One beep at Startup, replaced RAM, still beeping

Discussion in 'iMac' started by Paul B, Oct 27, 2013.

  1. Paul B macrumors 6502

    Joined:
    Sep 13, 2007
    #1
    Hi MR,

    Like the title says, my iMac is beeping once every five seconds at startup. Results from Google all say this means the iMac is not detecting any RAM.


    First I tried reseating the RAM, in the same slots, different slots, and that didn't work.

    Then, thinking that my RAM sticks went bad, I bought new RAM. Put them in and they didn't work either.

    So now I have no idea what's wrong. Is this now a problem with the logic board not detecting the RAM? am I going to have to replace the entire logic board?
     
  2. Paul B thread starter macrumors 6502

    Joined:
    Sep 13, 2007
    #2
    Would love to get some insight on this, if anyone has been in a similar situation. Been scouring the net and it seems most people resolved this by reseating the RAM...
     
  3. Bruno09, Oct 27, 2013
    Last edited: Oct 27, 2013

    Bruno09 macrumors 68020

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    Aug 24, 2013
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    Far from here
    #3
  4. Paul B thread starter macrumors 6502

    Joined:
    Sep 13, 2007
    #4
    My iMac doesn't boot up at all. After powering on, goes straight to the beeping.
     
  5. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #5
    Try running the Apple Hardware Test and see what that turns up.
     
  6. Bruno09 macrumors 68020

    Joined:
    Aug 24, 2013
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    Far from here
    #6
    Did you test with the old RAM ?

    Are you sure the new one is the right one for your Mac ?
     
  7. The-Pro macrumors 65816

    Joined:
    Dec 2, 2010
    Location:
    Germany
    #7
    only if it beeps 3 times in a row is ram the issue, as far as i know,

    wait sorry thats incorrect. dont mind me :D
     
  8. Paul B thread starter macrumors 6502

    Joined:
    Sep 13, 2007
    #8
    Yes and yes.

    ----------

    I just tried this (holding D) but nothing comes up. Just a black screen and the aforementioned beeping.

    It's looking more and more like a faulty logic board :(
     
  9. fhopper macrumors regular

    fhopper

    Joined:
    Sep 18, 2007
    Location:
    Wichita Ks.
    #9
    Your original RAM should be known good parts, put them back in. We are all assuming you know how hard you have to push RAM to seat it in slots, it is disturbingly hard sometimes.
     
  10. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #10
    What OS version are you on? Older versions you have to run the hardware test from the grey installer DVD.
     
  11. Paul B thread starter macrumors 6502

    Joined:
    Sep 13, 2007
    #11
    I believe I am doing so. I'm painfully putting them in until it seems they can't go back any further, but this whole process is making me second guess myself...

    OS X 10.6.7 Snow Leopard. The iMac isn't even taking discs at this point.
     
  12. nufanec macrumors regular

    Joined:
    Sep 10, 2005
    #12
    POST beeps:

    1 beep = no RAM installed
    2 beeps = incompatible RAM types
    3 beeps = no good banks
    4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
    5 beeps = processor is not usable

    --

    1 beep is usually the logic board, especially given that you have tried different RAM.
     
  13. 53kyle macrumors 65816

    53kyle

    Joined:
    Mar 27, 2012
    Location:
    Sebastopol, CA
    #13
    This ^^^^^ 1 beep = no ram = bad logic board in this case. Take the computer to an apple store.
     

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