to the first on-board SATA controller. 
IDE – Enables the SATA controller. Sets the device 
class code as IDE and uses PCI IRQ (referred as Native 
mode). This token applies to the first on-board SATA 
controller. 
AHCI – Enables the SATA controller. Sets the device 
class code as SATA and sets up the AHCI BARs and 
registers. This token applies to the first on-board SATA 
controller. 
RAID – Enables the SATA controller. Sets the device 
class code as RAID and executes the RAID Option 
ROM. This token applies to the first on-board SATA 
controller.