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    CF-30 SATA 1.5 Link?

    Discussion in 'Panasonic' started by tomcatsniper, Nov 30, 2015.

  1. tomcatsniper

    tomcatsniper Notebook Geek

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    Hello,

    I cannot find anything related to the issue in the subject. If it is already covered please share the link.

    Issue is that smartctl in Linux reports the SATA Link at 1.5Gb/s instead of 3Gb/s.
    I saw the issue on CF30 mk1 and mk3. For mk1 I could understand it because it is old hardware but for mk3 should be 3Gb/s.
    SSD is OCZ Vertex 3 for mk3 and Intel 535 for mk1. The mk3 is running in native mode. For mk1 it cannot be set so I suppose it is in "compatible" mode.

    smartctl -a /dev/sda
    --cut--
    SATA Version is: SATA 3.0, 6.0 Gb/s (current: 1.5 Gb/s)
    --cut--

    Regards
     
    tomcatsniper, Nov 30, 2015
    #1
  2. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    Panasonic slows the SATA speed down.
    They do that for several reasons, some of which are heat and battery life
     
    Shawn, Nov 30, 2015
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  3. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    Shawn, Nov 30, 2015
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  4. tomcatsniper

    tomcatsniper Notebook Geek

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    tomcatsniper, Nov 30, 2015
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  5. tomcatsniper

    tomcatsniper Notebook Geek

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    I got it now. Seems fair from my point of view. I can reach 100MB/s so it's fine for me.

    I asked a friend to check his cf30 mk2 also running Linux and his mk2 shows this with a Samsung 840 EVO SSD:

    --cut--
    SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)
    --cut--

    Quite strange...

    BTW: In the bottom part in "Similar Threads" section I found also another thread with explanation for 1.5Gb/s link cap but I couldn't find it via search...

    http://forum.notebookreview.com/threads/cf-w8-sata-ii-1-5-gb-s-cap-possible-bios-mod.562377/

    Best regards
     
    tomcatsniper, Nov 30, 2015
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