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[Solved] ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions?

ayjay_ghale 20202 12
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  • #1 17323347
    ayjay_ghale
    Level 8  
    Posts: 14
    Rate: 3
    ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions?
    Hello, I have a big problem with the new SSD (ADATA SU800 256GB). After connecting it to the computer in the windows installer and in the disk manager itself, it shows the capacity of 1023mb. The disk cannot be damaged because I could install the system on it when I plugged it into my laptop. In the laptop, he sees the disk correctly and everything is fine. I checked various sata ports and various cables. I will add that at the very beginning, when I got this disk and I had the same problem, I sent it back for warranty. However, the problem wasn't with the hard drive but with my computer. Has anyone had a similar problem?


    Motherboard: Gigabyte GA-B250M-D3H
    Processor: Intel Core i7-7700K
    SSD: ADATA SU800 256GB
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  • #3 17323729
    ayjay_ghale
    Level 8  
    Posts: 14
    Rate: 3
    Only I don't have any partitions on this disk. As I assign this 1gb, it does not even show me that there is any.

    And could you please tell me more precisely what to do in this program?

    Added after 3 [minutes]:

    ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions? ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions?

    Added after 31 [seconds]:

    This short one is my hdd. and this pour of zeros is ssd
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    #4 17323744
    RADU23
    VIP Meritorious for electroda.pl
    Posts: 20712
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    ayjay_ghale wrote:
    Only I don't have any partitions on this disk.

    Are you sure?
    ayjay_ghale wrote:
    The disk cannot be damaged because I could install the system on it when I plugged it into my laptop. In the laptop, he sees the disk correctly and everything is fine.


    ayjay_ghale wrote:
    And could you please tell me more precisely what to do in this program?

    I wrote exactly. Connect the disk and insert the DMDE screen with "current partitioning".
    It's supposed to look like this => ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions?
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  • #5 17323749
    ayjay_ghale
    Level 8  
    Posts: 14
    Rate: 3
    ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions?

    Here you are. This disk, when connected to paw, boots to Windows, and here it has 1Gb.

    Added after 1 [minutes]:

    Should I still plug it into my laptop and take a dump there?
  • Helpful post
    #6 17324954
    WojtasJD
    Level 43  
    Posts: 13764
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    Your SSD reports itself as SM2258AB-10-00831000 F / W: 20141211 ~ 1.0 GB
    and should: ADATA SU800 F / W: ...... 256 GB

    Upload its SMART from CrystalDiskInfo on this CD (it will probably be 'empty') and then from your laptop.

    Lastly: update the motherboard's BIOS first
    http://www.gigabyte.pl/products/page/mb/ga-b250m-d3h#support-dl

    then the SSD firmware:
    http://www.adata.com/en/download/410
    (updated to Q0922FS, I think it deletes data, so save it beforehand or make a disk image; you will need a USB flash drive for recording * .iso)
  • #7 17325174
    ayjay_ghale
    Level 8  
    Posts: 14
    Rate: 3
    ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions?


    It is on the laptop, it shows nothing on the PC. I have already updated the CD bios. I am about to update the drive's firmware.

    Added after 5 [minutes]:

    And a terribly strange thing happened. I connected this SSD without any update yet, but while the computer was on and now in CrystalDisk, it showed me the normal name, etc.

    Added after 3 [minutes]:

    ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions?

    And even Windows sees it correctly. What happened here?

    Added after 37 [minutes]:

    This happens when you try to update fw
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    • ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions? IMG_20180712_160654.jpg (1.48 MB) You must be logged in to download this attachment.
  • #8 17325260
    ayjay_ghale
    Level 8  
    Posts: 14
    Rate: 3
    I would like to add that when I plug in the disk while working, the system sees it and works normally. After rebooting, you can even start Windows from this ssd. But as I shut down my computer completely then it still can't see properly on restart
  • Helpful post
    #9 17325767
    Seba7225
    Level 9  
    Posts: 123
    Help: 2
    Rate: 11
    ayjay_ghale wrote:
    I would like to add that when I plug in the disk while working, the system sees it and works normally. After rebooting, you can even start Windows from this ssd. But as I shut down my computer completely then it still can't see properly on restart


    EDIT: You do not need to change the disk to GPT, because this applies to disks above 2.2TB, and if you would like to have a system installed on it, it is probably recommended to leave the MBR, but you can try to install GPT Loader you can, maybe you will also have missing disk space .

    I found the solution! :D from what I can see from the screenshots you are also using Windows 10, so it should work for you too.

    So yes: to be sure, convert the disk to GPT (enter disk management) and right-click the disk (not its space) and select "Convert to GPT disk".
    ADATA SU800 256GB SSD Showing 1023MB Capacity on Gigabyte GA-B250M-D3H Motherboard - Solutions?Bez naz...png (44.07 kB)You must be logged in to download this attachment.

