Storage forgot to set SSD to AHCI mode before windows install

Discussion in 'Hardware' started by chewbaccas_nan, 31 Dec 2013.

  1. chewbaccas_nan

    chewbaccas_nan Minimodder

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    What should I do? I've just built my new PC and didn't realise I had to do it prior to installing windows. I've done all the driver and windows updates and stuff too :(
     
    chewbaccas_nan, 31 Dec 2013
    #1
  2. RedFlames

    RedFlames ...is not a Belgian football team

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    RedFlames, 31 Dec 2013
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  3. chewbaccas_nan

    chewbaccas_nan Minimodder

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    Hmm kind of scared to go into the registry
     
    chewbaccas_nan, 31 Dec 2013
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  4. andreinuk

    andreinuk Minimodder

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    andreinuk, 31 Dec 2013
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  5. theshadow2001

    theshadow2001 [DELETE] means [DELETE]

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    It's not a big deal. Something has to change those registry values. The registry can be backed up as far as I'm aware.
     
    theshadow2001, 31 Dec 2013
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  6. chewbaccas_nan

    chewbaccas_nan Minimodder

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    Yeah that guide looks straight forward. Should I create a restore point before doing so?

    Also what about ahci drivers will they automatically install once I've done it correctly and windows reboots?
     
    chewbaccas_nan, 31 Dec 2013
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  7. RedFlames

    RedFlames ...is not a Belgian football team

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    no and yes [or they did for me]
     
    RedFlames, 31 Dec 2013
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  8. lp rob1

    lp rob1 Modder

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    I did this exact thing this morning actually. Worked fine. I still don't quite understand why Windows needs to be told of AHCI otherwise it crashes...
     
    lp rob1, 31 Dec 2013
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  9. chewbaccas_nan

    chewbaccas_nan Minimodder

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    Did your drivers update automatically once you were back in windows?
     
    chewbaccas_nan, 31 Dec 2013
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  10. lp rob1

    lp rob1 Modder

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    Yup, they updated without any problems. I was disconnected from the Internet too, but it still worked just fine.
     
    lp rob1, 31 Dec 2013
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  11. Big Elf

    Big Elf Oh no! Not another f----ing elf!

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    Microsoft did a simple 'Fix It' for this
     
    Big Elf, 31 Dec 2013
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  12. chewbaccas_nan

    chewbaccas_nan Minimodder

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    Cheers guys will get to this tomorrow. Happy new year to all bit teachers!
     
    chewbaccas_nan, 31 Dec 2013
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  13. Measter

    Measter What's a Dremel?

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    From what I understand, Windows disables it if it doesn't need them to speed up boot times.
     
    Measter, 31 Dec 2013
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  14. Harlequin

    Harlequin Modder

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    Harlequin, 31 Dec 2013
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  15. chewbaccas_nan

    chewbaccas_nan Minimodder

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    Locate and then click one of the following registry subkeys:
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\IastorV

    In the pane on the right side, right-click Start in the Name column, and then click Modify.
    In the Value data box, type 0, and then click OK.
    On the File menu, click Exit to close Registry Editor.


    Does that mean I only have to change the value for JUST Msachi and not the other?
     
    chewbaccas_nan, 1 Jan 2014
    #15
  16. Harlequin

    Harlequin Modder

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    click the MS link , use fixit - , restart and enable AHCI = job done
     
    Harlequin, 1 Jan 2014
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  17. RedFlames

    RedFlames ...is not a Belgian football team

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    both, but as harlequin says the ms 'one-click' fix is probably gonna be less grief for you...
     
    RedFlames, 1 Jan 2014
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  18. chewbaccas_nan

    chewbaccas_nan Minimodder

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    Ah Ok I didn't even realise that fix it thing did it for you! As long as I know I have to change both sub directories then I would have done it manually but not much point I might as well let fix it for me!

    What are the benefits of ahci mode? Speedier and a longer lasting drive?
     
    chewbaccas_nan, 1 Jan 2014
    #18

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