2 Replies Latest reply: May 6, 2012 4:26 AM by codyjoe20
codyjoe20 Level 1 Level 1

So I recently purchased 8 GB of RAM to upgrade my 2010, 13", Intel Core 2 DUO, 2.4GHz with Lion MacBook Pro from the original 4 GB it had. But once the new RAM sticks were installed. The computer proceeds to but to the Grey Apple logo during boot and freezes every-time the wheel begins to spin. From that point I decided to put one of the original 2 GB sticks back into the computer and leave one of the new 4 GB sticks in as well. Guess what, the computer booted fine.


This makes no sense to me as I know this computer can take 8 GB of RAM but yet it will only work when I have one of the original sticks in making my total RAM 6 GB. Any ideas how to fix this issue?


Here is the exact RAM stick I ordered:


MacBook Pro, Mac OS X (10.7.3)
  • kostby Level 4 Level 4

    Welcome to Apple Support Communities.

    I hope you have return privileges.


    Macs are notoriously 'picky' about RAM. Just because modules are advertised as meeting the specs doesn't mean they will work reliably.


    I learned the hard way with a RAM upgrade from a manufacturer who did not guarantee Mac compatibility. They did replace them once, yet the RAM still didn't work without frequent Kernel Panics.


    RAM from Apple, Crucial, and OtherWorldComputing (www.macsales.com) seems to work well for most people who discuss it here in the forums. With other brands, sometimes it works, sometimes it does not.

  • codyjoe20 Level 1 Level 1

    Yeah I'm just going to refund the RAM I got from Amazon. I'm not going to bother for now cause I don't want to deal with all of this anymore.