27" iMac (October 2009) Startup Problem

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

  1. Maskot macrumors newbie

    Nov 30, 2011
    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

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


    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

    Nov 30, 2011

    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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