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Mid 2020 27" iMac 5k RAM upgrade Crucial type

M

Macdaddy69420

macrumors newbie
Original poster
Nov 12, 2020
5
0
Hi there.

I see a good price from a local private seller.

CRUCIAL CT2K32G4SFD8266 - A 64 GB kit for cheap.

I look at the Apple specs for RAM in this model and the only difference is 21333 vs 21300

I contacted Crucial and they claim it is not compatible with my iMac but I do not see why not?

Does anyone have this RAM in installed in a 2020 27" 5K iMac?

Thanks
 
kungfuthug said:
Hi there.

I see a good price from a local private seller.

CRUCIAL CT2K32G4SFD8266 - A 64 GB kit for cheap.

I look at the Apple specs for RAM in this model and the only difference is 21333 vs 21300

I contacted Crucial and they claim it is not compatible with my iMac but I do not see why not?

Does anyone have this RAM in installed in a 2020 27" 5K iMac?

Thanks
Click to expand...
It's not compatible for the bus Frequency,thats not just a number, is a Frequency managed by a clock and it dictates the speed at which the buses have to work. So, if You put one thats not compatible, it won't work since they won't work synced and your Mac will just beep when You turn it on.
 
ezugaru said:
It's not compatible for the bus Frequency,thats not just a number, is a Frequency managed by a clock and it dictates the speed at which the buses have to work. So, if You put one thats not compatible, it won't work since they won't work synced and your Mac will just beep when You turn it on.
Click to expand...

Hi. Thanks for the reply.

That’s strange because the RAM that they (Crucial) guarantees to work is also spec’d the same @ 21300
 
Did You check on everymac with your serial? There You can see the possible upgrades.
 
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