HaroldFinch

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HaroldFinch

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May 12th, 2019 07:00

Dell BIOS versus Samsung NVM Express Driver and Magician--PLEASE ADVISE

I have a newish Dell Precision 7530 laptop.  I immediately replaced the crappy Dell shipped drive with a Samsung 970 EVO 2 TB SSD.  (How I wish that Dell would let you order branded SSDs, like you can with graphics cards...)

I did subsequent configuration to this laptop, starting with some BIOS tweaking (e.g. Fastboot changed from Minimal to Thorough), then full disk encryption using BitLocker (e.g. hardware encryption disabled, Secure Boot enabled), etc.

I recently decided to install Samsung Magician, since that is the manufacturer's tool for monitoring this SSD, updating its firmware, etc.  Magician installed, but failed to recognize my SSD!

Web searching found that:
    1) you likely need to change the Dell BIOS SATA Operation from its default of RAID On to AHCI
    2) you likely need to install the Samsung NVM Express Driver
For example, see the response by uservvjy8cNyuq on 09-24-2018 12:24 PM here.

So, I first tried changing my Dell BIOS SATA Operation from its default of RAID On to AHCI.  That caused my laptop to become unbootable!  Web searching found this Dell Community link.

That lead me to all kinds of interesting discussions on this website.  I am now aware that:
    The FAQ has a lot of detail
    Dell usually has the BIOS SATA Operation default setting of RAID On instead of AHCI
    Dell has that default for maximum compatibility (unless you are running Linux)
    You can change from RAID On to AHCI even after Windows has been installed, its just a little tricky

I am fully comfortable doing the steps in the last link to modify my BIOS to be AHCI.

That said, I want your advice if there are any dangers in doing this BIOS change.

For example, would this BIOS change to AHCI cause any problems with my existing BitLocker confirguation (hardware encryption disabled, Secure Boot enabled)?

Another example, could a Window 10 update fail?  (For example, this posting claims "...there were issues with the 970 and windows 1809 Oct 18  upgrade that Samsung had fixed with a firmware update")

Similarly, could a BIOS update be problematic?

  • JimiScott

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    Posted May 13th, 2019 10:00

    All good running in AHCI mode...I have the same setup as you. Ensure that you have the latest Samsung NVMe drivers....there was an issue where if you had multiple Samsung drives with the Samsung drivers resume from sleep would give a blue screen.
  • HaroldFinch

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    Posted May 15th, 2019 16:00

    JimiScott: thanks much for the feedback!

     

    One other thing that I forgot to mention.  My old desktop has a 2 TB SATA SSD that I want to try to transfer into my new Dell Precision 7530 laptop.  (Assuming that it will physically fit: I have the 6 cell battery, this may be an issue...)

     

    You say that changing the BIOS's SATA Operation from RAID On to AHCI causes no problems with just a Samsung PCIe NVMe SSD present.  Great.  But if that 2 TB SATA SSD is also present, will AHCI mode stil be OK?

  • HaroldFinch

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    Posted May 20th, 2019 22:00

    Just wanted to state that I went ahead and changed my BIOS SATA Operation mode from RAID on to AHCI just now, as per the instructions by Saltgrass.

    That change let me install Samsung's NVM Express Driver.

    After a restart, Samsung Magician now sees the SSD.

    So far, all seems well, except that Crystal Disk Mark benchmarks of my Samsung 970 EVO seem to indicate some slight performance regressions...

  • vikalpgarg

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    Posted September 17th, 2020 10:00

    https://www.youtube.com/watch?v=9ngnIKqPOc4 This video will help you. I faced the same issue recently.

    Go back to RAID mode and then follow the instructions given in the video.