SATA and AHCI

Discussion in 'SSDs & Data Storage' started by cheerful, Apr 4, 2009.

  1. cheerful

    cheerful n00b

    Messages:
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    Feb 23, 2009
    Is there any article about AHCI vs SATA? I thought SATA2 support NCQ. What does AHCI offer over SATA2?

    My AHCI drive is not shown in "safely remove hardware" wizard. This is not the system drive. I though SATA drive is hot-removable?

    The motherboard does not have an option for SATA, only AHCI. If it's set as AHCI, do I need special driver (not SATA driver) to install XP?

    Thanks!
     
  2. Logan321

    Logan321 [H]ard|Gawd

    Messages:
    1,900
    Joined:
    Oct 9, 2003
    http://en.wikipedia.org/wiki/Advanced_Host_Controller_Interface

    Short form, no extra drivers, enables hotswapping and native command queuing. "SATA" mode is for 1st generation SATA for compatibility reasons. On Intel motherboards, RAID mode uses same drivers as the other two, and has all features of AHCI as well as supporting RAID.