iam trying to install mac osx as dual boot on vpcec1s1e and got problems , need to enable achi in bios, but no option, -Motherboard Manufacturer and Model :sony vaio i5 vpcec1s1e -Bios Revision :r0300y8 ecversion k0300y8 -Bios Type :aptio american megatrends need to modify so i can install mac, need achi enabled , no options in bios , locked , please help, and tryed sycmos and get null error. any help please