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    SD card reader extremely slow

    Discussion in 'Samsung' started by Sir Punk, Aug 2, 2012.

  1. Sir Punk

    Sir Punk Notebook Deity

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    The card reader on my S3 is very slooooooooow. It goes at less than 2mb/s. My as card is a san disk extreme III 8GB, one of the fastest out there, so that's not the issue. I have updated the chipset and HECI drivers from the samsung website. Nothing else is running on the laptop. Do I have to change some settings under device manager?

    Any help is appreciated.
     
    Sir Punk, Aug 2, 2012
    #1
  2. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Transfers can be very slow for small files. In Device Manager go to the properties of the SD reader (if like my Series 9 then it is a Generic USB Storage device) and change from Optimize for Quick Removal to Optimize for Best Performance. Windows will then keep pushing the data through without waiting for confirmation that each file has been safely written before sending the next one.

    John
     
    John Ratsey, Aug 2, 2012
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  3. Sir Punk

    Sir Punk Notebook Deity

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    thanks John for the input. However this is unrelated to small files, as I tried transfering a 1GB single file and I get this kind of speed. Under device manager I don't see that option in any of the items under USB group. When I insert the card I see mass storage device but there aren't any options.

     
    Sir Punk, Aug 2, 2012
    #3
  4. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    On my X4C the SD card reader appears under Disk Drives (when a card is inserted). However, your reader hardware may be different. I would also note that the reader in my X4C is slower than a Sandisk SD - USB adapter that is two or 3 years old. If Samsung went that cheap on the Series 9 then I'm fearful of what they put in the Series 3.

    John
     
    John Ratsey, Aug 2, 2012
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  5. Sir Punk

    Sir Punk Notebook Deity

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    thanks John, I did find it and changed it but does not make a difference for big files. It might make a difference as you said on a bunch of small files. I was under the impression that internal card readers should perform much better, I guess I was wrong. Isn't the card reader directly connected to the cpu BUS?
     
    Sir Punk, Aug 2, 2012
    #5
  6. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    If your reader is reported as a USB device then it is through the USB hub. I don't know if this is a cost saving measure or something more subtle such the USB hub being able to turn off the power to unused hardware. Nonetheless, USB 2.0 devices can shift data a lot faster than 2 MB/s. Another possible issue that that your reader and the card doesn't play together well. I sometimes encounter such issues.

    John
     
    John Ratsey, Aug 2, 2012
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  7. xenidus

    xenidus Newbie

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    Hi John, I'm in the exact same boat with my 900x4c. I've used three different cards (All sandisk, one a class 10 and two class 4's (30MB and 15MB transfer speeds respectively)) and the transfer maxes at 1.78 MB/second. Sort of disappointing for a brand new laptop -.- .

    John have you tested your lappy if you have a series 9? I'm just curious if it is our machines or just the crappy card reader in our computers.

    -Dave
     
    xenidus, Dec 5, 2012
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  8. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    See post #4.

    John
     
    John Ratsey, Dec 5, 2012
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  9. xenidus

    xenidus Newbie

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    Gotcha, I assume you are running at a similar low speed then. Ah well -.- I guess a little waiting never hurt anyone.
     
    xenidus, Dec 5, 2012
    #9