Dealer will perform memory upgrade 2017 21.5 iMac non Retina

[Airsculpture]

As long as I bring the memory, he will perform the memory upgrade.

I noticed that the 2 x 4GB memory currently installed is 2333Mhz or 2133Mhz ( can't remember ) but I was directed to these by a user on another forum https://eshop.macsales.com/shop/memory/imac-2017-21.5-inch

As they state 2400Mhz I was wondering whether these are the right ones for my iMac ? I didn't want to go to all the trouble and the dealer say they are the wrong ones for my machine.

I'm pretty unfamiliar with memory, only done it once before years ago and had a little trouble with mismatches.

 

[Fishrrman]

The iMac has to be completely disassembled to "upgrade" the RAM.
What if the RAM you bring the repair guy doesn't work?

My advice:
Leave it as it is.
Keep using it as it is a year or two more.
When the new m1 (or m2) iMacs come out, get one of them.

 

[Airsculpture]

99% of the time it flies with my external SSD used as the boot volume.

The only time it struggled was when I was running Handbrake, downloading, browsing and running iTunes at the same time. Music started to stutter in iTunes.

On my old 2011 iMac with 12GB RAM, that wasn't an issue. I guess I was getting to the limit of the 8GB RAM on the 'new' 2017 iMac.