How to Determine if New Memory is DOA?

Discussion in 'Mac Basics and Help' started by MacDano, Apr 6, 2009.

  1. MacDano macrumors newbie

    May 28, 2008
    St. Paul, MN
    Thanks in advance for your help.

    I recently purchased two 2GB memory modules from OWC to upgrade my MacBook 2.4 Core 2 Duo. The memory arrived and I verified the packing slip matched what I had ordered.

    The install went smoothly. Upon turning on my Mac, instead of booting up I got a gray screen and 3 repeatable beeps. These sounded like "warning alerts", so I immediately shut down and tried to power up again - with the same result.

    I reopened my Mac and confirmed everything was done correctly by popping out the sticks and re-inserting to make sure the modules we're properly seated. Turned on the machine and got the same thing.

    Nervously, I re-installed the factory modules and (thankfully) my Mac booted up just fine.

    So does this mean that the memory I received is DOA? Is there anything else those 3 warning beeps might have been indicating? I'm 99 percent sure the memory I received is matched for my machine, so all I can assume is that it's faulty?

    Can anyone verify my assumption before I contact OWC to help me rectify the situation?

    Many thanks,
  2. flopticalcube macrumors G4


    Sep 7, 2006
    In the velcro closure of America's Hat
    Try 1 stick at a time. It may be only one that is faulty.
  3. BlueRevolution macrumors 603


    Jul 26, 2004
    Montreal, QC
  4. Jack Flash macrumors 65816

    May 8, 2007
  5. MacDano thread starter macrumors newbie

    May 28, 2008
    St. Paul, MN

    I have an early 2008 black MacBook 2.4 GHz Intel Core 2 Duo, containing 2 GB 667 MHz DDR2 SDRAM (taken exactly from my "About this Mac" screen

    What OWC shipped me was two 2GB PC5300 DDR2 667 MHz 200 Pin SO-DIMM (taken from my packing slip)

    This is what OWC recommended for my model. Does this look correct?

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