I discover the forum this afternoon when I was trying to install OSX ( iAktos method ) on my Pc, the problem is : AHCI settings can't be modified with my actual BIOS.
I saw earlier I wasn't the only one looking for a modded version of R0190Z9.
MODEL: Sony VAIO VPCEJ
VERSION : R0190Z9
BIOS: Insyde H20 (REV3.5)
PS : I want to apologize for my horrible english, I'm french.
Many thank's for you further help !