NVME issues for booting win 10


  1. Posts : 2
    Win 10
       #1

    NVME issues for booting win 10


    Hi,
    I was recently rebuilding my PC and decided to upgrade to a 2TB PCIE 4 NVME. I also Previously had a Samsung 960 PRO. I did a clean install from a USBC SSD.
    For some reason, I have to have my BIOS set to legacy in order to recognize and boot from the new NVME. How can I fix this?
    Many thanks!
    Nick
    WIN 1909 Build 18363.8115
    Asus Crosshair VIII Hero
    Corsair MP600 PCIe Gen 4 2TB
    AMD 3950X
    GSKILL 64GB DDR4 3600
      My Computer


  2. Posts : 516
    Windows 10 Professional 64bit
       #2

    Hi and Welcome!

    What other drives are connected to the PC? In addition, are you running the latest BIOS for the Asus motherboard?
      My Computer


  3. Posts : 5,899
    Win 11 Pro (x64) 22H2
       #3

    nickywaldo said:
    For some reason, I have to have my BIOS set to legacy in order to recognize and boot from the new NVME. How can I fix this?
    You shouldn't need to do that as booting from NVME drives is definitely supported under UEFI.

    When you installed the Samsung NVME drive did you also install the NVME driver from Samsung.

    BTW....

    BIOS Version 1201...
    Version 1201

    2019/12/0314.93 MBytes
    ROG CROSSHAIR VIII HERO BIOS 1201
    01. Fix a compatibility issue with the ASUS-ESTX II-0074 sound card
    02. Update TCGStorageSecurity Module to support TCG Pyrite 2.0 Devices.
    03. Fix some boot issues with NVME devices.
    04. Update auto-rules for CPU and Memory overclocking
    Before running the USB BIOS Flashback tool, please rename the BIOS file (C8H.CAP) using BIOSRenamer.
    If you've not done so, please follow Masterchiefxx17 advice by at least updating the BIOS to 1201. I'd personally update to 1302 as it will also include previous fixes.
      My Computers


  4. Posts : 2
    Win 10
    Thread Starter
       #4

    Here are the requested details


    Thanks for your replies!
    I am running 1302 Version of the BIOS
    I removed the Samsung NVMe and just installed the Corsair. When I did this, the system could not find a boot device unless I put the BIOS into legacy mode.

    I also have a 500GB SSD scratch drive and two 10GB HDDs in Stripe mode.

    I have attached the view from Disk management.

    Thanks for your advice

    - - - Updated - - -

    To clarify - If I have CSM turned off in BIOS, it doesn't even see the NVMe - is that correct operation? ie. should I have CSM enables or disabled for optimum performance?
    Attached Thumbnails Attached Thumbnails NVME issues for booting win 10-disk-management.jpg  
      My Computer


  5. Posts : 5,899
    Win 11 Pro (x64) 22H2
       #5

    With you moving between legacy and UEFI plus switching drives, and now messing with CSM, and on top of that having boot issues you may be complicating things and making things worse.

    With modern day systems I'd stay with UEFI (unless a specific need for legacy) and do a clean install of the OS. Also, in keeping things simple, I'd leave CSM at whatever default setting it was at. On my "Intel" Gigabyte board I have CSM disabled; but I'm also running Secure Boot, so CSM needs to be disabled for that.

    Anyway it seems like things have gotten out of hand so you may need to start fresh from the BIOS on to a clean install of the OS.

    BTW some will argue against UEFI, but with modern systems and the hardware and OS you have, there's no reason not to be running in UEFI. I don't know what your skill level is but simplicity is in UEFI or why get the hardware and board you did.

    Good luck.
      My Computers


  6. Posts : 1,045
    windows 10
       #6

    There are 2 m.2 slots on the motherboard, 1 and 2, try 1 if you haven't already. remove all hard drives (ssd usbc too) except the corsair. try a new installation of windows with a usb disk. all these tests in uefi mode

    - - - Updated - - -

    If in the bios the sata is on raid I would try with the ahci
      My Computer


 

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