It is in Italian, but what the tech does is pretty clearly demonstrated, and someone in the comments section explains it in detail.īasically, you insert something non-conductive underneath the bottom RAM slot, and that stabilizes the RAM so that the laptop stops this lines, freeze, shut-down, 3 beeps thing.ĭo yourself a favor and watch this video! I followed the instructions yesterday and my laptop is back to its old, reliable self. I was just considering the necessity of purchasing a new laptop that I currently cannot afford AT ALL, when I came across this video: This is REALLY a pain because a laptop is supposed to be portable. If I tried to restart it, yes, that’s right: 3 BEEPS! At first, the 3 beeps would sound if I moved my laptop to another room, but soon, I only had to look at it wrong and then I’d get lines across the screen, everything would freeze, then my laptop would shut down. MacBook Pro 15', Early 2011, i7 2.I tried physically reseating my RAM and that worked for a while, but the problems reappeared and the frequency increased. Here is a link to the pmset commands that I used. do not engage safe sleep unless the battery goes dead) using 'sudo pmset -a hibernatemode 3' the power is truly off) I turned the computer on and it started to resume from safe sleep and it was able to finish booting as it should, no beeping occurred and all was well.ġ) when resuming from safe sleep, computer would beep three times every five secondsĢ) I used 'sudo rm /private/var/vm/sleepimage' to delete the sleepimage fileģ) I used 'sudo pmset -a hibernatemode 1' to force safe sleep when I close the lid and/or choose sleep from the apple menuĤ) Booted from safe sleep and confirmed it was working as expected.ĥ) To go back to regular safe sleep mode (i.e. After putting it to sleep and making sure the LED in the front of the computer was NOT pulsing (i.e. By doing this I was able to force safe sleep to happen without waiting for the battery to be drained.
Where, setting hibernatemode to 1 tells your mac to always go into safe sleep. I learned a new terminal command to force the computer to always go into safe sleep. Now, I needed the Mac to go into 'safe sleep' which is challenging, because normally this would only happen if the battery was completely depleated. I decided to delete the file so that it would get re-created the next time the Mac was put to sleep. I had read that any time you put your mac to sleep the sleepimage file will get created, if it doesn't exist already. Because of the unique situation where the computer would start to resume just fine and then get the 3 tones, it seemed related to the safe sleep file (/private/var/vm/sleepimage).
I decided that instead of calling Apple back, I would try fixing this myself since it appeared to be a software issue not a hardware issue. The technician booted up the laptop using the special Apple network diagnostics and all of the hardware 'checked out' as just fine. It's on 4GB rather than 8 so it's not ideal but it works. YouTube this one was helpful but didn't end up working for me so I put only one of the RAM cards back in and it started working again. Simple Fix for: MacBook Beeping won't turn on. I called Apple to schedule a visit with my local Apple authorized technician, in Redding, CA). I just had this problem and looked up videos to help. I proceeded to re-seat the RAM and run a RAM diagnostics test ('rember' from Kelley Computing, ), the test passed. During that time the front LED would flash at the same pattern.īecause I had replaced the RAM (came with 4, wanted 8, but didn't want to pay the Apple price, so instead I bought from - they are amazing) I had suspected that maybe the RAM was bad or that it wasn't seated properly. the battery went completely dead while the computer was asleep, causing it to resume from the sleep image file when power was plugged in) when I would bring it out of safe sleep it would make it 50% through the resume process and then I would get 3 tones/beeps separated by about 5 seconds and then repeating the same sequence. I ran into an issue with my wife's MacBook Pro (Early 2011, 2.0 i7) where anytime it would go into safe sleep (i.e.