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I want to extend the memory of my 5k 27" 2017 iMac. It now has 2 4GB memory modules, so another to modules can be added. Doe these extra modules also need to be 4GB, or can I also add 2 16GB modules?
iMac 27″ 5K, macOS 11.2
It's recommended not to mix capacities and speeds
Install memory in an iMac - Apple Support
For optimal memory performance, DIMMs should be the same capacity, speed, and vendor. Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
If you have mixed capacity DIMMs, see the
install memory section for installation recommendations.
My recommendation would be to just use the 2 16 GB modules. as an extra 8 GB rarely will make much difference.
But you can try and see, as long as you follow the guidelines it should still work.
You can always just remove the 2 4GB modules if it misbehaves.
Good luck!
It's recommended not to mix capacities and speeds
Install memory in an iMac - Apple Support
For optimal memory performance, DIMMs should be the same capacity, speed, and vendor. Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:
If you have mixed capacity DIMMs, see the
install memory section for installation recommendations.
My recommendation would be to just use the 2 16 GB modules. as an extra 8 GB rarely will make much difference.
But you can try and see, as long as you follow the guidelines it should still work.
You can always just remove the 2 4GB modules if it misbehaves.
Good luck!
You can add 2 16GB modules if you like.
Again, adding 2 16GB modules will work fine.
add memory to 5k 27" 2017 iMac
