Has anyone put 128GB RAM in a 2019 27" non-Pro iMac?

[Turnpike]

I have a 2019 i5 27" iMac, the silver one (I think the iMac Pro is only 2017) and it seems I can put 128GB of RAM into it.

The official max is 64GB, at least thats all Apple offered but now they make the RAM (2x64) sticks and OWC even offers it as the Max for my machine.

Has anyone done this? Or is there not much improvement over the 64GB? Or is it better/safer to go with less? Thanks in advance!

 

[GMShadow]

Apple's listed max is often half what eventually ends up being the real maximum, just due to memory availability timing.

If you need 128GB it should be fine. Pretty expensive upgrade to do just for kicks though.

iMacs are 4 slots, so you'd be doing 4x32GB, not 2x64GB.

 

[Turnpike]

Awesome, and you're right- 4 slots, I forgot.

I technically don't need the 128GB, but I spend 12+ hours a day on this machine for work and research, and so even a slight increase in speed with a bunch of tabs open is worth for me to do the $200 package up front. Thanks so much for the quick reply!

 

[ThunderSkunk]

Yeah I've got a couple maxed out 2019's, with 128 on one and 96 on the other. No troubles, no hassles. Worth every penny.

It's when you get upgraditis and pop a second SSD inside it that you start to run in to trouble. On paper it should be lickety split, and the hardware will let you do it, but if your imac wasn't a hybrid model to begin with, it'll eventually screw up the second SSD's permissions to read-only during boot and the only way to solve is to blow away the drive.