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Ahci

I have Windows 7 with a SSD and I am looking to set up AHCI. I don't have anything else installed on my computer yet so the best way would be to do a fresh install so I don't need to do a workaround. So my question is how do you set this up? Do you just change it in the BIOS and then install windows and all is done or is there something else you need to do? A second question then is how do you set up TRIM?

Thanks.
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  1. Best answer
    All you need to do is to configure the BIOS so that your disk controllers are running in "AHCI" mode and not "IDE Compability" mode. Then, when you install Windows, it will automatically load the correct drivers and you'll be up and running.

    There's nothing special you need to do to enable TRIM - as long as you're using Windows 7 it will automatically issue TRIM commands.
  2. Jordan_22 said:
    I have Windows 7 with a SSD and I am looking to set up AHCI. I don't have anything else installed on my computer yet so the best way would be to do a fresh install so I don't need to do a workaround. So my question is how do you set this up? Do you just change it in the BIOS and then install windows and all is done or is there something else you need to do? A second question then is how do you set up TRIM?

    Thanks.



    Yes , that is all there is to it , quick and painless.
  3. What mobo do u have? My ASUS was already set in the AHCI. Check your manual : )
  4. I'd expect most of the new motherboards to have AHCI set as the default. The only reason you need to run the controller in IDE Emulation mode is if you're using an old OS like XP which doesn't have built-in support for AHCI (and even then it's a fairly simple matter to load the AHCI driver from a CD during the install process). So for most new systems AHCI is what ought to be used anyway.
  5. sminlal said:
    I'd expect most of the new motherboards to have AHCI set as the default. The only reason you need to run the controller in IDE Emulation mode is if you're using an old OS like XP which doesn't have built-in support for AHCI (and even then it's a fairly simple matter to load the AHCI driver from a CD during the install process). So for most new systems AHCI is what ought to be used anyway.

    +1 sminlal ^^^
  6. sminlal said:
    I'd expect most of the new motherboards to have AHCI set as the default. The only reason you need to run the controller in IDE Emulation mode is if you're using an old OS like XP which doesn't have built-in support for AHCI (and even then it's a fairly simple matter to load the AHCI driver from a CD during the install process). So for most new systems AHCI is what ought to be used anyway.



    I have the GIGABYTE GA-Z68Xp-ud3

    I don't think that it was set by default.
    I think it asked me something when I first turned on the computer for the first time about AHCI but is said like AHCI/raid and I think that I ignored it.

    This was before I even installed the OS just turned on the PC to make sure all was running.
  7. I am not sure if I did this right I changed the setting in PCH SATA controller mode to AHCI in the BIOS then re-installed windows.

    How can I tell if it worked?

    I now get a message when I boot up.

    Controller Bus#00 devise#1f function#2: 06 (the rest got cut off)
    Port-00 hard disk m4 (yada yada ya)
    Port-01 WD Hard drive
    Port-02 CDROM
    03 no devise detected
    04 no devise detected
    05 no devise detected
    AHCI BIOS Installed

    So does this mean that it is working? or is there some other way to tell?

    Thanks for the help

    one quick question how do you attach pictures to your posts?
  8. Yes, it is running in AHCI mode.
    If I were you, I would do some streamlining by disabling the ports, and any other controllers not being used (don't have anything connected to them) in the BIOS.
    You will get a faster POST by doing so.
  9. Best answer selected by jordan_22.
  10. This topic has been closed by Nikorr.
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