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Question: Questions about memory for my 27" iMac (late 2015)

I have a late 2015 5K Retina 27" iMac, have 20 GB (4) 4 GB DIMMS installed and am getting some performance issues after installing Illustrator and Photoshop CC 2018, as well as my clipboard not being able to copy or paste objects, and other functions that cease working after a while in my 3D program. I have to restart the app to resolve the issue. I'm under the impression I need more memory. According to the memory specs I get when I bring up "About this mac", it says I can only put a maximum of 32 GB in. I've seen higher numbers. Which is correct? Also, do I have to pair my DIMMS?



iMac with Retina 5K display, macOS Sierra (10.12), Intel Core i5 4 Cores, 16GB Ram

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Dec 12, 2017 7:15 AM in response to carlart In response to carlart

Please post an EtreCheckreport of your system. We can then look for obvious issues. Please click the link, download the app and run the report. Once you have the report, please copy and paste it as your reply to this post.

Dec 12, 2017 7:15 AM

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Question: Questions about memory for my 27" iMac (late 2015)