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SATA3 SSD running at SATA2?

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  • 12-05-2012 1:52pm
    #1
    Kevinf63
    Registered Users Posts: 169 ✭✭


    Bought a OCZ Agility 3 256GB SATA3 SSD about a month and a half ago and soon after buying it I realized my read/write speeds were not up to scratch. I think it may be running in SATA 2 instead of SATA 3, as seen in the screenshot taken in the attached images, it seems to be restricted to a maximum of 250MB even though its marked to run at a max of 550MB/s.

    Also, HD Tune shows what looks like spikes of speeds up to 350 MB/s when testing for only a second or two and then lowering back down to the 200MB range. If it helps for troubleshooting, I also have a SATA 2 500GB internal hard drive running alongside this. Maybe I haven't set it up correctly.

    My spec is in the signature below except I have now updated my PSU to a XFX PRO 850W model. Thanks in advance! :o
    Tagged:


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    #2
    oisin
    Registered Users Posts: 239 ✭✭oisin


    Are you booting in AHCI or IDE mode? You may have a problem booting if you change the setting in the BIOS if you've installed your OS in IDE mode. If you have, Google "Enabling AHCI mode AFTER Windows 7 Installation" there are fixes for this around (assuming your running Win7).


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    #3
    deconduo
    Moderators, Computer Games Moderators Posts: 4,281 Mod ✭✭✭✭deconduo


    -Make sure its AHCI mode.
    -Did you connected to at SATA3 port?
    -Check to see if you have the latest SATA drivers here.


  • Options
    #4
    Kevinf63
    Registered Users Posts: 169 ✭✭Kevinf63


    oisin wrote: »
    Are you booting in AHCI or IDE mode? You may have a problem booting if you change the setting in the BIOS if you've installed your OS in IDE mode. If you have, Google "Enabling AHCI mode AFTER Windows 7 Installation" there are fixes for this around (assuming your running Win7).

    AHCI mode as default from installation.
    deconduo wrote: »
    -Make sure its AHCI mode.
    -Did you connected to at SATA3 port?
    -Check to see if you have the latest SATA drivers here.

    All 6 internal SATA ports are SATA3. I have the latest SATA and chipset drivers from AMD themselves not from the gigabyte site, as they're a little behind although you could be right on the compatibility side of things. I also have the latest BIOS.

    On a side note in case someone asks, I don't see why it could be the wires on the board, as they are all SATA3 therefore why supply me with SATA2 wires? Also scanned for viruses, no sign. I don't know... Very confused! :confused: and thanks anyway for suggestions! :pac: Keep them coming! :D


    EDIT: SORRY! I've just wasted your time. Tryed CrystalDiskMark just there. I was doing random writes. Which on the agility 3 is cut in half compared to the vertex 3 of the same calibre. Sequential read/writes are at the SATA3 standard. My sincerest Apologies!


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