know what happens when electricity arcs across circuits? One discoloured (electrically burnt) piece of metal that didnt belong anywhere in my MBP. I used compressed air to remove these small electrical hazards from my MBP However I noticed when the MBP was open that there were small little pieces of metal shavings.(the kind found in a machinists shop) so back on the phone with apple support I went.Ī really nice guy on the other side of the phone instructed me to physically test the ram by taking them out and putting them back in one at a time.īoth ram sticks passed the test and hardware testing afterwards as well. I went to turn on my MBP and all it would do is beep at me. The next day after feeling so proud of myself for finally tracking down the problem.

I also did a hardware test from the apps disk (os x disk 2) Thinking this might be the cause, I did what was asked of me. I contacted apple support right away and they taught me to reset the PRam. I was pretty confused about the whole beeping thing first thinkingĪnd then searching google I found alot of people were having beeping troubles. Sometimes I turned on my MBP it didnt do this. I recently bought one of the brand new 2010 MBP '15 2.4 i5.ĭirectly out of the box it began to beep at me.

2010 macbook pro 3 beeps wont power up