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  1. #1
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    WD Caviar Green (6Gbps) connecting at 3Gbps. Why?

    Hi all,

    I have an ASRock Z87 Extreme 4-M M/B with a SSD as primary connected at 6Gbps but my new WD Caviar Green 3Tb WD30 EZRX is only connecting at 3Gbps in windows. when I check the bios it states it is conected at SATA 3_2 at 6Gbps, but when I use the ASRock A tuning software it tells me my speed is Gen 2 3Gbps. Any suggestions?

  2. #2
    Super Moderator satrow's Avatar
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    Welcome to the Lounge, Paul.

    There's no way a HDD could saturate a 3Gbps connection, ignore it

    It might be connected to a 6Gbps controller but the throughput will be well inside that of a 3Gbps connection.

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    Paul Meehan (2013-11-02)

  4. #3
    Super Moderator CLiNT's Avatar
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    when I check the bios it states it is conected at SATA 3_2 at 6Gbps, but when I use the ASRock A tuning software it tells me my speed is Gen 2 3Gbps
    BIOS is most likely reporting the rated controller's speed, not the actual, which like satrow says, will be considerably slower, especially for a high capacity mechanical drive.

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    Paul Meehan (2013-11-03)

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