iMac startup sound

Discussion in 'iMac' started by kobefan234, Sep 1, 2008.

  1. kobefan234 macrumors 6502

    kobefan234

    Joined:
    May 12, 2008
    #1
    Sometimes when i turn on my iMac it makes this beeping sound but when I unplug the power and put it back in it work why does this happen?
     
  2. gehrbox macrumors 65816

    gehrbox

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    Charleston,SC
    #2
    Other then the startup bong sound, Mac's can make a series of beeps to indicate a power on self test (POST) failure. The pattern of the beeps indicates the type of failure.

    Here are the beep patterns and their cause
    1 beep = no RAM installed
    2 beeps = incompatible RAM types
    3 beeps = no good banks of RAM
    4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
    5 beeps = processor is not usable
     
  3. kobefan234 thread starter macrumors 6502

    kobefan234

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  4. gehrbox macrumors 65816

    gehrbox

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    #4
    Other then the startup bong you should not hear any beeps. If you have any accessories connected (aside form mouse and keyboard) try booting without them connected.
     
  5. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #5
    mine beeped today again but I unplugged it and it worked!

    I hope nothing is wrong with my iMac !
     
  6. kobefan234 thread starter macrumors 6502

    kobefan234

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  7. viggen61 macrumors 6502

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    New Jersey
    #7
    Did you read gehrbox's reply? Next time it happens, count the beeps. They usually repeat after a few seconds. That'll tell you what the problem is. If it is RAM related, you might need to re-seat the memory.

    My favorite startup sound was the "car crash" that the first PowerMacs made when something went wrong...

    :apple::apple:
     
  8. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
  9. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #9
    It happened again and I counted the beeps there was a beep,beep,beep then a pause then a beep, beep ,beep it kept on doing this about 12 times i took the power out restarted the mac, and it was fine??

    still i want to why and if it is common with iMac's
     
  10. nufanec macrumors regular

    Joined:
    Sep 10, 2005
    #10
    Try reading above again. Seriously.

    3 beeps means there are no good banks of RAM when the iMac tries to POST (again see above). This means that there is an intermittent problem with your iMac's RAM modules or logic board.

    If you have installed 3rd party RAM, try re-seating the modules incase you did it wrong, then if it still does it request warranty replacement of the RAM modules from the supplier as they are possibly faulty.

    If it is stock, or it is still happening after replacing 3rd party RAM, take it into your nearest Apple Store after booking a Genius Bar appointment.
     
  11. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #11
    It not 3rd party Ram it is apples ram!

    I will make a genius bar appointment
     
  12. gehrbox macrumors 65816

    gehrbox

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    #12
    Apples RAM is subject to failure just as any other memory. It could just need to have its memory sticks reseated. If reseating the memory does not cure the problem you either have a bad stick of RAM (most likely) or your system board has a fault that is preventing it from correctly performing a POST.
     
  13. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #13
    if i make a genius bar appointment will they ask for my receipt?
     
  14. gehrbox macrumors 65816

    gehrbox

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    #14
    Your serial number will be in the Apple database for warranty verification. No need for a receipt.
     
  15. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #15
    I made the genius bar appointment

    thanks 4 all the help!!
     
  16. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #16
    I went to the genius bar and they said that there was no problem with the banks of ram.
    He said I held the power button for too long this is why the 3 beeps were happening.

    Has that happened to anyone?
     
  17. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #17
    It HAPPENED again the three beeps at the startup I think something is wrong with my iMac i will post a video shortly to show what I am talking about.:mad:
     
  18. gehrbox macrumors 65816

    gehrbox

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    #18
    Nope
     
  19. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #19

    after I came back from the genius bar it happenedd again the three beeps!
    I guess I will have 2 return my iMac and get a new one!
     
  20. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
  21. alexlovesmacs macrumors 6502a

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    Apr 23, 2008
    #21
    Make another genius bar appointment and show them the video on your iPhone.
     
  22. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #22
    ok thanks
    and how much could I get for a used 2.8 ghz 24inch iMac?
     
  23. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #23
    i Made another genius bar appointment hopefully they help out
     
  24. kobefan234 thread starter macrumors 6502

    kobefan234

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    May 12, 2008
    #24
    I went to the apple store and they took out the ram and put it back in and they said one of the ram chips was loose inside so he fixed it
     
  25. kobefan234 thread starter macrumors 6502

    kobefan234

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