INTEL平台AHCI的部分在舊的Award/Phoenix才有獨立的AHCI Option ROM，若是AMI的話可以不用多加處理，G31系列本身就已經支援AHCI，你可以參考：
http://www.win-raid.com/t7f13-AHCI-...OM-Modules.html
節錄：
Intel AHCI ROM modules
•Remarks: According to my knowledge only Award/Phoenix BIOSes (and maybe some non-UEFI AMI BIOSes) of older mainboards do contain a discrete Intel AHCI ROM module, whereas the AMI UEFI BIOSes of the newer mainboards (with an Intel Chipset from 6-Series up) just contain an Intel RAID ROM, but no Intel AHCI ROM module.
The function and the compatibility of the "Intel(R) SATA AHCI Controller" obviously is managed by a "normal" (non-OROM) BIOS module, which cannot resp. don't need to be updated...