AHCI BIOS Mod

Discussion in 'BIOS Mods' started by Azurium, Jan 4, 2010.

  1. Azurium

    Azurium MDL Novice

    Dec 22, 2009
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    Hi,

    I want to enable AHCI in my laptop because I recently bought a SSD drive. Unfortunately my BIOS has no option for turning AHCI on, so I'm stuck with IDE emulated mode. I have a 945PM chipset with 82801GBM southbridge (ICH7-M).

    If someone could give me a few pointers and warn me about possible pitfalls...

    Thanks.
     
  2. sebus

    sebus MDL Guru

    Jul 23, 2008
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    When I had this problem, I contacted ASRock & they simply added the option to the next BIOS release

    You could always try this route

    You could also at least state what laptop you are talking about...

    sebus
     
  3. Azurium

    Azurium MDL Novice

    Dec 22, 2009
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    Thanks for your very quick reply.

    My laptop is a Z96Js/S96J. I'll try to ask Asus for it but I suspect that there will not be a new BIOS for this model (last one was on January, 2008).
     
  4. sebus

    sebus MDL Guru

    Jul 23, 2008
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    That might be a problem...

    sebus
     
  5. gabiz_ro

    gabiz_ro MDL Member

    Feb 2, 2010
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    Any news about that?
    I own a Dell E1705 or Inspiron 9400 and I'm in the same situation.
    I build one custom pci option rom,guided from some forums,and using this I've managed to rewrite some pci registers and now ICH7-m is switched to AHCI.
    I see this booting linux from usb stick,is really working in AHCI mode.
    But problems is after bios post,bios still report my hdd as is was detected in initial stage that result in imposibillity to boot from hdd,also booting FreeDos is teling me partition error in disk,bios think and deal with hdd as in legacy ide mode but now controller is in AHCI mode.
    I need somehow to force bios to re-detect my drive or override this.
    Somebody told me bios isn't support INT13 extensions but is Int 13h extensions version 2.1 detected on my bios.