Asus RS120-E4 User Guide - Page 81

The AHCI allows the onboard storage driver to enable advanced Serial ATA features that increases storage performance on random workloads by allowing the drive to internally optimize the order of commands. If you want the Serial ATA hard disk drives to use the Advanced Host Controller Interface (AHCI), set this item to [AHCI]. For details on AHCI, go to: www.intel.com/support/chipsets/imst/sb/CS-012304.htm www.intel.com/support/chipsets/imst/sb/CS-012305.htm The SATA controller is set to Native mode when this item is set to [RAID] or [AHCI]. Onboard SATA RAID ROM [Disabled] Allows you to enable or disable the onboard SATA RAID boot ROM. Configuration options: [Disabled] [Enabled] The Onboard SATA RAID ROM item appears only when you set the Configure SATA As item to [RAID]. Legacy IDE Channels [SATA Pri, PATA Sec] Allows you to set Serial ATA, Parallel ATA, or both, to legacy mode. Configuration options: • [SATA Only] - SATA1, SATA2, SATA3, and SATA4 ports are available • [PATA Pri, SATA Sec] - SATA2 and SATA4 ports are available • [SATA Pri, PATA Sec] - SATA1 and SATA3 ports are available • [PATA Only] - Only PATA ports are available The Legacy IDE Channels option appears only when you set the ATA/IDE Configuration item to [Compatible] mode. ASUS RS120-E4/PA4 5-15