[REQUEST] Sony Vaio VGN-C1Z AHCI

I am just digging into the subject and found this on strings section of BIOS

Quote:'Compatible:', 0Dh, 'SATA Drive = Primary', 0Dh, 'on SATA Controller, in', 0Dh, 'Legacy Mode. PATA', 0Dh, 'Drive = Secondary on', 0Dh, 'SATA Controller, in', 0Dh, 'Legacy Mode.', 0Dh, 0Dh, 'Enhanced:', 0Dh, 'SATA Drive = Primary', 0Dh, 'on SATA Controller, in', 0Dh, 'Native Mode. PATA', 0Dh, 'Drive = Primary on PATA', 0Dh, 'Controller, in Legacy', 0Dh, 'Mode.'

So I assume AHCI can be possible. Could you help me bringing up the hidden menu of AHCI?
It is better/easier to activate it by NVRAM? How?

The bios is this one:
http://download.sony-europe.com/PUB/Down...016-UN.exe

I want to optimize my SSD a bit. Thanks!