Loud beeping sounds on MacBook Pro

[akishimo]

For the past couple of months my MBP has been emitting loud beeps from the speakers:

1) It beeps SUDDENLY
2) Lasts between 2 - 10 sec
3) After which my MBP volume generally goes down by 50%

The beeps are reminisce of old PCs when you press a key too much and the comp hangs, or I think it is the same kind of beep for some start-up troubleshoot methods on MBP.

Anyone has had similar experience or knows why this is happening?

 

[ElphabaPotter]

Me too - EXACT same loud beep issue.

For the past couple of months my MBP has been emitting loud beeps from the speakers:

1) It beeps SUDDENLY
2) Lasts between 2 - 10 sec
3) After which my MBP volume generally goes down by 50%

The beeps are reminisce of old PCs when you press a key too much and the comp hangs, or I think it is the same kind of beep for some start-up troubleshoot methods on MBP.

Anyone has had similar experience or knows why this is happening?

I JUST had this happen to me too. I've been searching around the internet (and these forums) and have come to the conclusion that this is a RAM issue. I found this thread: https://forums.macrumors.com/threads/622245/

And in particular a post by mkrishnan saying this:

- Bad memory module (which would need to be replaced)
- Bad memory slot (logic board would need to be replaced)
- Badly seated memory module (you can actually check this yourself, if you're comfortable doing it).


This actually makes sense for my situation because I was using Garageband and playing back my audio when I got the warning saying that playback could not happen because of lack of memory (which shouldn' be a problem for me because I run everything in the CS4 Master Collection with no problem. So I'm going to check that my RAM is seated properly (it's OWC ram).

I hope that ends up being the problem because I don't know how I would decipher between the first two possibilities by myself (aka by NOT going to genius bar).

I will report back...

 

[ElphabaPotter]

So I cracked open my MBP and decided to take a look at the memory modules. Neither looked any different from before and they appeared to be seated properly. Nonetheless, I removed both and just swapped their places.

When I booted back up, my volume had come back to normal.

When I opened Garageband and began to play the audio back, it appears to be normal again.

Still perplexed and I don't think I fixed anything. We shall see.

 

[Rampant.A.I.]

Come to think of it, my Powerbook G4 did the exact same thing when the memory slot was dying.