please can someone tell me if i'm about to buy the correct ram...

Discussion in 'MacBook' started by jonahtron, Jul 17, 2011.

  1. jonahtron macrumors member

    Joined:
    Jun 2, 2011
    #1
    hi, im just about to purchase for my early 2008 white macbook the following...

    2GB, 200-pin SODIMM, 256MX64, DDR2 PC2-5300 (crucial)

    as far as i know this is absolutely fine, and mactracker tells me i need

    200-pin, PC2-5300(667 MHz), DDR2 SODIMM

    the only confusion im having is that the seller doesnt list the Hmz speed and i dont know what 256MX64 refers to...

    i honestly have googled but found it more than a little confusing to be honest.

    any help would be appreciated
    thanks
     
  2. gr8tfly macrumors 603

    gr8tfly

    Joined:
    Oct 29, 2006
    Location:
    ~119W 34N
    #2
    256M x 64 describes the capacity of the SODIMM in megabits. If you convert it to bytes, you would multiply the 256Mb x 8, which comes out to 2GB ((64bits / 8bits per byte) * 256,000,000 bits).

    DDR2 PC-5300 runs at 667MHz.

    It should be the correct device, though usually sellers have a cross-reference to the make/model of your machine. Check Crucial's home site - they should have a reference there. Your User's Guide also has a description of the correct type for your Mac.
     
  3. jonahtron thread starter macrumors member

    Joined:
    Jun 2, 2011
    #3
    If I didnt sat that this was the most useful and perfect response,
    i'd be seriously lacking in form.

    thankyou very much!

    problem solved
     

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