Need SSD can't find AHCI


  1. AlanRR
    Posts : 57
    Windows 7 - 32bit
       New #1

    Need SSD can't find AHCI


    I have a dual boot system running XP and 7 on an ASUS P5QSE - and all works fine.

    Research suggests I need to get AHCI running as I want to add a SSD for system drive.

    Looked in BIOS - cannot find anything AHCI

    Is this because I have no drives installed that would need AHCI? or that my BIOS does not support AHCI?

    When a SSD is installed does AHCI option become visible?

    Still learning so please excuse if this seems a dumb question.

    Presumably (if a solution is achieved) AHCI is enabled on a drive by drive basis as I want to keep HDD's in use for data.

    Help and advice appreciated.
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  3. Layback Bear
    Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       New #2

    You have a very old computer. (LGA775 socket)
    I don't believe it came with AHCI.
    You could check with Asus and see if their is a bios update to take care of this. They probably don't. Asus also wants to to upgrade to a newer system.
    Realistically their is much you can do with such a old system in my opinion.
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  4. AddRAM
    Posts : 13,576
    Windows 10 Pro x64
       New #3

    There should be 3 options in the bios. IDE. AHCI or Raid. Under the Advanced tab look for drive configuration.

    Not all bios will have all 3, you are fine with IDE. You have 6 sata 3Gbps ports so you`re good.


    Motherboards - P5Q SE - ASUS

    The thing is, if you have XP installed in IDE mode, then installed 7 in AHCI mode, you would have to make that change every time in the bios to boot into either system.
    Last edited by AddRAM; 28 Feb 2015 at 22:52.
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  6. OvenMaster
    Posts : 757
    Win10 Pro 64-bit
       New #4

    Manual is located here: http://dlcdnet.asus.com/pub/ASUS/mb/...QSE_manual.zip
    Section 4.3.5 (Page 4-14) says that you can select IDE or AHCI mode for your SATA ports.
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  7. whs
    Posts : 26,210
    Vista, Windows7, Mint Mate, Zorin, Windows 8
       New #5

    Don't worry about AHCI. Keep running in IDE. That is only a smidgen slower than AHCI. You probably would not even notice the difference.

    And keep XP far away from the SSD. XP does not support Trim. That would really slow down your SSD.
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  8. ThrashZone
    Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       New #6

    Wow this is like deja vu AHCI
    ahci port3 device error
    That was my bios errer on Win-10tp dead hdd after that :/
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  10. AlanRR
    Posts : 57
    Windows 7 - 32bit
    Thread Starter
       New #7

    Ok - thanks everyone - AHCI I will do without for the time being - I am convinced the boost from SSD will be satisfying enough in itself.
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  11. whs
    Posts : 26,210
    Vista, Windows7, Mint Mate, Zorin, Windows 8
       New #8

    Smart thinking.
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