Switch AHCI TO IDE (Tutorial HowTo) !!!


  1.    23 Feb 2011 #11
    Join Date : Feb 2011
    Posts : 1
    Vista Home Premium 32bit
    Local Time: 02:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    Quote Originally Posted by Zeeshan Arshad View Post
    Excellent work Roli!!! (I registered here just to reply you

    I have a problem in laptop that it freezes for a few seconds (sometimes every few minutes). I found a solution to solve this by changing AHCI to IDE. However, it was impossible to do so by just changing it to IDE in BIOS settings.

    I followed your tips and it perfectly worked (no BSOD anymore or restarts).
    Same here!

    Many thanks Roli, you're a star.

    Regards,
    Darren
      My System SpecsSystem Spec

  2.    17 Mar 2011 #12
    Join Date : Mar 2011
    Posts : 1
    ultimate 32
    Local Time: 22:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    I am running in AHCI mode now and want to switch to IDE. In your post you show:

    HKEY_LOCAL_MACHINE_System_CurrentControlSet_Services_Msahci
    HKEY_LOCAL_MACHINE_System_CurrentControlSet_Services_iaStor
    HKEY_LOCAL_MACHINE_System_CurrentControlSet_Services_iaStorV

    and you set each to 1 but from what? Is it supposed to be 0 before?

    In my system I have:
    Msahci = 0
    iaStorV = 3
    PciIde = 3

    I do not have a iaStor key at all.

    Does anyone know why I do not have an iastor key or why when the others are turned off it is a 3 instead of a 1?
      My System SpecsSystem Spec

  3.    29 Mar 2011 #13
    Join Date : Dec 2008
    Stuttgart, Germany
    Posts : 22
    Vista Home Premium x64 SP2
    Local Time: 04:14
    usa us florida

     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    Quote Originally Posted by barrybgb View Post
    I am running in AHCI mode now and want to switch to IDE. In your post you show:

    HKEY_LOCAL_MACHINE_System_CurrentControlSet_Services_Msahci
    HKEY_LOCAL_MACHINE_System_CurrentControlSet_Services_iaStor
    HKEY_LOCAL_MACHINE_System_CurrentControlSet_Services_iaStorV

    and you set each to 1 but from what? Is it supposed to be 0 before?

    In my system I have:
    Msahci = 0
    iaStorV = 3
    PciIde = 3

    I do not have a iaStor key at all.

    Does anyone know why I do not have an iastor key or why when the others are turned off it is a 3 instead of a 1?
    Some of my sets were on #s other than 0. Just change them to 1. Did you run the Edit Fix tool located on the bottom of the first post? That might add the iaStor key.

    Thanks to the OP for the hard work and sharing it with everone! It worked for me!
      My System SpecsSystem Spec

  4.    10 Apr 2011 #14
    Join Date : Apr 2011
    Posts : 1
    Windows 7 Home Premium x64
    Local Time: 02:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    First of all, thanks for this small guide.

    However, I am now encountering a bad problem.

    I did all the registry changes as you proposed. I restarted and changed from AHCI to IDE in BIOS before Windows would load up again. Windows started and a box appeared listing IDE and ATA related stuff being installed. Then I restarted as it prompted me to. Then on next load: BSOD. It appeared to work fine at first, but then failed. One thing I noticed was that the "Start"-value in HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/PciIde was already set to 0 beforehand, so I just left it so. Did I do something wrong? And what should I do now? I have the option to perform a System Restore to god-knows-when. Damnit. ^^

    Best regards,
    Zyl

    EDIT: Error reads "BAD_POOL_CALLER", which usually indicates bad RAM. I believe something went wrong on the lowest level of hardware interaction lol.
    EDIT2: Changing back to AHCI causes another bluescreen to appear even as the animated windows logo pops up and I cannot get the chance to read what it says at all, because it disappears too quickly.
    EDIT3: System restore saved my butt. That means I can infinitely try to mess around with this till something works. Waiting for some input on what I should try/check. Thanks in advance.
    EDIT4: Just set it to IDE and reinstalled Win7 completely and it set itself up correctly that way.
    Last edited by Zyl; 11 Apr 2011 at 14:53.
      My System SpecsSystem Spec

  5.    14 Jul 2011 #15
    Join Date : Jul 2011
    Posts : 1
    Windows 7 Professional 64 Bit
    Local Time: 20:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    Worked perfectly. Just follow the tutorial and everything works fine. Good job.
      My System SpecsSystem Spec

  6.    30 Aug 2011 #16
    Join Date : Aug 2011
    Posts : 1
    32
    Local Time: 20:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    This might be a great bump but I just wanted to tell OP that I too created this acc to thank you!
    I wasnt able to install w7 without this tutorial! Thank you so much!

