How can an M2 undetected by the BIOS be detected by Windows 10?

Page 1 of 4 123 ... LastLast

  1. Posts : 13
    Windows 10
       #1

    How can an M2 undetected by the BIOS be detected by Windows 10?


    Hi
    I bought an Acer Nitro 5 (label enclosed). It came with a factory installed M2 and two additional free slots. I added a second M2 (label enclosed), and also an SSD.
    The SSD is detected by the BIOS but the M2 doesn't show in the BIOS (pic enclosed). Surprisingly, although it is undetected by the BIOS it still shows up in Win10 and works OK (screengrab enclosed).
    Would someone be able to explain this to me? I would assume that something that is not detected by the BIOS would also not be detected by the operating system. Also, why is it not detected by the BIOS?
    Thanks

    Note: Win 10 Pro 22H2
    Attached Thumbnails Attached Thumbnails How can an M2 undetected by the BIOS be detected by Windows 10?-02-win10.jpg   How can an M2 undetected by the BIOS be detected by Windows 10?-03-nitro-5-serial.jpg   How can an M2 undetected by the BIOS be detected by Windows 10?-04-m2-sticker.jpg   How can an M2 undetected by the BIOS be detected by Windows 10?-disk-management.jpg   How can an M2 undetected by the BIOS be detected by Windows 10?-01-biosa.jpg  

      My Computer


  2. Posts : 31,904
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       #2

    Lordubu said:
    ... I added a second M2 (label enclosed), and also an SSD.
    The SSD is detected by the BIOS but the M2 doesn't show in the BIOS (pic enclosed).
    Welcome to Ten Forums.

    I think it's the the other way round, it's SSD that's not showing. The model and serial number of the M2 in your photo is the same as the HDD2 in the bios screenshot.

    How can an M2 undetected by the BIOS be detected by Windows 10?-image.png
    How can an M2 undetected by the BIOS be detected by Windows 10?-image.png
      My Computers


  3. Posts : 1,253
    Windows 10
       #3

    Because the Bios only needs to know what your boot drive is at a bare minimum requirement.

    There is several areas that can effect the outcome you are describing and i cannot recall exactly but windows will use pnp to map devices and it can be down to how your device bus on the motherboard are read etc.

    There is lot of factors to it that can effect it just know that the bios only needs to know which drive to boot at minimum, if you have in the bottom right task bar the drive showing as ejectable then you know it got detected as a pnp device.
      My Computer


  4. Posts : 4,637
    several
       #4

    what is the make and model of the ssd ?

    the AN515-57 seems a recent machine , but that bios sceen looks ancient.
      My Computer


  5. Posts : 1,253
    Windows 10
       #5

    It will be UEFI still but they never made a fancy GUI for it. This can be common on OEM machines as it will most likely be down to time saving or money saving or both. Cutting corners where they can because time is money.
      My Computer


  6. Posts : 2,213
    Windows 11 Pro 64-bit v23H2
       #6

    To clarify things the OP's Acer Nitro 5 AN515-57 laptop has the following drives. The model of the 2.5-inch SSD is not given.
    #1: SK Hynix BC711 1TB M.2 NVMe SSD (model HFM001TD3JX016N)
    #2: Western Digital Blue 500GB M.2 SATA SSD (model WDS500G2B0B)
    #3: ??? 500GB 2.5-inch SATA SSD

    The OP's Acer Nitro 5 AN515-57 laptop supports three drives:

    How can an M2 undetected by the BIOS be detected by Windows 10?-acer-nitro-5-an515-57-drives.jpg
      My Computers


  7. Posts : 13
    Windows 10
    Thread Starter
       #7

    [QUOTE=Bree;2524597]Welcome to Ten Forums.

    I think it's the the other way round, it's SSD that's not showing. The model and serial number of the M2 in your photo is the same as the HDD2 in the bios screenshot.

    You have a keen eye. Indeed it is the SSD, and not the M2 that is undetected by the BIOS. Why did I believe it to be the M2? Well, for reasons that make this story even weirder! When I first entered Windows after I installed the M2 and the SSD only one additional disk was showing. I tested it with Crystal Disk Mark in an effort to find out if it was the SSD or the M2 and I got a writing speed of around 500 MB/s. I tested the system disk and I got a speed of around 3000 MB/s, so I assumed the recognised disk was the SSD. After I had finished these test a third disk suddenly appeared, so I assumed it was the M2.
    I have just tested the three disks and oddly both the M2 and the SSD have similar speeds, while the system disk that came with the Nitro is noticeably faster. This doesn't make much sense either, does it? The mystery thickens.
    Enclose please find the speed tests.

    - - - Updated - - -

    SIW2 said:
    what is the make and model of the ssd ?

    the AN515-57 seems a recent machine , but that bios sceen looks ancient.
    The BIOS looks extremely primitive yes. According to CPU-Z the motherboard is a Scala TLS, manufactured by TGL, and the BIOS' brand is Insyde Corp.
    This laptop was manufactured in 2022 though...
    Attached Thumbnails Attached Thumbnails How can an M2 undetected by the BIOS be detected by Windows 10?-three-tests.jpg  
      My Computer


  8. Posts : 23,491
    Win 10 Home ♦♦♦19045.4412 (x64) [22H2]
       #8

    @Lordubu


    According to the specs on Newegg.com and Amazon... that WD Blue M.2 SSD is supposed to be that speed...

    WD Blue 3D NAND 500GB Internal SSD - SATA III 6Gb/s SSD - Newegg.com

    Amazon.com


    When M.2 SSDs first came out they were that speed. Like the Samsung 840 EVO.



    Why it doesn't show in the BIOS? Who knows.
    BUT... IF it shows in Windows... you're... OK.



    Here, I fixed the picture. I couldn't stand it the way it was.

    How can an M2 undetected by the BIOS be detected by Windows 10?-image1.jpg
    Last edited by Ghot; 24 Mar 2023 at 05:56.
      My Computer


  9. Posts : 1,085
    windows 10
       #9

    Your m.2 that you bought is a sata m.2 at around 500 MB/s. If you want a non-sata m.2 which is called nvme, higher speed, you must first know if the m.2 port of your computer supports m.2 nvme.

    The m.2 ports, the second one for you, can only support m.2 sata or both types, m.2 sata and nvme like all other desktop and laptop. You have to dig into the manual, its web page and the web.

    It looks like your second m2 port supports m.2 nvme: Acer Nitro 5 AN515-57 upgrade ssd M2 — Acer Community

    Translate the page with Google translate here: Acer Nitro 5 AN515-57 upgrade ssd M2 — Acer Community

    With the translation there are no images, in the first link look at the images it is in English.

    You should buy this one wd sn570 3d nan m.2 nvme pcie 3.0 x4: amazon.es
    Last edited by itsme1; 24 Mar 2023 at 09:26.
      My Computer


  10. Posts : 6,410
    Windows 11 Pro - Windows 7 HP - Lubuntu
       #10



    Don't you have SATA ports listed under Main or Advanced tabs?
      My Computers


 

  Related Discussions
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 18:40.
Find Us




Windows 10 Forums