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Question: Memory replacement iMac 27 Mid 2015

Dear Colleagues

I want to upgrade memory from 2x4GB to 2x16GB (or 4x8GB) with my iMac. Unfortunately listed as compatible RAM modules are not available anymore. I need a little guidance which type (from currently being available) I can use.

Thanks for support


Regards,

Jarek

iMac with Retina 5K display, macOS High Sierra (10.13.3), Mid 2015

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Mar 2, 2018 5:39 AM in response to iJareek In response to iJareek

Macs are fussy about RAM, use only high quality memory modules. OWC (which CountryGirl pointed you to) or Crucial are two trusted vendors.

Crucial has a 45 day money back policy

http://www.crucial.com/usa/en/store-returns-policy

OWC has a 30-day return policy on OWC branded RAM.

https://eshop.macsales.com/service/returnpolicy

EDIT: I was posting when you posted that you are in Europe.

Mar 2, 2018 5:39 AM

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Mar 2, 2018 5:39 AM in response to CountryGirl56 In response to CountryGirl56

My problem is how to find newest one however compatible with Apple

Specification is:


PC3-14900 - > not available anymore

Unbuffered, Non parity, 204-pin -> this is not a problem -> standard

1867MHz -> probably higher frequency shouldn't be a problem

DDR3 SDRAM -> standard

Mar 2, 2018 5:39 AM

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Mar 2, 2018 7:29 AM in response to CountryGirl56 In response to CountryGirl56

You are right! I looked to the wrong table!

Get memory specifications for iMac (Retina 5K, 27-inch, Late 2015), then learn how to install memory in this model.

Memory specifications

This iMac model feature Synchronous Dynamic Random-Access Memory (SDRAM) slots near the bottom of the computer with these memory specifications:

Number of memory slots

4

Base memory

8GB

Maximum memory

32GB

Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria:

  • PC3-12800
  • Unbuffered
  • Nonparity
  • 204-pin
  • 1600MHz DDR3 SDRAM

Mar 2, 2018 7:29 AM

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Question: Memory replacement iMac 27 Mid 2015