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    SD cards and Toughbook ?

    Discussion in 'Panasonic' started by cipiripi84, Mar 13, 2012.

  1. cipiripi84

    cipiripi84 Notebook Enthusiast

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    Thinking to buy SD card for my toughbook cf-19 mk2 but not sure which card is good and does toughbook supports 64 or 128 gb sd cards?
    What is your experience about sd cards?


    Thanks
     
    cipiripi84, Mar 13, 2012
    #1
  2. BaRRmaley

    BaRRmaley Notebook Deity

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    MK2 has SDHC reader - it's 32GB max.
    64GB> are SDXC

    P.S. Why do you need such a large SD card? :)
    It can't be used as normal SSD :)
     
    BaRRmaley, Mar 13, 2012
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  3. UNCNDL1

    UNCNDL1 Notebook Deity

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    Please quote your toughbook specs and coniguration for the community- will make it easyfor others to comment.... :)
     
    UNCNDL1, Mar 13, 2012
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  4. cipiripi84

    cipiripi84 Notebook Enthusiast

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    Computer Brand Name: CF-19FDGCXCM
    Operating System: Microsoft Windows 7 Ultimate Build 7601
    Service Pack: Service Pack 1
    Processor: Intel Core 2 Duo U7500 (1066.7 MHz)
    Motherboard: CF19-2 (Intel GM965 (Crestline-GM) + ICH8M)
    Memory: 4 GBytes (Dual-Channel)
    Hard Drive: Hitachi HTS545016B9SA00 (152,627 MBytes (160 GB))
    Display Adapter: Intel GM965/GML960 Chipset - Integrated Graphics 0 [C0] [Matsua Electronics]
    Audio Adapter: Intel 82801HB ICH8 - High Definition Audio [B1]
    Network Adapter: Intel 4965AG Wireless WiFi Adapter (MOW1)
    Marvell Yukon 88E8055 PCI-E Gigabit Ethernet Controller
    Monitor: Digital Flat Panel (1024x768)
    Battery: CF-VZSU48
     
    cipiripi84, Mar 13, 2012
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  5. cipiripi84

    cipiripi84 Notebook Enthusiast

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    Just want some extra space on my TB beside hd :)
    I guess then i will get 32 gb since mk2 can't read larger and newer cards.

    Thanks for clearing this out for me :)
     
    cipiripi84, Mar 13, 2012
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  6. Zakalwe

    Zakalwe Notebook Consultant

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    Interesting question, since sometimes SDHC readers can handle SDXC cards (the common trick is to format the card to FAT32 instead of exFAT), even though manufacturers usually do not support or recommend this. But I happen to have a CF-19 Mk2 and a Lexar 128GB card, and unfortunately I can confirm that this combination does not work. Funny, before this thread it never crossed my mind to test this. :)
     
    Zakalwe, Mar 14, 2012
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  7. toughasnails

    toughasnails Toughbook Moderator Moderator

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    toughasnails, Mar 14, 2012
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  8. vadaszi

    vadaszi Newbie

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    This wikipedia article might help:
    Secure Digital - Wikipedia, the free encyclopedia

    It suggests that sdxc should work fine with sdhc readers, except that the higher sdxc transfer rates are unavailable.

    Microsoft also provides exFAT support for WindowsXP:
    Download: Update for Windows XP (KB955704) - Microsoft Download Center - Download Details

    The only possible problem when using FAT32 or any other filesystem on sdxccards instead of exFAT, is that the wear leveling algorithm might be specifically optimized for exFAT, thus reducing transfer speeds and/or lifetime of the card.
     
    vadaszi, Mar 14, 2012
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  9. Zakalwe

    Zakalwe Notebook Consultant

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    The SDHC reader still needs to support capacities beyond 32GB in order to make full use of larger SDXC cards. Unfortunately the reader in the CF-19 Mk2 cannot do this. It can only format the card to about 32GB and then it only sees this capacity.

    I notice no problem with the 128GB card when using an SDXC-reader plugged into the USB port of the CF-19. But format it to 128GB there and then put the card into the builtin reader, and you will get an error message about a broken file system.

    This might be something that Panasonic could fix with a driver or firmware upgrade, but I doubt it will happen.
     
    Zakalwe, Mar 14, 2012
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  10. vadaszi

    vadaszi Newbie

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    vadaszi, Mar 14, 2012
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  11. Zakalwe

    Zakalwe Notebook Consultant

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    No, my CF-19 is still on XP (SP3). But I really don't think this is an OS problem in this case anyway, because as I said, when using a USB-based reader it has no problem utilizing the full 128GB. It is only the builtin reader that cannot do it.
     
    Zakalwe, Mar 14, 2012
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  12. vwhed1979

    vwhed1979 Notebook Enthusiast

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    Built in reader is very slow. I did testing and was only getting a few MB/s from the built in reader. I ended up using a micro SD usb adapter from ebay. It fits in the side USB reader and can still close the door. If you want speed, maybe try a pcmcia reader for full size SD. I was using class 10 cards, which should be 10MB/s on the internal reader, and it was slow. Make sure you check the card speed on what you buy, if it matters.
     
    vwhed1979, Mar 14, 2012
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  13. toughasnails

    toughasnails Toughbook Moderator Moderator

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    Stick with the name brand and USA sellers too, I found that a lot of the china / hong kong ones coming from overseas sellers are cheap knock offs that are very slow .
     
    toughasnails, Mar 15, 2012
    #13