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  1.    1 Week Ago #70
    Join Date : Oct 2013
    Posts : 15,578
    64-bit Windows 10 Pro build 14951

    If you have Windows installed on a SSD, then it probably won't be worth enabling.

    If you think you could spare the RAM that it'll allocate, it won't hurt to try and see if you notice any performance difference with it enabled.

    If you don't notice any difference, then you could just disable it again to free up the RAM.
      My System SpecsSystem Spec

  2.    6 Days Ago #71
    Join Date : Oct 2016
    Posts : 1
    Win 10 x64

    Just registered here to mention the same bug/error. Purchased a 850 Evo just two days back and when I first installed the Magician app from the given CD in the box there was no AHCI error, but Rapid Mode was not clickable, then found the latest 4.9.7 on Samsung's website, then Rapid Mode was clickable but AHCI shows as deactivated.

      My System SpecsSystem Spec

  3.    5 Days Ago #72
    Join Date : Jan 2015
    Posts : 6

    If you cannot boot after the change, CHECK you BOOT DRIVE settings in BIOS. My normal boot drive changed after I changed to AHCI so I had to change it back and it then worked.
      My System SpecsSystem Spec

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