MacBook keeps randomly freezing while trying to recover it

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MacBook keeps randomly freezing while trying to recover it

Yesterday I was using my Early 2011 Macbook Pro 13" while suddently it froze and made 3 beeps, 5 seconds pause and repeat. Since the hearing of that sound I turn it off and start investigate: check the if one of the RAMs where broken but nothing. When I reboot it the screen keeps frozing while loading the OS (High Sierra) so I decided to re-install it. I tryed different ways (Normal Recovery, Recovery via Internet, erasing the disk and reinstalling) but I always got stuck at some point because the computer is freezing.

The particular part is that is not always the same moment: once is while booting the recovery from Internet, next time is while it start re-installing the OS but I never get past the beginning of installation of High Sierra. I also did some diagnostic with the built in tool "Apple Diagnostic" (Cmd+D on boot) or the Utility Disk but it seems that everything is working fine.

Is there something that I can do to fix my problem?

MacBook specs:

MacBook Pro "Core i7" 2.7 13-Inch (Early 2011)
macOS High Sierra
2x4GB RAM
SSD 1TB
Intel HD Graphics 3000
Optical Drive

MacBook Pro 13″, macOS 10.13

Posted on Aug 25, 2022 6:16 AM

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Answer 1

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BDAqua

Level 10

250,259 points

Aug 25, 2022 6:23 AM in response to MatCom

As you likely know...

3 successive tones, a 5-second pause, 3 successive tones RAM does not pass data integrity check...

Standard RAM:4 GBMaximum RAM:16 GB*

Details:4 GB of RAM is installed as two 2 GB modules, no slots free.

*Apple officially supports a maximum of 8 GB of RAM, but as first confirmed by site sponsor OWC, this model actually is capable of using up to 16 GB of RAM with two 8 GB memory modules.

In the US (and many other countries), site sponsor Other World Computing sells memory -- as well as other upgrades -- for this MacBook Pro.

In the UK, site sponsor Flexx sells memory and other upgrades for this MacBook Pro.

In Germany, site sponsor CompuRAM sells memory and other upgrades for this MacBook Pro.

In France, site sponsor MacWay sells memory and other upgrades for this MacBook Pro.

In Australia, site sponsor Macfixit sells memory and other upgrades for this MacBook Pro.

MacBook Pro 13-Inch "Core i7" 2.7 Early 2011 Specs (Early 2011 13", MC724LL/A, MacBookPro8,1, A1278, 2419*): EveryMac.com

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MacBook keeps randomly freezing while trying to recover it

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