For my Imac 18,2 I need "2400‑MHz DDR4-memory" .
I can get similar "2400‑MHz DDR4-memory SO-DIMM" meant for a iMac 18,3 (27") from someone for whom it is redundant.
As far as I see it is compatible. And I can use it.
Hope you can shed some insights.
iMac 21.5″ 4K, macOS 10.15
Yes it works,
this is an Italian user's feedback:
ho comprato questo memory upgrade con il dubbio che non funzionasse (cambiare la memoria su un imac 21.5" 4k non è una passeggiata).
Tutto ha funzionato alla perfezione!
When in doubt I ask if it would work, but I am glad others just go ahead to test the ice. .
Both Crucial.com and Macsales.com make extremely high quality products. Their RAM has a lifetime warranty, products are reasonably priced, the service is great and the list goes on. Most experienced users on these forums use these vendors for their RAM upgrades. Personally on my 2020 iMac I bought Macsales.com RAM however I have used Crucial.com too and have never had any issues with either vendor.
Sure I know.
It is that I can get my hands on those Authentic Apple 2400‑MHz DDR4-memory SO-DIMM memory cards; otherwise everyone will tell me to go for OWC :-)
Specs wise they are similar. But ho, specs in a list is different from real capabilities in-vitro.
And there is an apple-shop over here that charges for the disassembly + bring your own device, assembly; and if needed, the porting. They themselves generally provide Crucial memory. Then they have a fixed upgrade price.
OK, I get the idea.
But again: is the 27" card compatible with the 21.5" RAM card? I can get 2x16GB and it is enough; it is used and cheaper than the Crucial (a price for a friend). So what is holding me back?
You should use what the shop recommends. However please check that they are an Apple Authorized Service Provider and not just a general repair shop. I would NEVER trust my Mac with anyone but an Apple Authorized Service Provider.
The RAM on the 21.5" iMac is non-user accessible. You have to take it completely apart to install RAM. Something best left to an AASP.
That is a good tip. Their Crucial is cheper too.
My idea is just that the Apple original parts are better . . .
Can I put iMac 27" 2017 1- 8,3 memory in an iMac 21.5", 2017 - 18,2?
