How to check if RAM pair is matched or not?

Discussion in 'Mac Basics and Help' started by prady16, Feb 28, 2008.

  1. prady16 macrumors 6502

    prady16

    Joined:
    Aug 24, 2006
    Location:
    Right There --->
    #1
    I just bought a 1GB stick of Kingston 667MHz, PC2-5300 DDR2 RAM.

    My MBP came with one Samsung RAM.

    I have made sure that the speed and size of both the RAM's match, but i was wondering if it really makes a "matched pair"?

    Is there a piece of software or a script which can determine if the RAM pair is matched or not? I tried running the following command in terminal, but it returned nothing:
    ioreg -p IODeviceTree -n memory -S | grep ram-

    Thanks in advance.
     
  2. abijnk macrumors 68040

    abijnk

    Joined:
    Oct 15, 2007
    Location:
    Los Angeles, CA
    #2
    When people say "matched" RAM they mean the same brand and size and speed.
     
  3. iPhil macrumors 68040

    iPhil

    #3
    Layman's terms:

    1G + 1G = matched pair no matter brand... << runs @ full speed (667 mhz)

    1G + 2G = unmatched pair.. << will run @ half speed of ram speed (333 mhz)
     
  4. abijnk macrumors 68040

    abijnk

    Joined:
    Oct 15, 2007
    Location:
    Los Angeles, CA
    #4
    I would have to disagree about the brand. It is always a good idea to have the same brand if posible, especially as cheap as RAM is these days.
     

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