Level 1

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what is the meaning of apple hardware test error 4MEM/9/40000000: 0x82bbb818 on my 2011 early, macbook pro 13inch?

what is the meaning of apple hardware test error 4MEM/9/40000000: 0x82bbb818 on my 2011 early, macbook pro 13inch.

MacBook Pro

Posted on Sep 23, 2019 2:18 AM

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3 replies

Level 9

51,084 points

Sep 23, 2019 3:13 AM in response to AchiuPH

Hi,

It's a memory error, try to test memory with memory test utilities such as Ramber or memtest.

I recommend to replace memory sticks. Your memory is DDR3 1333MHz SO-DIMM, you can upgrade till 16GB(8GBX2).

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Level 1

8 points

Sep 23, 2019 3:43 AM in response to kaz-k

Thank you kaz-k for your recommendation. I am running rember right now, will see whats the result and i am preparing to test with memtest as well. It already has 16G installed, so best to find out which one is the trouble one or both. Is it possible to change only one 8G memory instead both?

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Level 9

51,084 points

Sep 23, 2019 3:46 AM in response to AchiuPH

Hi,

Yes, you can replace one 8GB memory stick.

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what is the meaning of apple hardware test error 4MEM/9/40000000: 0x82bbb818 on my 2011 early, macbook pro 13inch?

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