can i install 2- 4 GB's in bottom two slots if i have 2-2GB's of memory in the top slots on my 27in. macbook late 2009 i7 core. should they be the sam

1067 MHZ DDR3 , 2.8 GHZ i7

  • Asked by Pattie H from North Port
  • Oct 8, 2012
Apple Memory Module 8GB 1333MHz DDR3 (PC3-10600) - 2x4GB

Apple Memory Module 8GB 1333MHz DDR3 (PC3-10600) - 2x4GB

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1 Answer from the Community

  • Best Answer:

    No, to any computer or notebook work properly it is best to change all ram memories to exactly the same size and manufacturer, or you will have trouble crashing the computer and that can damage your hard drive.

    • Answered by Paulo Marcelo A from Knoxville
    • Nov 9, 2012