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Thread: Can only boot in IDE mode after installing Windows 8 in AHCI mode




  1. #1
    thatguy77 is offline Junior Member
    Join Date
    Mar 2012
    Location
    California
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    Default Can only boot in IDE mode after installing Windows 8 in AHCI mode

    Hey guys. Really weird issue here and can't find anyone with the same problem, hoping somebody can point me in the right direction.


    Hardware info you probably need:


    MOBO: Gigabyte GA-EX58-UD3R
    Crucial M4 SSD in main SATA port
    WD Black HD in secondary SATA port
    DVD drive in a third SATA port


    I had Windows 7 installed on my SSD, wanted to make the leap to Windows 8 (don't ask why). Windows 7 was installed on AHCI mode and running on AHCI mode just fine. Mobo was set to AHCI mode, hasn't been in IDE mode in nearly a year.


    I installed Windows 8 from a USB drive (while mobo was set to AHCI mode). It detected all my drives. I deleted the old partitions and formatted a new one. After it installed, it wouldn't get past mobo AHCI controller screen and it said: Controller Bus #00 etc etc. It hanged there with a blinking cursor:





    I tried restarting and getting back into BIOS but it wouldn't let me. BIOS always comes after that screen usually and it wouldn't get past that screen. THE ONLY WAY I could fix this was to reset my CMOS (and the only way to do that on my board is taking out the battery as far as I know, no jumper switch anywhere I can spot).


    After resetting CMOS I was able to boot into BIOS no problem, and with IDE set by default, my SSD booted just fine and Windows 8 loaded for the first time. After finishing the Windows 8 setup and installing some drivers I tried setting it back to AHCI with no luck, same problem.


    Anyone have any ideas? Really frustrated here, especially since every failed attempt means taking out my graphics card so I can reach my CMOS battery and then taking out my CMOS battery.


    Please keep in mind, this is different than the many people that want to switch to AHCI mode after installing in IDE. I installed this in AHCI mode.


    Thanks for all your help!

  2. #2
    thatguy77 is offline Junior Member
    Join Date
    Mar 2012
    Location
    California
    Posts
    17

    Default Re: Can only boot in IDE mode after installing Windows 8 in AHCI mode

    Somebody with a similar problem 2 years ago: http://forums.tweaktown.com/gigabyte...i-problem.html

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