    (when i used AHCI they asked for drivers n' stuff which I couldnt skip, which made me unable to go further)
      My System SpecsSystem Spec

  7.    04 Sep 2011 #17
    Join Date : Sep 2011
    Posts : 1
    windows 7 64bit
    Local Time: 20:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    Quote Originally Posted by Zyl View Post
    First of all, thanks for this small guide.

    However, I am now encountering a bad problem.

    I did all the registry changes as you proposed. I restarted and changed from AHCI to IDE in BIOS before Windows would load up again. Windows started and a box appeared listing IDE and ATA related stuff being installed. Then I restarted as it prompted me to. Then on next load: BSOD. It appeared to work fine at first, but then failed. One thing I noticed was that the "Start"-value in HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/PciIde was already set to 0 beforehand, so I just left it so. Did I do something wrong? And what should I do now? I have the option to perform a System Restore to god-knows-when. Damnit. ^^

    Best regards,
    Zyl

    EDIT: Error reads "BAD_POOL_CALLER", which usually indicates bad RAM. I believe something went wrong on the lowest level of hardware interaction lol.
    EDIT2: Changing back to AHCI causes another bluescreen to appear even as the animated windows logo pops up and I cannot get the chance to read what it says at all, because it disappears too quickly.
    EDIT3: System restore saved my butt. That means I can infinitely try to mess around with this till something works. Waiting for some input on what I should try/check. Thanks in advance.
    EDIT4: Just set it to IDE and reinstalled Win7 completely and it set itself up correctly that way.
    I had the same problem. I've started with F8 into safe mode and it worked. So I decided that the problem was with video. Under save mode I started run/msconfig/boot(tab)/ and checked the 'Base video' option. After a reboot the system started in save video mode (low resolution) and I could logon. The problem is that every time I should change manually the resolution to higher and I still want to find a way to fix that.
    EDIT: Reinstalling the ATI drivers fixed my problem. Maybe this is a good thing to do to uninstall video driver before switching of the disk because of the mess that happens with the hardware resources. But who could predict which resource will be in your case?
    Last edited by flinta; 04 Sep 2011 at 19:16.
      My System SpecsSystem Spec

  8.    03 Nov 2011 #18
    Join Date : Aug 2010
    Posts : 3
    Windows 7 HP 64b
    Local Time: 18:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    Not like I don't appreciate it but I had to share that on my Acer 5251 Windows 7 HP 64bit pre-installed with AHCI just took a direct change in the BIOS to IDE and upon reboot, two drivers were automatically downloaded/installed and I was prompted to restart.... all good.
      My System SpecsSystem Spec

  9.    09 Nov 2011 #19
    Join Date : Nov 2011
    Posts : 1
    x64
    Local Time: 02:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    have been looking for this info. so many tnx. i have a couple of questions, however. hope someone can enlighten me.
    will this work on windows 7 x64? as my windows 7 machine has AHCI enabled, can i change back to using AHCI from IDE if i want to, when i want to? will i have to do anything to re-enable the AHCI settings? the reason i am asking is because i cant do a image of my sata lll hdd. i suspect it is because of the AHCI setting, but not sure.

    TIA
      My System SpecsSystem Spec

  10.    09 Nov 2011 #20
    Join Date : Aug 2010
    Posts : 3
    Windows 7 HP 64b
    Local Time: 18:14


     

    Re: Switch AHCI TO IDE (Tutorial HowTo) !!!


    That's funny, the whole reason I looked into switching to IDE was because of backup issues. Anyway, it did not help, so I switched back AHCI... no problems.
      My System SpecsSystem Spec

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Switch AHCI TO IDE (Tutorial HowTo) !!!

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