Enable AHCI. Bios R0300Y8

[OSKR91]

Hi, I'm new to this forum and I have a laptop Sony Vaio VPCEC1C4E with R0300y8 BIOS version.
I thought about installing Mac OS X Lion, but I can not enable AHCI mode.
Someone who can help me with the advanced menu unlocked.
I'm looking for over a week in many places and I could not.
Thank you all.

   

[Ravi2429]

Did anyone having a solution for this please? i am having a similar issue..want to change my RAM frequency