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macbookpro18,1 failure

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  • macbookpro18,1 failure

    I have a 2018 macbook pro retina 2.4Ghz with 32Gb. I haven't had any trouble with it. My SO bought a imac 27" which I'm going to upgrade the ram in, so I thought I'd figure out how to run memtest86. When I run it on my macbookpro, I get the attached log, showing a number of failures on test 10 (bit fade test). The failures are all in low memory. I also had to blacklist MP or it would freeze after 14 seconds in test 0. I attached the log of the failure, not the freeze.

    Should I worry about this? It only seems to affect the first 4k.

    BTW, to get it to boot, 2 settings need to be changed in the Startup Options accessible from Cmd-C during boot, allow external device and allow unsigned module. I can provide more detail on that if desired.
    Attached Files

  • #2
    it looks to be the same issues as these posts
    https://www.passmark.com/forum/memte...014-27-5k-imac
    https://www.passmark.com/forum/memte...e-2013-27-imac
    https://www.passmark.com/forum/memte...ure-on-test-10

    Particular Mac UEFI boot ROMS have bugs in them. See above.posts.
    We reported the issue to Apple, but they never replied. Seems they don't care.

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    • #3
      Thanks! You're completely correct. Just to make this easier to find, this was on a 2018 Macbook Pro:
      Model Name: MacBook Pro
      Model Identifier: MacBookPro15,1
      Processor Name: Intel Core i7
      Processor Speed: 2.6 GHz
      Number of Processors: 1
      Total Number of Cores: 6
      L2 Cache (per Core): 256 KB
      L3 Cache: 9 MB
      Memory: 32 GB
      Boot ROM Version: 15.16.6805.0.0,0

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