Beep on Startup - What Does It Mean?

Discussion in 'Mac Basics and Help' started by John Doe 57, Mar 21, 2009.

  1. John Doe 57 macrumors 65816

    John Doe 57

    Joined:
    Jan 26, 2008
    Location:
    Los Angeles, CA
    #1
    I started up my MacBook Pro this morning and heard a quick "beep" noise come right before the Apple Tone startup noise. Is this just a small glitch or is it a code for something more serious?

    Thanks
     
  2. BlueRevolution macrumors 603

    BlueRevolution

    Joined:
    Jul 26, 2004
    Location:
    Montreal, QC
    #2
    Well, a single beep supposedly means that your computer has no memory (or isn't recognizing its presence). Why the computer should then proceed to start up at all I don't know. If it works, I don't think you need to be worried about it. I doubt that it'll deteriorate down the road.
     
  3. John Doe 57 thread starter macrumors 65816

    John Doe 57

    Joined:
    Jan 26, 2008
    Location:
    Los Angeles, CA
    #3
    Alright, thank you. I've been using it since 9am and have had no problems.
     
  4. IJ Reilly macrumors P6

    IJ Reilly

    Joined:
    Jul 16, 2002
    Location:
    Palookaville
    #4
    The beep you hear when RAM is not installed or is installed improperly is long, loud, and hard to miss. If you hear this beep only once and for a short duration I suppose you don't need to worry right now -- but if it were me I'd be concerned if I ever heard it again. Possibly your RAM has some sort of intermittent fault. Have you upgraded it?
     
  5. John Doe 57 thread starter macrumors 65816

    John Doe 57

    Joined:
    Jan 26, 2008
    Location:
    Los Angeles, CA
    #5
    I have not upgraded it. I got my MacBook Pro on Christmas Day 2007. I have 4GB of RAM installed in it. I'll be on the lookout for another beep. Thanks.
     
  6. howardc64 macrumors newbie

    Joined:
    Mar 14, 2011
    #6
    I know this is old thread but chiming in same issue here to see if anyone else have encountered this.

    Early 2008 MBP 4,1. Faint short beep (not the long loud beep on no memory, memory is known good) just before bong and system boots fine. Had recent problems with this MBP where it sleeps and doesn't boot again (had to use this trick to get it to boot https://discussions.apple.com/message/28046678#message28046678) Wondering if the faint short beep indicates some problems
     

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