changed mbp ssd and the speed is slower than it should be

Discussion in 'MacBook Pro' started by fooad444, Oct 19, 2018.

  1. fooad444 macrumors newbie

    fooad444

    Joined:
    Oct 19, 2018
    #1

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  2. keysofanxiety macrumors G3

    keysofanxiety

    Joined:
    Nov 23, 2011
    #2
    The write speeds are about right but the read speeds are about half of what they should be.

    Have you enabled TRIM? Open Terminal, type sudo trimforce enable and hit Enter. It'll prompt you to enter your password. You won't see the characters when you type it in, so type it in blind and press Enter again, then restart your machine.

    Following that, maybe it's due to APFS. Which OS are you running please?
     
  3. Audit13 macrumors 601

    Audit13

    Joined:
    Apr 19, 2017
    Location:
    Toronto, Ontario, Canada
    #3
    Based on my experience using an Intel 600p in an early 2015 Air with the green Sintech, trim, APFS, and HFS didn't affect the read/write speeds.

    Re-seating the adapter, adding kapton tape to the green Sintech adapter, and ensuring the Air was running the latest bootrom did affect read/write speeds.
     
  4. Samuelsan2001 macrumors 604

    Joined:
    Oct 24, 2013
    #4
    Is it still spotlight indexing?? Give it a day or two to settle down and test again.
     
  5. fooad444 thread starter macrumors newbie

    fooad444

    Joined:
    Oct 19, 2018
    #5
    i am using mojave

    also the adapter came alone without the green piece

    this is time machine restore from backup not fresh install

    i will try the terminal thing

    also noticed that i worked on it with low job ( solving math homework so only safari was up ) and from and in 5 hours it drop from 100% to 5%

    maybe i should give it couple of days?
    --- Post Merged, Oct 19, 2018 ---
    another thing the ssd is x2 lane not x4 maybe tgis also affects?
     
  6. Audit13 macrumors 601

    Audit13

    Joined:
    Apr 19, 2017
    Location:
    Toronto, Ontario, Canada
    #6
    Under system report for nvme, is Link Width x2 or x4? It should be x4.

    Sintech made two small adapters: one is green, the other is black.
     
  7. fooad444 thread starter macrumors newbie

    fooad444

    Joined:
    Oct 19, 2018
    #7
    [​IMG]

    this is the photo from my nvmeexpress

    and I bought the the adapter alone like in the amazon link no back panel only black adapter
     

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6 October 19, 2018