Difference between IDE and AHCI?

i'm about to build my first pc tonight and i have 2 options for the motherboard:
1. Using sata/sata II HDDs without NCQ and hot plug functions (IDE mode)
2. Using sata/sata II HDDs with NCQ and hot plug functions (AHCI mode)

what is the difference between IDE and AHCI? I will be installing Windows 7 Ultimate 64bit if that helps?
4 answers Last reply
More about difference ahci
  1. IDE is an old standard . Original IDE hard drives had huge flat ribbon cables with 40 , and then 80 wires .
    When SATA got introduced operating systems didnt have built in SATA drivers so board makers included the IDE mode


    Use AHCI and NCQ and enable SMART for your OS
  2. Outlander_04 said:
    IDE is an old standard . Original IDE hard drives had huge flat ribbon cables with 40 , and then 80 wires .
    When SATA got introduced operating systems didnt have built in SATA drivers so board makers included the IDE mode


    Use AHCI and NCQ and enable SMART for your OS


    thank you for this, i'll use AHCI, could you please tell me what SMART is and is this enabled via BIOS or when i install Windows 7?
  3. S.M.A.R.T is an error checking system for the hard drive .

    If it starts to fail it should give you some warning . Its enabled in BIOS .
  4. Outlander_04 said:
    S.M.A.R.T is an error checking system for the hard drive .

    If it starts to fail it should give you some warning . Its enabled in BIOS .


    ok thank youu :)
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