Samsung 970 EVO slowing down


  1. Posts : 225
    Windows 10
       #1

    Samsung 970 EVO slowing down


    When I first installed my 970 EVO, I was getting 3200 Mb/s in Crystaldiskmark. Now it's 1700Mb/s.
    Any ideas why that might be?
    Thanks.
    Windows 10 20H2
      My Computer

  2. Railtech's Avatar
    Posts : 472
    Win 10 Pro x64 versions
       #2

    Could be any number of things. I had a customer recently whom complained of such issues, turned out they have a recycle bin with over 16,000 files taking up a large portion of drive space. Deleting that data fixed the issue.

    More commonly it is a problem with drive optimization. Run the PS command below to trim the drive and see if that helps

    Optimize-Volume -DriveLetter YourDriveLetter -ReTrim -Verbose. Replace YourDriveLetter with C: if C is the letter used for this drive.
      My Computer

  3. sygnus21's Avatar
    Posts : 5,477
    Win 10 Pro (x64) 20H2 (19042.928)
       #3

    imacken said:
    When I first installed my 970 EVO, I was getting 3200 Mb/s in Crystaldiskmark. Now it's 1700Mb/s.
    Any ideas why that might be?
    How full is the drive? I've made it a habit over the years to keep my drives at less than 70 percent full.
      My Computers


  4. Posts : 225
    Windows 10
    Thread Starter
       #4

    Thanks guys, I appreciate it.
    The drive has only 120Gb of data on a 500Gb drive. And, unfortunately the trim command made no difference. Still stuck on 1700.

    - - - Updated - - -

    Ok, so I’ve resolved the issue, but....
    When I installed my 3090, I have connected one of my SSDs into a SATA socket that disables nvme x4 if used! If I disable that SATA port, my nvme drive goes up to 3600 in the CDM benchmark.
    However, I am not able to change the port of the SSD drive in the affected socket as the 3090 is covering the SATA port and I just can’t see how to get the 3090 out!
    I’d anyone had a useful suggestion on that, I’d appreciate it.

    - - - Updated - - -

    OK, I got the GPU card out, changed the SATA port for the affected drive, changed the BIOS setting to x4 on the nvme drive and now all is good again!
      My Computer


 

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