Adding m.2 made former SSD disappear


  1. Posts : 2
    Win 10 64 bit /Fin
       #1

    Adding m.2 made former SSD disappear


    Hello,

    I installed new Kingston m.2 4TB hard drive to my computer. I turned it on and noticed that the other SSD named D: was missing. I clicked the Manage from my computer and checked the drives. I could not find the 1TB D: from there either! The computer detected the new 4TB m.2 though. I made the new m.2 active and gave it a letter E: which was not used yet.

    I checked that the 1TB SSD is connected to power supply and to motherboard. It is a storage drive, not the one windows 10 is installed to. What could have gone wrong?

    I run win10 64bit (FIN) which is bought from local store.
      My Computer


  2. Posts : 8,119
    windows 10
       #2

    Welcome to the forum you need to check motherboard manual in a lot of cases depending on what mode you set the drive to it kills some other ports as it uses these ports for speed it's different to each board so you need to check
      My Computer


  3. Posts : 6,377
    Windows 11 Pro - Windows 7 HP - Lubuntu
       #3

    Welcome to the Forums

    Please edit your profile with ALL your hardware specs. It will help us to help you
    System Specs - Fill in at Ten Forums

    As Samuria said, some MB share the M.2 port with a SATA port. If you use one you can't use the other.

    Please post a whole window Disk Manager image of ALL your drives. Don't forget to expand the columns so we can read them. How to Post a Screenshot of Disk Management
    If you have a MiniTool or AOMEI Partition use it instead or Windows disk manager.
    Last edited by Megahertz; 29 May 2023 at 07:43.
      My Computers


  4. Posts : 2,193
    Windows 10 Pro 64-bit v22H2
       #4

    MSI has several Z390 motherboards. You need to specify which one you have in "My Computers".

    Is the missing drive on a SATA port? On many motherboards using m.2 drives disables certain SATA ports. If that is your problem then the solutions is to moved the SATA drive to a port that is not disabled.
      My Computers


  5. Posts : 2
    Win 10 64 bit /Fin
    Thread Starter
       #5

    Hello, thanks for the answers. Multiple sources (this site included) gave me same answer and it turned out that the culprit was m.2 reserving two SATA ports. Switching to other SATA port made the SSD appear again. Thank you.
      My Computer


  6. Posts : 2,193
    Windows 10 Pro 64-bit v22H2
       #6

    Muumiperuna said:
    Hello, thanks for the answers. Multiple sources (this site included) gave me same answer and it turned out that the culprit was m.2 reserving two SATA ports. Switching to other SATA port made the SSD appear again. Thank you.
    I know that we all resist reading the user manual unless we are forced to. Even then we usually don't understand what is in it. However, the answer to your question was probably somewhere in it. For example, here is a screenshot of a page in the manual for one of MSI's Z390 motherboards. It shows which SATA ports are disabled when M.2 drives are used.

    Adding m.2 made former SSD disappear-2023-05-29-04_25_52-7b18v1.0-g52-7b181x1-mag-z390-tomahawk-.pdf-adobe-acrobat-reader-32-bit-.jpg
      My Computers


 

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