    Once done, install GPT Loader

    Moderated By dt1:

    The attached file containing Paragon GPT Loader has been removed - this is not a free software, the attached version contained the serial number of the paid version. Please do not post such software on the Forum, it does not comply with its license.



    at the end of the installation it will ask you to restart your computer, you do it and you are done. At least in my case, it started to detect 2794.5GB instead of 746.5GB. But I still don't know what to do to create in my case one partition with the capacity of all this disk of mine: /
  • #10 17326658
    ayjay_ghale
    Level 8  
    Posts: 14
    Rate: 3
    It's not about the missing disk space. You correctly the system detects the disk, it does not want to detect mine. I can't install the system either, I formatted mbr / gpt. I have no information at CrystalDisk
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    #11 17326671
    Seba7225
    Level 9  
    Posts: 123
    Help: 2
    Rate: 11
    ayjay_ghale wrote:
    It's not about the missing disk space. You correctly the system detects the disk, it does not want to detect mine. I can't install the system either, I formatted mbr / gpt. I have no information at CrystalDisk


    Well, at the beginning it did not detect the disk correctly, as you can see, it initially detected only 746.5GB, not 3TB, as you have 1023MB instead of 256GB, and only after the installation GPT Loader started to detect me correctly. Well, I don't know, you can always try to install it, if it doesn't help, you uninstall it and that's it. I hope you can fix the problem, I have to deal with this partition now.
  • Helpful post
    #12 17327384
    WojtasJD
    Level 43  
    Posts: 13764
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    So how do you do HotPlug, it works, if the disc is to boot from this SSD, it's no consolation.

    Exactly which SATA ports on Gigabyte do you have HDD, SSD connected to; what SATA mode and is M.2 slot empty?

    WHAT to update the firmware, as in the instructions you have - the volume on the flash drive must have a label SMI_IMAGE Besides, the ADATA SU800 SSD is probably newer than the F / W R0126A available on the website.
    Updater supports updating from P0801A, P1021A, Q0106A, Q0125A, Q0518BS - no one knows what will happen :) in the worst case, it will not be detected.

    BTW: here you have a similar fault on the board with B250 and SSD with SM2258 (Mushkin Triactor 3DL 480GB)
    https://www.computerbase.de/forum/threads/asu...mit-mushkin-triactor-1gb-statt-480gb.1751193/

    ADATA SU800 512GB as SM2258AB-10-00821800 ~ 1.0 GB:
    https://pcpartpicker.com/forums/topic/270751-ssd-comes-up-in-bios-as-1-gb
  • #13 17328767
    ayjay_ghale
    Level 8  
    Posts: 14
    Rate: 3
    I didn't update fw because I had a bug. For pc and laptop. I checked every SATA port. The laptop continues to detect the disk without any problems and boot to windows. A friend will send me his mobo on Monday because he changes to a new one and I will see. Maybe on another I won't have a problem.

    EDIT
    I changed the record, put everything back together. I connected SSD and HDD, everything started fine, the bios detected the disks correctly.

    I turned off the computer to start a fresh installation of Windows, and here is such a mouse that again sees the disk on the previous disc. Now I'm dumb.

    ASRock Z270M Pro4 motherboard


    #EDIT

    On this board, when the SSD itself is connected, everything flashes a miracle honey. But if I have an additional hdd connected, everything goes to hell.

    EDIT
    I coped with the problem.

    I connected both drives. I connected the usb with the installer w10.
    I formatted the hdd via cmd in the installer. (SSD was still visible as sm-something)
    I turned everything off, unplugged the hdd. I launched the BIOS to make sure that the ssd is detected.
    I connected the hdd live. I restarted
    SSD took off to windows. I partitioned hdd in disk management.

    Maybe this problem will also occur to someone, so I think that my report will be useful :)

    Regards and thanks for your help.

    I merged. RADU23

Topic summary

✨ The discussion revolves around an issue with an ADATA SU800 256GB SSD that displays a capacity of only 1023MB when connected to a Gigabyte GA-B250M-D3H motherboard. The user confirmed the SSD functions correctly in a laptop, indicating it is not damaged. Various troubleshooting steps were suggested, including using DMDE to check partition layout, updating the motherboard BIOS, and updating the SSD firmware. The user experienced intermittent detection issues, where the SSD was recognized when connected while the system was running but not after a reboot. Solutions included converting the disk to GPT format and using a GPT Loader to resolve detection problems. Ultimately, the user found success by formatting the HDD during the Windows installation process, which allowed the SSD to be recognized correctly.
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FAQ

TL;DR: If your ADATA SU800 256GB shows 1023 MB, it may misidentify as "SM2258AB-10-00831000 ~ 1.0 GB"; update BIOS and SSD firmware, verify SATA ports, and test with only the SSD attached. [Elektroda, WojtasJD, post #17324954]

Why it matters: This FAQ helps PC builders fix SSDs that misreport capacity or identity on Intel 200‑series boards so they can restore full capacity and bootability.

