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Modello fine 2011, A1278 / processore i5 2,4 GHz o i7 2,8 GHz

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MacBook three beeps and reboots

Hi, so I’ve recently had my MacBook to Apple as it was failing to boot. They informed me the hard drive was on its last legs.

I went home and ordered a new SSD and whilst I was at it, I ordered 2x8gb ram (DDR3L-1333) from crucial.

After restoring everything on my MacBook, it seemed to work really well for a few days running multiple programs etc. But now it’s crashing/freezing regularly then rebooting and getting quite hot. Then today it crashed and sounded the 3 beeps.

any advice at all?

thanks in advance!

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Hi @robdynamite

Three beeps means there’s something wrong with the RAM. Have you tried resetting the NVRAM? And if that doesn’t work you could try to reseat the RAM modules.

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I’ve just tried this and after 10 minutes of light use, it froze again and I had to shut it off. I’ve noticed it’s getting very hot in a short space of time.


I’ve since installed my original memory and it’s just restarting over and over again now.


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Rob sarà eternamente grato.
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