Answer

XP will fail to boot after changing IDE mode to AHCI mode because XP needs to load AHCI driver in AHCI mode which is not needed in IDE mode. Thus, you need to reinstall XP if you want to change from IDE to AHCI mode.

Models

  • Z77 MPOWER
  • B75MA-G43
  • Z77A-G45 GAMING
  • ZH77A-G41
  • B75MA-E31
  • Z77A-G43 GAMING
  • Z77A-GD65
  • B75A-G43
  • B75MA-E33
  • B75A-G41
  • Z77IA-E51
  • Z77A-G45 Thunderbolt
  • Z77A-G43
  • B75A-G43 GAMING
  • ZH77A-G43
  • Z77A-G45
  • Z77MA-G45
  • Z77A-GD65 GAMING
  • Z77A-G41 Plus
  • Z77A-GD55
  • B75A-E33
  • B75IA-E33
  • B75MA-P45
  • B75MA-P33
  • H77MA-G43
  • Z77IA-E53
  • Z77A-G41
  • Z77A-GD80