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La famille des Macbook a été introduite pour la première fois en mai 2006, pour remplacer la gamme portable d'Apple, les iBook.

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Beeping sound every 5 seconds, it won't turn on

Help ... anyone. My Mac Book won't turn on. It was literally working fine one day. I shut it down and the next time I went to turn it on, it wouldn't. I instead get a single beeping sound every 5 seconds. The LED on the front of the computer also blinks one time in sync with the beeping. Any advice?

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my I Mac beeps when I turn it on, i can't get it to boot up ,it is the Sierra operating ,system .does anyone have a solution

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Thank you so much, it was a RAM thing and the problem is fixed.

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I hаd a similar іѕѕuе when my Mac was consistently having this beeping sound.

Fіnаllу I mаnаgеd to resolve thе problem.

Follow thіѕ guide hеrе: https://bit.ly/3h5HWmV

This should be helpful

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It sounds like something's going on with your RAM. When the computer has a RAM issue (like the RAM's failed, or the computer can't detect it, or it can detect it but it's an incompatible type), hitting the power button causes one or more beeps, sometimes accompanied by a blinking sleeplight:

Intel-based Mac Power On Self Test RAM error codes

One beep = no RAM installed. Have you been playing arond with RAM recently, or has the computer gotten knocked around?

The first thing to try is to reseat the RAM correctly:

Installing MacBook Core 2 Duo RAM

The process for installing/removing RAM on the earlier A1181 Core Duo MacBook is identical. I like to use a pink pencil eraser to rub the RAM contacts clean of scuzz, and use a soft, dry toothbrush to brush the rubber crumbs off the RAM contacts and clean the inside of the RAM socket. Then reinstall, reassemble and reboot, and see if anything changes.

If that doesn't work, the next step is to replace the RAM - preferably with sticks that you've seen working in another computer, so you can be sure they're good.

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This post is a godsend. I had water damage from a jar spilling in my bag on my mid 2012 MacBook Pro. Nothing turned on. And when I tried to charge I got a dim orange light.

Took it to a repair shop that fixes logic boards using ultrasonic cleaning. They weren't able to turn it on, but when I got it back my laptop was charging with a bright green light and beeped every 7-8 seconds when I hit the power button. The sleep light also flashed in tandem with the beep.

I saw this post, but didn't know what to do with the info. Until tonight. My brother-in-law was able to recover the docs on my hard drive, but I was looking for one in particular that was open when the water damage happened. After looking for hours, he said it might be on the RAM.

Long story short, he had two 2GB RAM chips on hand and decided to swap mine out to see if it was a RAM issue and for the first time in 2 months, my laptop turned on. Moral of the story: If you're hearing beeps, check your RAM.

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If you're using 10.9 or later (is that right? Or was it 10.8?), and the MBP went to sleep before the spilling crisis, it would have saved the file to the disk in "preservation of state" mode. That way, when the computer wakes from sleep, it restores all open documents/applications in the state they were in when sleep started. The same thing happens if the battery dies; once you plug into AC and power it up again, the state at battery death is restored. Odds are, the document wasn't in the RAM any more; it was on the drive, but in that suspended-state mode where it wouldn't appear as a normal file if you pulled the drive and examined it as an external drive. The key point to recovering a saved-state document is to reboot from the drive/account where it exists; my guess is that you could have pulled the drive, attached it to another Mac, booted from the external drive, and recovered it that way. But this way, you solved your RAM issue *and* got back a functional computer.

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Omg my MacBook Pro has been off for a year and some change packed away. Hubby is using his hard drive stuff to recover all my files and I decided to give my laptop one more chance... Googled this about the beeping and hubby moved one memory stick see if the other was bad and sure enough one of my ram sticks were bad! It’s back on (with probably half of its memory right now) but it’s working like nothing was ever wrong!!! This is awesome!!! Gonna replace and I’m back in business - and I was about to give up on it completely!

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3 beeps no good banks.... what does this mean?

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From Apple's startup tone tech note, which I linked to above:

Three successive tones, then a five-second pause (repeating): RAM doesn't pass a data integrity check. If you recently replaced or upgraded your computer's RAM, check to see if it was installed properly. If the issue continues, contact Apple Support.

Three tones, one tone, however many tones - open the computer, remove the RAM, clean the RAM contacts (both on the memory sticks and in the sockets), reseat the RAM, restart the computer. If it's still beeping, one or both of the RAM sticks is probably bad. Try to start with each stick alone; whichever stick causes beeps is the bad one; replace it. If you still get beeps with each stick individually. then replace both sticks.

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If holding down the power button for longer than usual doesn't work, reset the PRAM.

At one time, resetting the PRAM was the most recommended option for restoring an Apple, but judging from the literature that doesn't seem to be the case now. Nevertheless, it is a procedure that still works.

Hold down the Command, Option, and R keys with your left hand, and press the P key and Power key with your right all at one time. You should hold it until you hear the start chime twice (though sometimes this doesn't happen) and give your computer a chance to reboot. It will take longer than normal because you are resetting the start-up settings to factory defaults.

If resetting the PRAM doesn't work you've got serious problems that require a service visit to your local Apple store especially if your skill set does not include hardware repair.

Having to resort to resetting the PRAM too many times indicates other problems, such as a need to replace your internal battery,

Good Luck,

Mac user since the 80's.

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Thank you so much starrynightastro ! This helped fix my recent problem.

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bang on! thanks for the tip - worked straight away.

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thank's man, you saved me

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thank you so much. My old macbook pro has been holding back the door for a year since this problem happened. Now my other computer died so I thought I'd have another go finding a solution. You've made my week !

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Anyone else not hear "2 chimes"?

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Where is the RAM in the mackbook ? My best friend is having the same problem but the laptop told her to restart it so she did and when she tried to power it on it started to beep 12 seconds apart and the white light button had the same rythm with the beeping she needs help with it, answers?

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Assuming you're talking about a white or black plastic MacBook, and not a MacBook Pro, the RAM replacement manual is here:

Installation de RAM dans le MacBook Core 2 Duo

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What MacBook do you have? The single beeping means the computer has failed the POST thanks to no RAM or no RAM being detected.

Faulty RAM would result in 3 beeps.

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I have a mini with this problem. I upgraded the RAM and when I tried to power it up, it just beeped every 5 seconds. I tried putting the old RAM back in, blowing out the socket thoroughly with compressed air, and reseating the RAM. What finally worked was only putting a stick of RAM in the top slot. As if the bottom slot has gone bad.

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That's happened to me. Just keep pressing the power button for a long time, and then let go, and press it down again. You are restarting it, but you just can't tell when it's shutting down since the screen is already black. I don't think it gets rid of the problem forever (it hasn't for me) but that's a way to get it to function normally.

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