Memory not taking on Macbook Pro

Discussion in 'MacBook Pro' started by scubaj, Oct 26, 2009.

  1. scubaj macrumors member

    Aug 30, 2007
    Worked in IT for many years now...(iow I know how to install RAM)...

    Got a Macbook Pro about two years ago and decided it's time to add some more horsepower under the hood (so to speak).

    Based on the spec sheets here:

    and here:

    I got this memory here:

    Product Category: MacBook Pro 2.4Ghz Intel Core 2 Duo 15” June 2007
    Configuration: 4GB Kit (2 x 2GB) DDR2-667 SO-Dimm:R:
    Quantity: 1

    From here:

    Now, when I installed the memory, the front light blinks 3 times and nothing happens. I re-seated the RAM twice and get the same thing. Put the original memory back in and it powers up fine...getting ready to return the RAM but am wondering which memory to order - any gurus out there that can help me with this?

    (My problem is that the specs are merged between 2.2 and 2.4 Ghz processors on Mac site, but vendor sites seem to differentiate between the two...I went with this because it seems that the specs matched both systems, but apparently now...)
  2. no3tic888 macrumors member

    Jan 31, 2008
    You seem to have the right memory. The 3 blinks is indicative of bad ram. That happens sometimes. Just return them for an exchange. They usually have lifetime warranties. I usually get my memory from OWC, Here's your spec page:

    Good luck. :)
  3. scubaj thread starter macrumors member

    Aug 30, 2007
    Thanks - I've had others refer me to OWC and MacSales as well. It's not really the vendor where I am confused though. My confusion stems from the fact that Apple does not distinguish between the 2.2 and 2.4 Ghz processors, but resellers of RAM do:

    So, if Apple says they take the same memory, and the resellers say "no they don't"....

    Who am I supposed to believe?

    Attached Files:

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