EVGA X58 FTW - Manual (Page 47)

EVGA X58 SLI Motherboard
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onboard serial port 1 function. Options are [3F8/IRQ4], [2F8/IRQ3],
[3E8/IRQ4], [2E8/IRQ3], [Auto], and [Disabled]
OnChip PATA/SATA Device
Press Enter to display the OnChip PATA/SATA Device menu.
SATA Mode
This is allows you set the onboard Serial SATA mode.
IDE: Use the SATA hard disk drivers as Parallel ATA storage devices.
RAID: Create a RAID 0, 1, 0+1, and 5 configuration
AHCI: Use the AHCI (Advanced Host Controller Interface) to enables
advanced SATA features for improved performance with NCQ and
Hot-plug features
LEGACY Mode Support
This function allows the SATA controller to operate in LEGACY mode.
Selected Disabled if you install operating system that support Native mode.
SATA Mode
[AHCI]
X LEGACY Mode Support [Disabled]
SATA 3.0 Storage Controller [Enabled]