Long beep sound followed by flashing LEDs on boot

Discussion in 'Mac Pro' started by howesey, Feb 20, 2006.

  1. macrumors 6502a

    Joined:
    Dec 3, 2005
    #1
    Just booted up my iMac, and every time I get a long beep from the speakers, followed by 3 or 4 flashes of the LED on the front, then the gong goes as normal and then OS X loads. :confused:

    Anything to worry about?
     
  2. macrumors 65816

    CoMpX

    Joined:
    Jun 29, 2005
    Location:
    New Jersey
    #2
    By any chance did you recently upgrade to 10.4.5? This is a fairly common symptom of it from what I have seen on the forums. Does this happen every time you reboot?
     
  3. thread starter macrumors 6502a

    Joined:
    Dec 3, 2005
    #3
    Yes, 10.4.5 here.
     
  4. Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #4
    Sounds like maybe it's trying to update some firmware? I'd check the Apple forums.
     
  5. macrumors 68040

    Kingsly

    #5
    On Apple's support site there is a page regarding tones/flashes on startup. it has something to do with bad RAM I believe. Try searching the Apple support site.
     
  6. macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Cuidad de México
    #6
  7. macrumors 68040

    Kingsly

    #7
    Found it...
    http://docs.info.apple.com/article.html?artnum=58442

     

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