Blinking bar on boot and then shuts down

Discussion in 'macOS' started by greengiant129, Jan 8, 2012.

  1. greengiant129 macrumors newbie

    Jan 7, 2012
    I recently performed a Software Update for Snow Leopard, and after it started to install the updates, it said the update failed and asked me to restart since I had no other choice (it was in the process where everything was unavailable while it was installing the updates).

    So Restarting was the only option available for the error, and I clicked it. My Macbook Pro restarted, and it showed the Apple logo and then a status bar underneath it showed up. The status bar began to progress (filling up the bar with a gray color), but just as it started to (only a little gray was there), the status bar started to blink a few times (maybe 2-4 times) and then my computer promptly shut down without rebooting.

    I turned on the computer again and it repeated the same thing.

    So I used my Snow Leopard DVD to erase the ENTIRE hard drive and reinstall it onto a clean hard drive. After the Snow Leopard DVD finished installing, it said it was successfully installed and to restart. So I clicked on Restart Now or whatever, and the computer reboots. But now it does the same thing with the status bar whole thing again.

    I can record the whole phenomenon with a camera if need be, but is anyone familiar with this and know what's going on?
  2. simsaladimbamba

    Nov 28, 2010
  3. greengiant129 thread starter macrumors newbie

    Jan 7, 2012
    I ran a /dev/random on the hard drive before I formatted it, but I don't think that really makes a difference, right?
  4. Globalksp macrumors newbie

    Jun 21, 2010
    I'm having this same issue.

    I was having RAM problems (three beeps of death) for about two weeks before this behavior started. I removed and reinstalled the aftermarket RAM that has been in the computer since day 1 with no luck. I don't have my original RAM with me.

    Have an appointment for service, but any ideas what this could be?

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