple TV+ launched in November 2019, Apple offered free Apple TV+ subscriptions to those who purchased a new Apple device in or after September 2019. Those free subscriptions were set to expire in November 2020, but in October 2020, Apple announced that it was extending free trials...
mac pro mini feature

Apple Working on Two New Mac Pro Desktops, One of Which Will Be Reminiscent of Power Mac G4 Cube

Friday January 15, 2021 10:23 am PST by
Apple is developing two versions of the Mac Pro to succeed the Mac Pro that was first released in December 2019, according to a new report from Bloomberg. The first updated Mac Pro is a direct successor to the current Mac Pro and it will use the same design. It may also be equipped with Intel processors rather than Apple silicon chips, and it could be one of the sole machines in the Mac...
macbook pro magsafe

MagSafe is Coming Back to the Mac: A Look Back at Apple's Original Magnetic Charging Technology

Friday January 15, 2021 12:16 pm PST by
Surprise late night rumors last night provided us with our first in-depth look at what we can expect from the new MacBook Pro models that are coming in 2021, and there are some significant changes in the works. Along with additional ports, a new flat-edged design, and the removal of the Touch Bar, Apple's updated MacBook Pro machines will readopt MagSafe. MagSafe in the 2021 MacBook Pro...