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    Slow write speeds on any NVMe drive....except Samsung?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by mvalpreda, Jun 20, 2017.

  1. mvalpreda

    mvalpreda Notebook Evangelist

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    Dell Latitude 7370 - and I know I don't have all the PCIe lanes to take advantage of full speeds on the SSDs, but this is really odd. I have 4 different SSDs I have tried and they all yield very slow write speeds.....except a Samsung EVO 960.

    Results attached and get nearly the same for the following drives:
    Toshiba THNSN5512GPUK
    LITE-ON CX2-8B512-Q11
    SanDisk A400 SD9PN9U-512G-1012

    The only difference is the 3 SSDs are using the original/default Windows 10 driver, and the Samsung is using the Samsung NVMe 2.2 driver. Samsung write speeds are where I would expect them to be and give me a score on AS SSD over 3,000. With the Samsung drive, the machine boots faster, launches programs faster, etc.

    Is there a newer driver I should be using from Microsoft? Installing something from Intel?
     

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    mvalpreda, Jun 20, 2017
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  2. tilleroftheearth

    tilleroftheearth Wisdom listens quietly...

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    With the other SSD's that use the MS driver; turn off the Windows writeback buffer flushing option (make sure the box is checked) for the drive.

    Just make sure you know the risk for doing so; but the performance should be 'normal' again with this tip.

    Good luck.
     
    tilleroftheearth, Jun 20, 2017
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  3. mvalpreda

    mvalpreda Notebook Evangelist

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    Wow.....just a slight change in speed. Thanks so much!
     

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    mvalpreda, Jun 20, 2017
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    Vasudev and tilleroftheearth like this.