Please visit the new Mac-Forums Facebook page:
https://www.facebook.com/macforums1




Results 1 to 9 of 9
  1. #1
    Memory Upgrade recommendations

    Member Since
    Dec 03, 2017
    Location
    CA
    Posts
    4
    Your Mac's Specs
    iMac (Retina 5K, 27-inch, Late 2015) 4 GHz Intel Core i7 AMD Radeon R9 M395X 4096 MB
    Rep Power
    0
    Memory Upgrade recommendations
    Looking to upgrade my Mac (Retina 5K, 27-inch, Late 2015) 4 GHz Intel Core i7 from 8 GB 1867 MHz DDR3 to max 32GB. Looking for brand suggestions and possible snags in the process.
    Much appreciate the feed back

    Thanks Matt

  2. #2
    Memory Upgrade recommendations
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    25,193
    Your Mac's Specs
    iMac, i7 4GHz, 32GB memory, 1TB Blade, OS X.14.6 Mojave,
    Rep Power
    31
    Only two Matt are OWC and Crucial, both Mac specialists. Do not buy from a PC shop or an auction site as Macs are very fussy about memory.


    https://eshop.macsales.com/shop/memo...a-5K2015/DDR3L
    Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  3. #3
    Memory Upgrade recommendations
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    6,405
    Your Mac's Specs
    L2014 Mac mini macOS 14, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Rep Power
    13
    Max for that model year iMac is 64GB, https://everymac.com/systems/apple/i...015-specs.html. At the time of build, 16GB modules weren't available.

    OWC, https://www.macsales.com, or Crucial, https://www.crucial.com, for memory brand. Can get them cheaper (usually) at Amazon or eBay.
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  4. #4
    Memory Upgrade recommendations
    Slydude's Avatar
    Member Since
    Nov 16, 2009
    Location
    North Louisiana, USA
    Posts
    14,311
    Your Mac's Specs
    2.8 GHz 2008 MacBook Pro 10.11, 8 GB mem, iPhone XS, 2015 iMac 16 GB 10.14.4 beta
    Rep Power
    24
    While you are deciding to upgrade memory don't be tempted to waste money getting more memory than you might need. I speak from experience. You may notice a speed difference going from 8 GB to 16 GB but a lot of whether you notice the difference depends upon what you do with the computer. Sometimes the slowdown is in your network connection or disk drive speed. Many users will not notice any difference at all when they go beyond 16 GB.

    Here's one way to get an estimate of the amount of memory you might need:
    1. Reboot your Mac to clear things out.
    2. Launch Activity monitr (in the Utilities folder) and click on the Memory tab.
    3. Now go about your usual computer activities and notice whether the graph at the bottom of the Activity Monitor window turns yellow or red. If it does more memory may produce a speed difference.
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  5. #5
    Memory Upgrade recommendations

    Member Since
    Dec 03, 2017
    Location
    CA
    Posts
    4
    Your Mac's Specs
    iMac (Retina 5K, 27-inch, Late 2015) 4 GHz Intel Core i7 AMD Radeon R9 M395X 4096 MB
    Rep Power
    0
    Thank you all so much for the feedback! Surprised by the 64GB max out. I have 500GB SSD system drive, but i pull all my photos in to Lightroom (everything, Docs, video etc stored here) from a 3TB external Seagate Backup plus. that is probably my slow down. So I was thinking just upgrading to 16Gb RAM. Would it be functionally better to do 4 Gb or 2Gb?

    - - - Updated - - -

    I'm obviously new to Mac.

  6. #6
    Memory Upgrade recommendations
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    41,147
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    Rep Power
    43
    Quote Originally Posted by MVatt View Post
    Would it be functionally better to do 4 Gb or 2Gb?
    Depends on how the RAM slots are currently populated...how much the cost of RAM is...and what the size of your RAM upgrade budget is.

    With 8gig of RAM currently...does it have 2gig x 4 or 4gig x 2 installed?

    - If it currently has 2gig x 4 installed (all RAM slots filled)...then you MUST remove all 4 of the 2gig RAM sticks...and MUST install at least 4 x 4gig to get 16gig.
    - If it currently has 2gig x 4 installed (all RAM slots filled)...then you could remove 2 of them...and install two 8gig sticks of RAM for a total of 20gig.
    - If it currently has 4gig x 2 installed (two RAM slots free)...then you could install two more 4gig sticks of RAM to equal 16gig.
    - If it currently has 4gig x 2 installed (two RAM slots free)...then you could install two 8gig sticks of RAM for a total of 24gig.

    The advantage of installing 8gig sticks of RAM now...is if you want more RAM later...then you add 2 more 8gig sticks of RAM (total of 4 x 8gig) equaling 32gig of RAM.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  7. #7
    Memory Upgrade recommendations

    Member Since
    Dec 03, 2017
    Location
    CA
    Posts
    4
    Your Mac's Specs
    iMac (Retina 5K, 27-inch, Late 2015) 4 GHz Intel Core i7 AMD Radeon R9 M395X 4096 MB
    Rep Power
    0
    I like option number two. Thanks!
    If it currently has 4gig x 2 installed (two RAM slots free)...then you could install two more 4gig sticks of RAM to equal 16gig.
    If it currently has 4gig x 2 installed (two RAM slots free)...then you could install two 8gig sticks of RAM for a total of 24gig.

    Mvatt

    I have many more questions BUT thanks for all the help!

  8. #8
    Memory Upgrade recommendations
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    41,147
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    Rep Power
    43
    Quote Originally Posted by MVatt View Post
    I like option number two. Thanks!
    If it currently has 4gig x 2 installed (two RAM slots free)...then you could install two more 4gig sticks of RAM to equal 16gig.
    If it currently has 4gig x 2 installed (two RAM slots free)...then you could install two 8gig sticks of RAM for a total of 24gig.
    I think that's actually option #4.

    Just teasing.

    - Nick

    p.s. If there are more questions...please ask away.
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  9. #9
    Memory Upgrade recommendations

    Member Since
    Dec 03, 2017
    Location
    CA
    Posts
    4
    Your Mac's Specs
    iMac (Retina 5K, 27-inch, Late 2015) 4 GHz Intel Core i7 AMD Radeon R9 M395X 4096 MB
    Rep Power
    0
    Wink
    Quote Originally Posted by pigoo3 View Post
    I think that's actually option #4.

    Just teasing.

    - Nick

    p.s. If there are more questions...please ask away.

    LOL! Thank you!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. White unibody MacBook memory recommendations
    By hirsch328 in forum Apple Notebooks
    Replies: 1
    Last Post: 06-14-2012, 07:24 PM
  2. imac memory recommendations?
    By Straitsfan in forum Apple Desktops
    Replies: 2
    Last Post: 07-29-2008, 12:00 PM
  3. Mac mini HD upgrade Recommendations
    By mhoskins in forum Apple Desktops
    Replies: 0
    Last Post: 03-16-2008, 05:45 PM
  4. Memory Upgrade Recommendations
    By Mad-Mac in forum Apple Notebooks
    Replies: 1
    Last Post: 01-04-2008, 10:21 PM
  5. Upgrade Recommendations For G5 Power Mac
    By chris86 in forum Apple Desktops
    Replies: 1
    Last Post: 04-10-2007, 01:20 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •