Unkow CODE 4mem/9/40000000: 0x82b9e098

4mem/9/40000000: 0x82b9e098


Hello dear MBP experts!! I have an interesting question just for the best !! I was running a diagnostic test on my MBP then as a sert I got this code !! Any one know what is this about exactly ? Then what is the possible solution if ?


i will really appreciate your support as usual


Thank you !

Posted on Mar 17, 2019 6:22 AM

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Posted on Mar 17, 2019 6:31 AM

It's a memory error. Be sure the RAM is properly seated in the slots. Pull one stick of Ram and test then replace and pull the other to isolate the RAM module that is bad. Replace the bad RAM with new RAM.

Macs are fussy about RAM. Both Crucial and OWC are reliable vendors with high quality RAM.

21 replies

Mar 17, 2019 9:40 AM in response to Kroller2019

That RAM is too fast for your MacBook Pro. You need the exact correct spec, not slower and not faster.


Readers who install RAM rated FASTER than the exact correct spec report that it is FLAKY in these Macs -- they see several unexplained crashes per week for no obvious reasons.


Given this, it is possible your results of Bad Battery are also suspect.

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Unkow CODE 4mem/9/40000000: 0x82b9e098

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