Quick Facts

Why does my ADATA SU800 show only 1023 MB on a Gigabyte GA-B250M-D3H?

The SSD can misreport as an SM2258 factory image (~1 GB) instead of ADATA SU800. This points to a detection quirk between the controller and the board. Update the motherboard BIOS, then update the SSD firmware. Test the SSD alone on known-good SATA ports to confirm behavior. The helper identified the mis-ID string and recommended BIOS/firmware updates for this scenario. [Elektroda, WojtasJD, post #17324954]

Windows detects the SSD only when I hot-plug it. What does that indicate?

Hot-plug success with cold-boot failure suggests an initialization or enumeration issue at power-on. Verify SATA port order, boot priorities, and test with only the SSD connected. After confirming, reattach other drives and recheck. Enable per-port Hot Plug in BIOS if available, then power-cycle the system. This pattern was observed: live-plug worked, full shutdown broke detection. [Elektroda, ayjay_ghale, post #17325260]

Does switching to GPT fix a 256 GB SSD showing 1 GB?

No. GPT addresses the 2 TB MBR limit. A 256 GB SSD should show full size on either MBR or GPT. MBR supports up to 2 TB; beyond that, GPT is required. If your 256 GB SSD shows 1 GB, the cause is detection, not partitioning. Fix detection first, then choose MBR or GPT as needed. [Windows support for hard disks that are larger than 2 TB]

How do I update the ADATA SU800 firmware correctly?

Use ADATA’s bootable updater and a USB drive labeled exactly SMI_IMAGE. Quote: “The volume on the flash drive must have a label SMI_IMAGE.” Back up data first, as firmware updates can erase data. Boot from the USB and follow on-screen steps. Ensure the system BIOS is current before attempting the SSD update. [Elektroda, WojtasJD, post #17327384]

Which BIOS/UEFI checks should I perform on the GA-B250M-D3H?

Confirm which SATA ports your HDD and SSD use, and whether the M.2 slot is empty. Simplify the setup: disconnect other drives, then test only the SSD. After confirming stable detection, add drives back one at a time. Update the motherboard BIOS before deeper troubleshooting. These checks were called out by the forum expert. [Elektroda, WojtasJD, post #17327384]

How can I show the current partition map for diagnosis?

Use DMDE to display the disk’s partitioning view. Install DMDE, select the SSD, and capture the “current partitioning” screen. Share that screenshot for analysis. This helps distinguish detection issues from partition table problems. The tool was specifically requested for troubleshooting in the thread. [Elektroda, RADU23, post #17323707]

My SSD works alone but fails when an HDD is attached. How do I fix it?

This can be a boot order or metadata conflict. Try this 3-step How-To:
  1. Connect SSD and HDD; boot Windows installer; clean/format the HDD via CMD.
  2. Power down; unplug HDD; confirm SSD detection and boot.
  3. Hot-plug the HDD, reboot, then partition it in Windows. This sequence restored normal operation for the poster. [Elektroda, ayjay_ghale, post #17328767]

Could a bad cable or port cause the 1 GB reporting?

Always test with different SATA cables and motherboard ports to rule out signal issues. However, in the reported case, swapping cables and ports did not resolve the 1 GB symptom. That pointed back to firmware/BIOS or device enumeration. Still, start with cable and port isolation as a baseline step. [Elektroda, ayjay_ghale, post #17323347]

Is this a known SM2258 controller issue with B250 boards?

Yes, similar faults were noted on B250 boards with SM2258-based SSDs. Quote: “similar fault on the board with B250 and SSD with SM2258.” The mis-ID appears around ~1.0 GB, then normal after hot-plug. This supports a platform-controller interaction, not media failure. [Elektroda, WojtasJD, post #17327384]

Will the ADATA firmware update erase my data?

Plan as if it will. The helper warned that the SU800 updater can delete data during the process. Quote: “I think it deletes data, so save it beforehand.” Create a full backup or disk image first. Only then proceed with the firmware update steps. [Elektroda, WojtasJD, post #17324954]

What tools should I use to confirm the SSD’s identity and health?

Use CrystalDiskInfo to read the drive’s model, firmware revision, and SMART. Capture screenshots when the SSD appears correctly and when it misidentifies. Comparing both states helps pinpoint detection anomalies. The helper requested SMART from both the PC and a laptop for comparison. [Elektroda, WojtasJD, post #17324954]

Do I need Paragon GPT Loader for this problem?

No. GPT Loader targets the >2 TB capacity gap on MBR systems. Your 256 GB SSD should display full capacity without it. Focus on detection, BIOS, and SSD firmware first. Partitioning schemes won’t fix a misidentified 1 GB device. Reference: Microsoft’s guidance on the 2 TB MBR limit. [Windows support for hard disks that are larger than 2 TB]
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