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    Dell XPS 15 - Cannot change to AHCI mode. Help!

    Discussion in 'Dell XPS and Studio XPS' started by awaisuk, Feb 18, 2019.

  1. awaisuk

    awaisuk Notebook Deity

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    Hi,

    I am trying to change my Dell XPS 15 9550 mode from RAID to AHCI, but I am having no luck.

    I have followed the instructions about booting in safe mode after changing the mode here: http://forum.notebookreview.com/threads/trying-ahci-mode-xps-15-9550.785081/

    But the computer does not boot into safemode, and get stuck on the Dell Logo, and I always have to change the mode back to RAID in order to boot into windows again.

    I am changing the mode to AHCI, because I want to update the drivers for my PM951 NVMe drive.
    I only have 1 drive in my laptop.
    I am having some BSOD issues, and upon searching it was suggested to update the drivers. But I need to be on AHCI in order to update driver.

    Any help?
     
    awaisuk, Feb 18, 2019
    #1
  2. Schmoo2k

    Schmoo2k Notebook Consultant

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    Are you able to reboot into safe mode without modifying the BIOS settings during the reboot?
     
    Schmoo2k, Feb 18, 2019
    #2
  3. awaisuk

    awaisuk Notebook Deity

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    Yes I can boot into safe mode when its set to RAID. But not when I set it to AHCI
     
    awaisuk, Feb 18, 2019
    #3