Nick2313

Q: Macbook Pro Retina 15" - 3 beeps (not RAM!)

After almost 4 years of flawless performance, my Macbook Pro Retina 15" produces 3 beeps ever 5 seconds right after I power it up. I did manage it boot it into OS X a few times but after a while it would freeze up and upon restarting it would return into the blank screen, 3 beep / 5 sec mode.

 

I performed a full Apple Hardware Test v. 3A243 which took 2h 5min 54 sec. The results was: "No trouble found". It seemed to have checked all of the memory.

 

The fact that I am sometimes able to boot into the OS X (meaning that the RAM could not be physcially compromised as it does sometimes pass the integrity test at startup) and that the diagnostic took found no errors makes me think that the issue it not memory related.

MacBook Pro (Retina, 15-inch, Early 2013)

Posted on Aug 20, 2016 9:32 PM

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Q: Macbook Pro Retina 15" - 3 beeps (not RAM!)

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