[REQUEST] BIOS MOD ENABLED AHCI SONY VGN-CR21S/P

Hello!!

I've been looking for a while on how to enable AHCI on my old notebook Sony VGN-CR21S / P.

I have installed a ssd and really goes well because it does not have ahci.

I have installed windows 7 pro 64 bits and 4gb ram DDR800 @ 667 mhz

The notebook pc drivers are here and as the bios that page is:

http://sonyvaiodriver.com/category/sony-...p-drivers/

R1121Q0

Until Friday I will have a new charger for the laptop and I can not verify 100% but should be putting this page.

In the list of NVRAM does not appear that this can be enabled AHCI bios. Is it true? How could enable ?. I would not mind putting another bios the laptop pc.

CR Models:
VGN-CR240E R1121Q0 reg 05BB
VGN-CR290E R1121Q0 reg 05BB
VGN-CR231E R1121Q0 reg 05BB
VGN-reg CR29XN R1121Q0 05BB
VGN-CR220E R1121Q0 reg 05BB

Thank´s.