2017 5K iMac RAM Upgrade

[Samurai Shampoo]

Hello.

I want to upgrade the RAM of my 2017 5K iMac with 2x8GB sticks.

It currently has the 2x4GB stock RAM installed.

What brands do you recommend ? Kingston, Crucial etc.?

Can I mix the the RAM sticks ? Meaning I keep the 2x4GB stock sticks and add the new ones in the empty slots?

I've read different opinions on mixing RAM sizes and am not sure what to make of it.

Thanks in advance.

 

[nihil0]

I have Corsair Vengeance 2x8 GB DDR4 CL16 2400 MHz and use it with stock 2x4 GB RAM and it works without problems.

 

[wardie]

I use OWC DDR4 PC19200 2400MHz SODIMM - 16GB Kit (2 x 8GB). Works fine. Yes you can mix sticks just better to keep it in Matched pairs. Just buy a new pair of two identical ones and put them in the spare slots.

 

[Fishrrman]

I recommend:

2017 iMac 5K Retina Memory - Intel Core i5 27" 2017 MNE92LL/A - DMS

2017 iMac 5K Retina - DMS offers DDR4-2400 (PC4-19200) Memory for your iMac Retina Intel Core i5 Quad-Core 27" MNE92LL/A. All RAM is 100% Apple Compatible and backed by a Lifetime Warranty.

www.datamemorysystems.com

 

[Annv]

This one might work: https://www.bhphotovideo.com/c/product/1346253-REG/crucial_ct2k8g4s24am_16gb_kit_8gb_x2.html

I have upgraded my 2017 iMac with 2x16 GB Crucial memory sticks, and it works fine. Now I have 40 GB, including the 2x4 GB pre-installed RAM. So yes, you can mix different pairs.

 

[Abazigal]

I followed this guide and used Corsair ram.

How to upgrade RAM in the (Mid 2017) 5K iMac and save up to ~$900 [Video] - 9to5Mac

I recently acquired the base model Mid 2017 5K iMac, and I have a post in the works that explains...

www.google.com

 

[SaSaSushi]

This 28-page thread has your answers. I recommend Crucial.