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USB 3 Flash Drive... Could It Be Faulty ?

  1. #1


    Posts : 562
    W10 x64 pro and W8.1 x86

    USB 3 Flash Drive... Could It Be Faulty ?


    I recently acquired a Sandisk 32gb 'Ultra Fit' flash drive which is one of the small nano styled devices and I'm not really happy with its performance. Its the first USB3 flash drive I've used although I do use a normal USB 3 portable HDD for archiving files.

    What I find is this,

    1/ It runs pretty hot even when in a fresh formatted state and idle.

    2/ It seems to cause the PC to work harder in the above state with the fan running a lot of the time. Unplug the drive and it stops.

    3/ File transfer speed is good at around 30+mbs.

    4/ I tried to copy a single 13.5gb Acronis backup file to the flash drive and Windows reports that there is insufficient space !!! This is with the drive formatted and showing 32gb free.

    The drive was bought from a very well known high street retailer and I've no real doubts on it being fake or anything like that. It was all packaged absolutely as you would expect.

    What do you think ? Would you expect an idle drive to run hot and is there any reason the 13.5gb file would not transfer.

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  2. #2


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    What is the format ? ExFat ? NTFS ? FAT32 ? It sounds like the disk is formatted with FAT32 then it won't take a large file > 4 GB
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  3. #3


    Posts : 562
    W10 x64 pro and W8.1 x86


    Good question. Yes, its formatted using its defaults which I think are FAT32. Thanks , I should have twigged that one.

    Would you expect it to run hot when idle though ? or is that normal for a USB 3 flash drive.
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  4. #4


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    For flash drive. You can either format with NTFS or ExFat. However, NTFS on flash memory has been known to be inefficient for quite some time. exFAT’s smaller footprint/overhead.
      My System SpecsSystem Spec

  5. #5


    Posts : 562
    W10 x64 pro and W8.1 x86


    Thanks topgun, I've formatted it to exFat and that works OK file wise. Thanks
      My System SpecsSystem Spec

  6. #6


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    Quote Originally Posted by Mooly View Post
    Thanks topgun, I've formatted it to exFat and that works OK file wise. Thanks
    You're welcome.
      My System SpecsSystem Spec

USB 3 Flash Drive... Could It Be Faulty ?
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