27" iMac (October 2009) Startup Problem

Discussion in 'Mac Basics and Help' started by Maskot, Nov 23, 2013.

  1. Maskot macrumors newbie

    Joined:
    Nov 30, 2011
    #1
    Here's the gist, I've had this iMac for four years, I've replaced the hard drive after it failed, and I've been having a problem over the past couple months during startup.

    When I turn it on, it gives a long beep, the screen remains black and eventually I hear the dvd drive spin up and the screen remains black indefinitely. I restart again, no beep, but screen is black. Restart a third time, same thing as second time. Restart a fourth time, same thing. Restart on the fifth time, I hear the dvd drive spin up right away and the loading screen pops up.

    I've verified this is not a ram problem, it shows that I have all 16GB installed through the About Mac window. I've also reseated the ram in various arrangements.
     
  2. stract macrumors member

    Joined:
    Sep 13, 2013
    #2
    basically, there are beep codes...according to this article, a single beep indicates an issue with RAM.

    https://support.apple.com/kb/HT1547

    even though you've checked your RAM, maybe the issue isn't with the RAM itself, but possibly some unreliability with POST finding the RAM on startup. Maybe it's a hint your motherboard is having issues, but that's outside my depth.
     
  3. Maskot thread starter macrumors newbie

    Joined:
    Nov 30, 2011
    #3
    https://www.facebook.com/photo.php?v=712705422090688&l=736244811028979914

    I videoed the problem, it seems other people are having a similar problem, I assure you it's nothing to do with ram.
     

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