1.    3 Weeks Ago #1
    Join Date : Oct 2016
    Posts : 1
    Windows 7

    I Don't have any AHCI mode in my BIOS?

    Hello people, i'm new in this forum so i'm sorry if i shouldn't post in this section
    so i just bought a new SSD (850 evo 250gb) And it says on it's software i should enable AHCI mode on my bios
    to get it faster. also the tests results show 250 when it was supposed to hit 520-540, and i think it's due to not having
    AHCI mode, but i tried to change it in my BIOS, but i only have these 3 options:

    - S-ATA+P-ATA
    - S-ATA (which is the one i'm using now)
    - P-ATA

    Isn't there any other way to change it to AHCI mode?
    thank you.
      My System SpecsSystem Spec

  2.    3 Weeks Ago #2
    Join Date : Jul 2015
    Posts : 661
    Windows 10 Home x64

    What chipset do you have?
      My System SpecsSystem Spec

  3.    3 Weeks Ago #3
    Join Date : Jun 2016
    Los Angeles
    Posts : 252
    Windows 10 Pro

    What is the make and model# of your computer/motherboard?
    The SATA selection in your Bios is AHCI, Older motherboard will list it this way.
    Also, your SSD is probably SATA III which transfers UP TO 6.0 Mbps. However, your motherboard and chipset may only be SATA II transferring UP TO 3Mbps.
    Updating your Bios will help a little but it will not make a SATA II chipset SATA III
    You can get a PCIe addin card that has SATA III 6Mbps transfer speed.
      My System SpecsSystem Spec


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